diff --git a/src/PageManager.tsx b/src/PageManager.tsx
index e3783d5e..2248e5d9 100644
--- a/src/PageManager.tsx
+++ b/src/PageManager.tsx
@@ -7,7 +7,12 @@ import { RefreshButton } from '@/components/RefreshButton'
 import { Button } from '@/components/ui/button'
 import { cn } from '@/lib/utils'
 import logger from '@/lib/logger'
-import { useMobileSwipeBackOnElement } from '@/lib/mobile-swipe-back'
+import {
+  MOBILE_SWIPE_BACK_DOMINANCE,
+  MOBILE_SWIPE_BACK_EDGE_PX,
+  MOBILE_SWIPE_BACK_MIN_PX,
+  useMobileSwipeBackOnElement
+} from '@/lib/mobile-swipe-back'
 import { preventRadixSheetCloseForPortaledOverlay } from '@/lib/sheet-dismiss-guard'
 import { ChevronLeft } from 'lucide-react'
 import { NavigationService } from '@/services/navigation.service'
@@ -42,7 +47,6 @@ import {
   useState
 } from 'react'
 import { useEventCallback } from '@/hooks/use-event-callback'
-import { flushSync } from 'react-dom'
 import { useTranslation } from 'react-i18next'
 import { KeyboardShortcutsHelpProvider } from '@/components/KeyboardShortcutsHelp'
 import {
@@ -1151,7 +1155,11 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
   }, [currentPrimaryPage])
   const navigationCounterRef = useRef(0)
   const goBackRef = useRef<() => void>(() => {})
+  const drawerOpenRef = useRef(drawerOpen)
   const [mobilePrimarySwipeRoot, setMobilePrimarySwipeRoot] = useState<HTMLElement | null>(null)
+  useLayoutEffect(() => {
+    drawerOpenRef.current = drawerOpen
+  }, [drawerOpen])
   const primaryPanelRefreshRef = useRef<(() => void) | null>(null)
   const registerPrimaryPanelRefresh = useCallback((fn: (() => void) | null) => {
     primaryPanelRefreshRef.current = fn
@@ -1988,6 +1996,10 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
       return
     }
     if (isCurrentPage(secondaryStackRef.current, url)) {
+      const top = secondaryStackRef.current[secondaryStackRef.current.length - 1]
+      if (isSmallScreen && top) {
+        window.history.pushState({ index: top.index, url }, '', url)
+      }
       logger.component('PageManager', 'pushSecondaryPage skipped (already on stack)', { url })
       return
     }
@@ -2032,8 +2044,11 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
       }
       
       if (isCurrentPage(prevStack, url)) {
+        const top = prevStack[prevStack.length - 1]
+        if (isSmallScreen && top) {
+          window.history.pushState({ index: top.index, url }, '', url)
+        }
         logger.component('PageManager', 'Page already exists, not scrolling')
-        // NEVER scroll to top - maintain scroll position
         return prevStack
       }
 
@@ -2055,16 +2070,56 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
     })
   }
 
+  const restorePrimaryTabAfterSecondaryClose = () => {
+    const page = currentPrimaryPageRef.current
+    const savedFeedState = savedFeedStateRef.current.get(page)
+    if (savedFeedState?.tab) {
+      window.dispatchEvent(
+        new CustomEvent('restorePageTab', {
+          detail: { page, tab: savedFeedState.tab }
+        })
+      )
+      currentTabStateRef.current.set(page, savedFeedState.tab)
+    }
+  }
+
+  const hardCloseSecondaryPanel = () => {
+    if (secondaryStackRef.current.length === 0 && !drawerOpenRef.current) {
+      return
+    }
+    if (drawerOpenRef.current) setDrawerOpen(false)
+    setSinglePaneSheetOpen(false)
+    secondaryStackRef.current = []
+    queueMicrotask(() => {
+      setSecondaryStack([])
+    })
+    replaceHistoryWithPrimaryPageUrl(
+      currentPrimaryPageRef.current,
+      primaryPagePropsRef.current.get(currentPrimaryPageRef.current) as { spell?: string } | undefined
+    )
+    restorePrimaryTabAfterSecondaryClose()
+  }
+
   const popSecondaryPage = () => {
     const stackLen = secondaryStackRef.current.length
 
+    // Mobile / single-pane: one code path — drawer + stack share the same close behavior
+    if (isSmallScreen || panelMode === 'single') {
+      if (stackLen > 1) {
+        window.history.back()
+      } else {
+        hardCloseSecondaryPanel()
+      }
+      return
+    }
+
     // In double-pane mode, never open drawer - just pop from stack
     if (panelMode === 'double' && !isSmallScreen) {
       if (stackLen === 1) {
-        flushSync(() => {
+        secondaryStackRef.current = []
+        queueMicrotask(() => {
           setSecondaryStack([])
         })
-        secondaryStackRef.current = []
         replaceHistoryWithPrimaryPageUrl(
           currentPrimaryPage,
           primaryPagePropsRef.current.get(currentPrimaryPage) as { spell?: string } | undefined
@@ -2095,83 +2150,51 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
       }
       return
     }
-    
-    // Single-pane mode or mobile: check if drawer is open and stack is empty - close drawer instead
-    if (drawerOpen && stackLen === 0) {
-      // Close drawer and reveal the background page
-      setDrawerOpen(false)
-      return
-    }
-    
-    // On mobile or single-pane: if stack has 1 item and drawer is open, close drawer and clear stack
-    if ((isSmallScreen || panelMode === 'single') && stackLen === 1 && drawerOpen) {
-      setDrawerOpen(false)
-      flushSync(() => {
-        setSecondaryStack([])
-      })
-      secondaryStackRef.current = []
-      replaceHistoryWithPrimaryPageUrl(
-        currentPrimaryPage,
-        primaryPagePropsRef.current.get(currentPrimaryPage) as { spell?: string } | undefined
-      )
+  }
 
-      const savedFeedState = savedFeedStateRef.current.get(currentPrimaryPage)
+  const clearSecondaryPages = () => {
+    hardCloseSecondaryPanel()
+  }
 
-      if (savedFeedState?.tab) {
-        logger.info('PageManager: Mobile/Single-pane - Restoring tab state', { page: currentPrimaryPage, tab: savedFeedState.tab })
-        window.dispatchEvent(new CustomEvent('restorePageTab', { 
-          detail: { page: currentPrimaryPage, tab: savedFeedState.tab } 
-        }))
-        currentTabStateRef.current.set(currentPrimaryPage, savedFeedState.tab)
-      }
-      return
-    }
-    
-    if (stackLen === 1) {
-      flushSync(() => {
-        setSecondaryStack([])
-      })
-      secondaryStackRef.current = []
-      replaceHistoryWithPrimaryPageUrl(
-        currentPrimaryPage,
-        primaryPagePropsRef.current.get(currentPrimaryPage) as { spell?: string } | undefined
-      )
+  const mobileSecondaryOpen = isSmallScreen && (drawerOpen || secondaryStack.length > 0)
+  useEffect(() => {
+    if (!mobileSecondaryOpen) return
 
-      const savedFeedState = savedFeedStateRef.current.get(currentPrimaryPage)
+    let grab: { x: number; y: number; pointerId: number } | null = null
 
-      if (savedFeedState?.tab) {
-        logger.info('PageManager: Desktop - Restoring tab state', { page: currentPrimaryPage, tab: savedFeedState.tab })
-        window.dispatchEvent(new CustomEvent('restorePageTab', { 
-          detail: { page: currentPrimaryPage, tab: savedFeedState.tab } 
-        }))
-        currentTabStateRef.current.set(currentPrimaryPage, savedFeedState.tab)
+    const onPointerDown = (e: PointerEvent) => {
+      if (e.button !== 0 || e.clientX > MOBILE_SWIPE_BACK_EDGE_PX) return
+      grab = { x: e.clientX, y: e.clientY, pointerId: e.pointerId }
+    }
+
+    const onPointerUp = (e: PointerEvent) => {
+      if (!grab || grab.pointerId !== e.pointerId) return
+      const dx = e.clientX - grab.x
+      const dy = e.clientY - grab.y
+      grab = null
+      const ax = Math.abs(dx)
+      const ay = Math.abs(dy)
+      if (dx < MOBILE_SWIPE_BACK_MIN_PX || ax < ay * MOBILE_SWIPE_BACK_DOMINANCE) return
+      if (secondaryStackRef.current.length > 1) {
+        window.history.back()
+      } else {
+        hardCloseSecondaryPanel()
       }
-    } else if (stackLen > 1) {
-      // Same as double-pane: let popstate shrink the stack so it matches history.
-      window.history.back()
-    } else {
-      replaceHistoryWithPrimaryPageUrl(
-        currentPrimaryPage,
-        primaryPagePropsRef.current.get(currentPrimaryPage) as { spell?: string } | undefined
-      )
     }
-  }
 
-  const hardCloseSecondaryPanel = useCallback(() => {
-    if (drawerOpen) setDrawerOpen(false)
-    setSinglePaneSheetOpen(false)
-    setSecondaryStack((prev) => (prev.length ? [] : prev))
-    secondaryStackRef.current = []
-    const page = currentPrimaryPageRef.current
-    replaceHistoryWithPrimaryPageUrl(
-      page,
-      primaryPagePropsRef.current.get(page) as { spell?: string } | undefined
-    )
-  }, [drawerOpen])
+    const onPointerCancel = () => {
+      grab = null
+    }
 
-  const clearSecondaryPages = () => {
-    hardCloseSecondaryPanel()
-  }
+    document.addEventListener('pointerdown', onPointerDown, { capture: true })
+    document.addEventListener('pointerup', onPointerUp, { capture: true })
+    document.addEventListener('pointercancel', onPointerCancel, { capture: true })
+    return () => {
+      document.removeEventListener('pointerdown', onPointerDown, { capture: true })
+      document.removeEventListener('pointerup', onPointerUp, { capture: true })
+      document.removeEventListener('pointercancel', onPointerCancel, { capture: true })
+    }
+  }, [mobileSecondaryOpen])
 
   useEffect(() => {
     const shouldBeOpen =
@@ -2312,7 +2335,7 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
                     setDrawerOpen(true)
                     return
                   }
-                  popSecondaryPage()
+                  hardCloseSecondaryPanel()
                 }}
                 noteId={drawerNoteId}
               />
diff --git a/src/components/Embedded/EmbeddedNote.tsx b/src/components/Embedded/EmbeddedNote.tsx
index 558bc161..e2ba9be6 100644
--- a/src/components/Embedded/EmbeddedNote.tsx
+++ b/src/components/Embedded/EmbeddedNote.tsx
@@ -1,11 +1,6 @@
 import { Skeleton } from '@/components/ui/skeleton'
 import ExternalLink from '@/components/ExternalLink'
-import {
-  FAST_READ_RELAY_URLS,
-  PROFILE_RELAY_URLS,
-  SEARCHABLE_RELAY_URLS,
-  ExtendedKind
-} from '@/constants'
+import { FAST_READ_RELAY_URLS, PROFILE_RELAY_URLS, ExtendedKind } from '@/constants'
 import { getFavoritesFeedRelayUrls } from '@/lib/favorites-feed-relays'
 import { LIVE_ACTIVITY_KINDS } from '@/lib/live-activities'
 import { isCalendarEventKind } from '@/lib/calendar-event'
@@ -19,6 +14,11 @@ import nip66Service from '@/services/nip66.service'
 import { navigationEventStore } from '@/services/navigation-event-store'
 import { useViewerInboxRelayUrls } from '@/hooks/useViewerInboxRelayUrls'
 import { feedRelayPolicyUrls } from '@/features/feed/relay-policy'
+import {
+  getAggrAwareSearchRelayUrls,
+  syncViewerRelayStackNostrLandAggrEligible,
+  urlsForViewerNostrLandAggrEligibilitySync
+} from '@/lib/nostr-land-relay-eligibility'
 import { sanitizeRelayUrlsForFetch } from '@/lib/read-only-relay-personal'
 import { useFavoriteRelays } from '@/providers/favorite-relays-context'
 import { useDeletedEvent } from '@/providers/DeletedEventProvider'
@@ -234,6 +234,15 @@ function EmbeddedNoteFetched({
         .filter((url): url is string => Boolean(url)),
     [favoriteRelays, blockedRelays]
   )
+  useEffect(() => {
+    syncViewerRelayStackNostrLandAggrEligible(
+      urlsForViewerNostrLandAggrEligibilitySync({
+        favoriteRelayUrls: favoriteRelays,
+        relayListRead: inboxRelayUrls
+      })
+    )
+  }, [favoriteRelays, inboxRelayUrls])
+
   const wideRelaysStatic = useMemo(
     () =>
       buildEmbedWideRelayUrlsStatic(
@@ -303,27 +312,31 @@ function EmbeddedNoteFetched({
     }
 
     const runParallelFetch = async () => {
-      const { fetchRelayOpts: opts } = embedFetchCtxRef.current
+      const { fetchRelayOpts: opts, wideRelaysStatic: wideUrls } = embedFetchCtxRef.current
       const hex = hexEventIdFromNoteId(noteKey)
       const isUsable = (e: Event) =>
         !isEventDeletedRef.current(e) && !shouldDropEventOnIngest(e)
-      const chosen = await firstResolvedUsableEmbedEvent(
-        [
-          () => client.fetchEvent(noteKey, opts),
-          () =>
-            hex && /^[0-9a-f]{64}$/i.test(hex)
-              ? indexedDb
-                  .getEventFromPublicationStore(hex.toLowerCase())
-                  .catch(() => undefined)
-              : Promise.resolve(undefined)
-        ],
-        isUsable
-      )
-      if (cancelled) return
-      if (chosen) {
-        resolve(chosen)
+      try {
+        const chosen = await firstResolvedUsableEmbedEvent(
+          [
+            () => promiseWithTimeout(client.fetchEvent(noteKey, opts), 12_000),
+            () =>
+              hex && /^[0-9a-f]{64}$/i.test(hex)
+                ? indexedDb
+                    .getEventFromPublicationStore(hex.toLowerCase())
+                    .catch(() => undefined)
+                : Promise.resolve(undefined),
+            () => runWidePass(wideUrls)
+          ],
+          isUsable
+        )
+        if (cancelled) return
+        if (chosen) {
+          resolve(chosen)
+        }
+      } finally {
+        if (!cancelled) setIsFetching(false)
       }
-      setIsFetching(false)
     }
 
     if (tryShortcuts()) {
@@ -348,6 +361,7 @@ function EmbeddedNoteFetched({
       )
       if (cancelled || !ev) return
       resolve(ev)
+      if (!cancelled) setIsFetching(false)
     })()
 
     if (eventRef.current) {
@@ -543,10 +557,10 @@ function buildEmbedWideRelayUrlsStatic(
           source: 'fallback',
           urls: preferPublicIndexRelaysFirst(
             dedupeRelayUrls([
+              ...getAggrAwareSearchRelayUrls(),
               ...relayHintsFromParent,
               ...viewerInboxRelayUrls,
               ...nip66Service.getSearchableRelayUrls(),
-              ...SEARCHABLE_RELAY_URLS,
               ...FAST_READ_RELAY_URLS,
               ...PROFILE_RELAY_URLS,
               ...menuRelayUrls
@@ -626,6 +640,15 @@ async function loadAsyncEmbedRelayHints(noteId: string, containingEvent?: Event)
   return dedupeRelayUrls(hintRelays)
 }
 
+function promiseWithTimeout<T>(promise: Promise<T>, ms: number): Promise<T | undefined> {
+  return Promise.race([
+    promise.catch(() => undefined),
+    new Promise<undefined>((resolve) => {
+      setTimeout(() => resolve(undefined), ms)
+    })
+  ])
+}
+
 /** Resolve as soon as any fetch path returns a usable event (do not wait for slow wide-relay fan-out). */
 function firstResolvedUsableEmbedEvent(
   tasks: Array<() => Promise<Event | undefined>>,
diff --git a/src/components/ParentNotePreview/index.tsx b/src/components/ParentNotePreview/index.tsx
index 6e7bd274..46ee72fb 100644
--- a/src/components/ParentNotePreview/index.tsx
+++ b/src/components/ParentNotePreview/index.tsx
@@ -1,6 +1,7 @@
 import { Skeleton } from '@/components/ui/skeleton'
-import { SEARCHABLE_RELAY_URLS } from '@/constants'
 import { useFetchEvent } from '@/hooks'
+import { getAggrAwareSearchRelayUrls } from '@/lib/nostr-land-relay-eligibility'
+import { sanitizeRelayUrlsForFetch } from '@/lib/read-only-relay-personal'
 import { cn } from '@/lib/utils'
 import client from '@/services/client.service'
 import { useTranslation } from 'react-i18next'
@@ -42,7 +43,10 @@ export default function ParentNotePreview({
 
     setIsFetchingFallback(true)
     try {
-      const foundEvent = await client.fetchEventWithExternalRelays(eventId, SEARCHABLE_RELAY_URLS)
+      const foundEvent = await client.fetchEventWithExternalRelays(
+        eventId,
+        sanitizeRelayUrlsForFetch(getAggrAwareSearchRelayUrls())
+      )
       if (foundEvent) {
         client.addEventToCache(foundEvent)
         setFallbackEvent(foundEvent)
diff --git a/src/components/RelayIcon/index.tsx b/src/components/RelayIcon/index.tsx
index 2d82b15f..9af94e91 100644
--- a/src/components/RelayIcon/index.tsx
+++ b/src/components/RelayIcon/index.tsx
@@ -1,6 +1,10 @@
 import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar'
 import { useFetchRelayInfo } from '@/hooks'
-import { getRelayIconOverrideSrc, relayUrlFingerprintColors } from '@/lib/relay-icon-source'
+import {
+  getRelayIconFallbackGlyph,
+  getRelayIconOverrideSrc,
+  relayUrlFingerprintColors
+} from '@/lib/relay-icon-source'
 import { cn } from '@/lib/utils'
 import type { TRelayInfo } from '@/types'
 import { Server } from 'lucide-react'
@@ -72,6 +76,7 @@ export default function RelayIcon({
   }, [url, relayInfo])
 
   const fallbackColors = useMemo(() => relayUrlFingerprintColors(url), [url])
+  const fallbackGlyph = useMemo(() => getRelayIconFallbackGlyph(url), [url])
 
   return (
     <Avatar className={cn('w-6 h-6', className)}>
@@ -86,7 +91,17 @@ export default function RelayIcon({
         className="bg-transparent"
         style={{ backgroundColor: fallbackColors.background, color: fallbackColors.color }}
       >
-        <Server size={iconSize} className="opacity-95" aria-hidden />
+        {fallbackGlyph ? (
+          <span
+            className="leading-none select-none"
+            style={{ fontSize: Math.max(12, iconSize + 4) }}
+            aria-hidden
+          >
+            {fallbackGlyph}
+          </span>
+        ) : (
+          <Server size={iconSize} className="opacity-95" aria-hidden />
+        )}
       </AvatarFallback>
     </Avatar>
   )
diff --git a/src/components/SearchBar/index.tsx b/src/components/SearchBar/index.tsx
index b28f1c2a..7b2e2b8a 100644
--- a/src/components/SearchBar/index.tsx
+++ b/src/components/SearchBar/index.tsx
@@ -4,7 +4,7 @@ import { toNote, toNoteList } from '@/lib/link'
 import client from '@/services/client.service'
 import { eventService } from '@/services/client.service'
 import { randomString } from '@/lib/random'
-import { isHttpRelayUrl, isWebsocketUrl, normalizeAnyRelayUrl } from '@/lib/url'
+import { isKind10243HttpRelayTagUrl, isWebsocketUrl, normalizeAnyRelayUrl, normalizeHttpRelayUrl } from '@/lib/url'
 import { normalizeToDTag } from '@/lib/search-parser'
 import { cn } from '@/lib/utils'
 import { useSmartNoteNavigation, useSmartHashtagNavigation } from '@/PageManager'
@@ -56,8 +56,8 @@ const SearchBar = forwardRef<
       return undefined
     }
     try {
-      const n = normalizeAnyRelayUrl(input)
-      if (!n || (!isHttpRelayUrl(n) && !isWebsocketUrl(n))) return undefined
+      const n = normalizeAnyRelayUrl(input) || normalizeHttpRelayUrl(input)
+      if (!n || (!isWebsocketUrl(n) && !isKind10243HttpRelayTagUrl(n))) return undefined
       return n
     } catch {
       return undefined
diff --git a/src/components/SessionRelaysTab/index.tsx b/src/components/SessionRelaysTab/index.tsx
index 83e375a6..ff6e0baf 100644
--- a/src/components/SessionRelaysTab/index.tsx
+++ b/src/components/SessionRelaysTab/index.tsx
@@ -4,7 +4,7 @@ import {
   isRelayStrikeEntryActive,
   type RelayStrikeDebugSnapshot
 } from '@/lib/relay-strikes'
-import { isHttpRelayUrl } from '@/lib/url'
+import { isKind10243HttpRelayTagUrl } from '@/lib/url'
 import { useTranslation } from 'react-i18next'
 import { useCallback, useEffect, useMemo, useState } from 'react'
 import { RefreshCw, CheckCircle2, Zap, AlertTriangle } from 'lucide-react'
@@ -145,16 +145,13 @@ export default function SessionRelaysTab() {
     for (const tag of httpRelayListEvent.tags) {
       if (tag[0] !== 'r' || !tag[1]) continue
       const raw = tag[1].trim()
-      if (!isHttpRelayUrl(raw)) continue
+      if (!isKind10243HttpRelayTagUrl(raw)) continue
       out.add(formatRelayAddress(raw).toLowerCase())
     }
     return out
   }, [httpRelayListEvent])
 
   const isHttpRelayEntry = (url: string): boolean => {
-    if (isHttpRelayUrl(url)) return true
-    const infoUrl = relayInfoByUrl[url]?.url
-    if (infoUrl && isHttpRelayUrl(infoUrl)) return true
     return configuredHttpRelayAddresses.has(formatRelayAddress(url).toLowerCase())
   }
 
diff --git a/src/features/feed/descriptor.ts b/src/features/feed/descriptor.ts
index ab2adac6..1002b1df 100644
--- a/src/features/feed/descriptor.ts
+++ b/src/features/feed/descriptor.ts
@@ -1,4 +1,4 @@
-import { normalizeAnyRelayUrl } from '@/lib/url'
+import { canonicalRelaySessionKey, normalizeAnyRelayUrl } from '@/lib/url'
 import type { TFeedSubRequest, TSubRequestFilter } from '@/types'
 import type { Filter } from 'nostr-tools'
 
@@ -92,12 +92,7 @@ export function canonicalFeedFilter(filter: Omit<Filter, 'since' | 'until'> | TS
 
 export function canonicalRelayUrls(urls: readonly string[]): string[] {
   return Array.from(
-    new Set(
-      urls
-        .map((u) => normalizeAnyRelayUrl(u) || u.trim())
-        .filter(Boolean)
-        .map((u) => u.toLowerCase())
-    )
+    new Set(urls.map((u) => canonicalRelaySessionKey(u)).filter(Boolean))
   ).sort((a, b) => a.localeCompare(b))
 }
 
diff --git a/src/features/feed/relay-policy.ts b/src/features/feed/relay-policy.ts
index f7890c6a..d51fb6ce 100644
--- a/src/features/feed/relay-policy.ts
+++ b/src/features/feed/relay-policy.ts
@@ -11,7 +11,7 @@ import {
   relayUrlsStripExtendedTagReqBlocked
 } from '@/lib/relay-extended-tag-req-blocks'
 import { isRelayBlockedByUser } from '@/lib/relay-blocked'
-import { isLocalNetworkUrl, normalizeAnyRelayUrl } from '@/lib/url'
+import { isLocalNetworkUrl, normalizeAnyRelayUrl, normalizeHttpRelayUrl } from '@/lib/url'
 import type { TSubRequestFilter } from '@/types'
 
 export type FeedRelayOperation = 'read' | 'write' | 'publish-picker' | 'favorites-feed'
@@ -92,16 +92,17 @@ export type FeedRelayPolicyResult = {
   dropped: FeedRelayDrop[]
 }
 
-function canonicalRelayUrl(url: string | undefined | null): string {
-  return (normalizeAnyRelayUrl(url ?? '') || (url ?? '').trim()).toLowerCase()
+function canonicalRelayUrl(url: string | undefined | null, layerSource?: FeedRelayLayerSource | string): string {
+  return normalizedRelayUrl(url ?? '', layerSource).toLowerCase()
 }
 
-function normalizedRelayUrl(url: string): string {
+function normalizedRelayUrl(url: string, layerSource?: FeedRelayLayerSource | string): string {
+  if (layerSource === 'http-index') return normalizeHttpRelayUrl(url) || url.trim()
   return normalizeAnyRelayUrl(url) || url.trim()
 }
 
 function normalizedSet(urls: readonly string[] | undefined): Set<string> {
-  return new Set((urls ?? []).map(canonicalRelayUrl).filter(Boolean))
+  return new Set((urls ?? []).map((u) => canonicalRelayUrl(u)).filter(Boolean))
 }
 
 function shouldApplySocialFilter(ctx: FeedRelayPolicyContext): boolean {
@@ -172,8 +173,8 @@ export function applyFeedRelayPolicy(
 
   for (const layer of layers) {
     for (const raw of layer.urls) {
-      const normalized = normalizedRelayUrl(raw)
-      const key = canonicalRelayUrl(normalized)
+      const normalized = normalizedRelayUrl(raw, layer.source)
+      const key = canonicalRelayUrl(normalized, layer.source)
       if (!normalized || !key) {
         addDrop(dropped, raw, layer.source, 'invalid')
         continue
diff --git a/src/hooks/useFetchThreadContextEvent.tsx b/src/hooks/useFetchThreadContextEvent.tsx
index 3b636e26..c769ea57 100644
--- a/src/hooks/useFetchThreadContextEvent.tsx
+++ b/src/hooks/useFetchThreadContextEvent.tsx
@@ -1,4 +1,5 @@
-import { SEARCHABLE_RELAY_URLS, THREAD_CONTEXT_EVENT_FETCH_GLOBAL_TIMEOUT_MS } from '@/constants'
+import { THREAD_CONTEXT_EVENT_FETCH_GLOBAL_TIMEOUT_MS } from '@/constants'
+import { getAggrAwareSearchRelayUrls } from '@/lib/nostr-land-relay-eligibility'
 import { sanitizeRelayUrlsForFetch } from '@/lib/read-only-relay-personal'
 import { useFavoriteRelays } from '@/providers/FavoriteRelaysProvider'
 import { useDeletedEvent } from '@/providers/DeletedEventProvider'
@@ -124,13 +125,10 @@ export function useFetchThreadContextEvent(
           })
         ])
 
-        if (
-          !fetchedEvent &&
-          !searchableAttemptedRef.current &&
-          SEARCHABLE_RELAY_URLS.length > 0
-        ) {
+        const aggrAwareSearch = getAggrAwareSearchRelayUrls()
+        if (!fetchedEvent && !searchableAttemptedRef.current && aggrAwareSearch.length > 0) {
           searchableAttemptedRef.current = true
-          const searchable = sanitizeRelayUrlsForFetch([...SEARCHABLE_RELAY_URLS])
+          const searchable = sanitizeRelayUrlsForFetch(aggrAwareSearch)
           fetchedEvent = await Promise.race([
             client.fetchEventWithExternalRelays(eventId, searchable),
             new Promise<undefined>((resolve) => {
diff --git a/src/layouts/SecondaryPageLayout/index.tsx b/src/layouts/SecondaryPageLayout/index.tsx
index e01ff3fc..03ee63ee 100644
--- a/src/layouts/SecondaryPageLayout/index.tsx
+++ b/src/layouts/SecondaryPageLayout/index.tsx
@@ -44,7 +44,8 @@ const SecondaryPageLayout = forwardRef(
     const { isSmallScreen } = useScreenSize()
     const { currentIndex, pop } = useSecondaryPage()
     const [mobileSwipeRoot, setMobileSwipeRoot] = useState<HTMLElement | null>(null)
-    const mobileSwipeActive = isSmallScreen && currentIndex === index
+    const mobileSwipeActive =
+      isSmallScreen && (index === undefined || currentIndex === index)
     useMobileSwipeBackOnElement(mobileSwipeActive ? mobileSwipeRoot : null, pop, {
       enabled: mobileSwipeActive
     })
diff --git a/src/lib/event-metadata.ts b/src/lib/event-metadata.ts
index 770134f1..50c06c82 100644
--- a/src/lib/event-metadata.ts
+++ b/src/lib/event-metadata.ts
@@ -7,7 +7,14 @@ import { getAmountFromInvoice, getLightningAddressFromProfile } from './lightnin
 import { formatPubkey, pubkeyToNpub } from './pubkey'
 import { generateBech32IdFromATag, generateBech32IdFromETag, getImetaInfoFromImetaTag, tagNameEquals } from './tag'
 import { isRelayBlockedByUser } from '@/lib/relay-blocked'
-import { isHttpRelayUrl, isWebsocketUrl, normalizeAnyRelayUrl, normalizeHttpRelayUrl, normalizeHttpUrl, normalizeUrl } from './url'
+import {
+  isKind10243HttpRelayTagUrl,
+  isWebsocketUrl,
+  normalizeAnyRelayUrl,
+  normalizeHttpRelayUrl,
+  normalizeHttpUrl,
+  normalizeUrl
+} from './url'
 import { isTorBrowser } from './utils'
 import logger from '@/lib/logger'
 import { buildPaytoUri } from '@/lib/payto'
@@ -168,7 +175,7 @@ export function getHttpRelayListFromEvent(event?: Event | null, blockedRelays?:
   const torBrowserDetected = isTorBrowser()
   event.tags.filter(tagNameEquals('r')).forEach(([, url, type]) => {
     if (!url || typeof url !== 'string' || url.trim() === '') return
-    if (!isHttpRelayUrl(url)) return
+    if (!isKind10243HttpRelayTagUrl(url)) return
 
     const normalizedUrl = normalizeHttpRelayUrl(url)
     if (!normalizedUrl) return
diff --git a/src/lib/favorites-feed-relays.ts b/src/lib/favorites-feed-relays.ts
index ff6bc6e7..aee0813e 100644
--- a/src/lib/favorites-feed-relays.ts
+++ b/src/lib/favorites-feed-relays.ts
@@ -19,6 +19,7 @@ import {
 import { feedRelayPolicyUrls, type FeedRelayLayer } from '@/features/feed/relay-policy'
 import { stripMailboxLocalUrlsForRemoteViewers } from '@/lib/relay-list-sanitize'
 import { relaySessionStrikes } from '@/lib/relay-strikes'
+import { prependAggrNostrLandIfViewerEligible } from '@/lib/nostr-land-relay-eligibility'
 import { profileFetchRelayUrlsWithoutFastReadLayer } from '@/lib/viewer-relay-defaults'
 
 function isBlockedRelay(url: string, blockedRelays: string[]): boolean {
@@ -39,7 +40,7 @@ export function userReadRelaysWithHttp(
 ): string[] {
   const http = relayList?.httpRead ?? []
   const read = relayList?.read ?? []
-  return dedupeNormalizeRelayUrlsOrdered([...http, ...read])
+  return prependAggrNostrLandIfViewerEligible(dedupeNormalizeRelayUrlsOrdered([...http, ...read]))
 }
 
 export function getFavoritesFeedRelayUrls(
diff --git a/src/lib/feed-full-search-relays.ts b/src/lib/feed-full-search-relays.ts
index 1ce87e02..ccd7fadf 100644
--- a/src/lib/feed-full-search-relays.ts
+++ b/src/lib/feed-full-search-relays.ts
@@ -1,10 +1,10 @@
-import { SEARCHABLE_RELAY_URLS } from '@/constants'
 import { buildAccountListRelayUrlsForMerge } from '@/lib/account-list-relay-urls'
 import {
   getFavoritesFeedRelayUrls,
   mergeRelayUrlLayers
 } from '@/lib/favorites-feed-relays'
 import { buildComprehensiveRelayList } from '@/lib/relay-list-builder'
+import { getAggrAwareSearchRelayUrls } from '@/lib/nostr-land-relay-eligibility'
 import { normalizeUrl } from '@/lib/url'
 
 /**
@@ -23,8 +23,7 @@ export async function buildFeedFullSearchRelayUrls(options: {
   const blocked = blockedRelays ?? []
   const layers: string[][] = []
 
-  const searchable = SEARCHABLE_RELAY_URLS.map((u) => normalizeUrl(u) || u).filter(Boolean)
-  layers.push(searchable)
+  layers.push(getAggrAwareSearchRelayUrls().map((u) => normalizeUrl(u) || u).filter(Boolean))
 
   layers.push(getFavoritesFeedRelayUrls(favoriteRelays ?? [], blocked))
 
diff --git a/src/lib/home-feed-relays.ts b/src/lib/home-feed-relays.ts
index d119d54b..123530cd 100644
--- a/src/lib/home-feed-relays.ts
+++ b/src/lib/home-feed-relays.ts
@@ -2,33 +2,19 @@ import { MAX_REQ_RELAY_URLS } from '@/constants'
 import { feedRelayPolicyUrls } from '@/features/feed/relay-policy'
 import { getHttpRelayListFromEvent, getRelayListReadFromEventNoFastFallback } from '@/lib/event-metadata'
 import { getFavoritesFeedRelayUrls } from '@/lib/favorites-feed-relays'
-import { AGGR_NOSTR_LAND_WSS } from '@/lib/nostr-land-aggr'
-import { normalizeAnyRelayUrl } from '@/lib/url'
+import { relayUrlIsAggrNostrLand } from '@/lib/nostr-land-relay-eligibility'
 import { viewerUsesGlobalRelayDefaults } from '@/lib/viewer-relay-defaults'
 import type { Event } from 'nostr-tools'
 
-function relayUrlIsNostrLandAggr(url: string): boolean {
-  const raw = url.trim()
-  if (!raw) return false
-  const normalized = (normalizeAnyRelayUrl(raw) || raw).toLowerCase()
-  const aggrCanon = (normalizeAnyRelayUrl(AGGR_NOSTR_LAND_WSS) || AGGR_NOSTR_LAND_WSS).toLowerCase()
-  if (normalized === aggrCanon) return true
-  try {
-    const u = new URL(normalized)
-    return u.hostname.toLowerCase() === 'aggr.nostr.land'
-  } catch {
-    return /^wss:\/\/aggr\.nostr\.land\/?$/i.test(normalized)
-  }
-}
-
 /** Drop nostr.land aggregate from REQ stacks where it must not appear (e.g. home feeds). */
 export function stripNostrLandAggrFromRelayUrls(urls: readonly string[]): string[] {
-  return urls.filter((url) => !relayUrlIsNostrLandAggr(url))
+  return urls.filter((url) => !relayUrlIsAggrNostrLand(url))
 }
 
 /**
- * Home “Lieblings-Relays” feed must never open timeline REQs to nostr.land’s aggregate relay (reserved for
- * threads / profiles / spells). Strips aggr from every shard after mapping, including trailing-slash variants.
+ * Home timeline REQs (Notes, Replies, and Gallery tabs on `home-all-favorites`) must never hit aggr — only
+ * favorites + Wisp trending (+ widened read layers on Replies/Gallery without aggr). Side-panel threads,
+ * reply blurbs, backlinks, embeds, and profiles use {@link feedRelayPolicyUrls} / comprehensive lists instead.
  */
 export function stripNostrLandAggrFromTimelineSubRequests<T extends { urls: string[] }>(
   feedSubscriptionKey: string | undefined,
diff --git a/src/lib/index-relay-http.ts b/src/lib/index-relay-http.ts
index 226b705c..c257f463 100644
--- a/src/lib/index-relay-http.ts
+++ b/src/lib/index-relay-http.ts
@@ -174,7 +174,8 @@ function handleFilterTransportFailure(endpoint: string, err?: unknown): void {
     maybeLogDevIndexRelayUnreachableHint()
     return
   }
-  warnIndexRelayHttpThrottled(endpoint, '[IndexRelayHttp] filter request error', {
+  // CORS / offline index relays are optional; strikes will skip after repeated failures.
+  logger.debug('[IndexRelayHttp] filter transport failure', {
     endpoint,
     error: err ?? 'unreachable'
   })
diff --git a/src/lib/nostr-land-relay-eligibility.test.ts b/src/lib/nostr-land-relay-eligibility.test.ts
new file mode 100644
index 00000000..dd86e2b3
--- /dev/null
+++ b/src/lib/nostr-land-relay-eligibility.test.ts
@@ -0,0 +1,54 @@
+import { describe, expect, it, afterEach } from 'vitest'
+import { AGGR_NOSTR_LAND_WSS } from '@/lib/nostr-land-aggr'
+import {
+  filterAggrNostrLandUnlessViewerEligible,
+  getAggrAwareSearchRelayUrls,
+  getViewerNostrLandAggrSearchRelayUrls,
+  prependAggrNostrLandIfViewerEligible,
+  relayUrlsIncludeCanonicalNostrLandRelay,
+  syncViewerRelayStackNostrLandAggrEligible
+} from '@/lib/nostr-land-relay-eligibility'
+
+afterEach(() => {
+  syncViewerRelayStackNostrLandAggrEligible([])
+})
+
+describe('nostr.land aggr eligibility', () => {
+  it('enables aggr only when wss://nostr.land is on favorites or relay lists', () => {
+    expect(relayUrlsIncludeCanonicalNostrLandRelay(['wss://nostr.land/'])).toBe(true)
+    expect(relayUrlsIncludeCanonicalNostrLandRelay(['wss://aggr.nostr.land/'])).toBe(false)
+    expect(relayUrlsIncludeCanonicalNostrLandRelay(['wss://hist.nostr.land/'])).toBe(false)
+
+    syncViewerRelayStackNostrLandAggrEligible(['wss://nostr.land/'])
+    expect(getViewerNostrLandAggrSearchRelayUrls()[0]).toMatch(/^wss:\/\/aggr\.nostr\.land\/?$/)
+    expect(prependAggrNostrLandIfViewerEligible(['wss://inbox.example/'])[0]).toMatch(
+      /^wss:\/\/aggr\.nostr\.land\/?$/
+    )
+
+    syncViewerRelayStackNostrLandAggrEligible(['wss://relay.example/'])
+    expect(getViewerNostrLandAggrSearchRelayUrls()).toEqual([])
+    expect(prependAggrNostrLandIfViewerEligible(['wss://inbox.example/'])).toEqual([
+      'wss://inbox.example/'
+    ])
+  })
+
+  it('getAggrAwareSearchRelayUrls prepends aggr when eligible', () => {
+    syncViewerRelayStackNostrLandAggrEligible(['wss://nostr.land/'])
+    const urls = getAggrAwareSearchRelayUrls()
+    expect(urls[0]).toMatch(/^wss:\/\/aggr\.nostr\.land\/?$/)
+    expect(urls.length).toBeGreaterThan(1)
+
+    syncViewerRelayStackNostrLandAggrEligible([])
+    expect(getAggrAwareSearchRelayUrls().some((u) => /aggr\.nostr\.land/i.test(u))).toBe(false)
+  })
+
+  it('strips aggr from fetch stacks when viewer does not list nostr.land', () => {
+    syncViewerRelayStackNostrLandAggrEligible([])
+    expect(
+      filterAggrNostrLandUnlessViewerEligible([
+        'wss://relay.example/',
+        AGGR_NOSTR_LAND_WSS
+      ])
+    ).toEqual(['wss://relay.example/'])
+  })
+})
diff --git a/src/lib/nostr-land-relay-eligibility.ts b/src/lib/nostr-land-relay-eligibility.ts
index b2b29773..fdcac1d2 100644
--- a/src/lib/nostr-land-relay-eligibility.ts
+++ b/src/lib/nostr-land-relay-eligibility.ts
@@ -1,17 +1,36 @@
+import { SEARCHABLE_RELAY_URLS } from '@/constants'
 import { AGGR_NOSTR_LAND_WSS } from '@/lib/nostr-land-aggr'
 import { normalizeAnyRelayUrl } from '@/lib/url'
 
 /**
- * True when any URL’s host is `nostr.land` (e.g. `wss://nostr.land`, `wss://aggr.nostr.land`).
- * Used to decide whether read fetches should prepend {@link AGGR_NOSTR_LAND_WSS} (home OP / Replies / Gallery
-   * never prepend aggr via {@link FeedProvider}; side-panel threads, profiles, spells, and other reads still use it).
+ * True when the URL is `wss://aggr.nostr.land` (aggregator read/search endpoint).
  */
-export function relayUrlsMentionNostrLandDomain(urls: readonly string[]): boolean {
+export function relayUrlIsAggrNostrLand(url: string): boolean {
+  const raw = url.trim()
+  if (!raw) return false
+  const normalized = (normalizeAnyRelayUrl(raw) || raw).toLowerCase()
+  const aggrCanon = (normalizeAnyRelayUrl(AGGR_NOSTR_LAND_WSS) || AGGR_NOSTR_LAND_WSS).toLowerCase()
+  if (normalized === aggrCanon) return true
+  try {
+    const u = new URL(normalized.replace(/^ws:\/\//i, 'http://').replace(/^wss:\/\//i, 'https://'))
+    return u.hostname.toLowerCase() === 'aggr.nostr.land'
+  } catch {
+    return /^wss:\/\/aggr\.nostr\.land\/?$/i.test(normalized)
+  }
+}
+
+/**
+ * True when any URL is the canonical nostr.land **inbox** relay (`wss://nostr.land`), i.e. host `nostr.land`
+ * exactly — not `aggr.nostr.land`, `hist.nostr.land`, or other subdomains.
+ */
+export function relayUrlsIncludeCanonicalNostrLandRelay(urls: readonly string[]): boolean {
   return urls.some((url) => {
     const normalized = normalizeAnyRelayUrl(url) || String(url).trim()
     if (!normalized) return false
     try {
-      const parsed = new URL(normalized.replace(/^ws:\/\//i, 'http://').replace(/^wss:\/\//i, 'https://'))
+      const parsed = new URL(
+        normalized.replace(/^ws:\/\//i, 'http://').replace(/^wss:\/\//i, 'https://')
+      )
       return parsed.hostname.toLowerCase() === 'nostr.land'
     } catch {
       return false
@@ -19,14 +38,19 @@ export function relayUrlsMentionNostrLandDomain(urls: readonly string[]): boolea
   })
 }
 
+/** @deprecated Use {@link relayUrlsIncludeCanonicalNostrLandRelay}. */
+export function relayUrlsMentionNostrLandDomain(urls: readonly string[]): boolean {
+  return relayUrlsIncludeCanonicalNostrLandRelay(urls)
+}
+
 let viewerStackMentionsNostrLand = false
 
 /**
- * Synced from the logged-in viewer’s relay stack (favorites, relay sets, NIP-65, cache, HTTP lists).
- * Service-layer reads use {@link getViewerRelayStackNostrLandAggrEligible} when building REQ targets.
+ * Synced from the logged-in viewer’s favorites and NIP-65 / cache / HTTP relay lists.
+ * When true, {@link AGGR_NOSTR_LAND_WSS} is treated as a search relay and inbox-tier read relay.
  */
 export function syncViewerRelayStackNostrLandAggrEligible(urls: readonly string[]): boolean {
-  viewerStackMentionsNostrLand = relayUrlsMentionNostrLandDomain(urls)
+  viewerStackMentionsNostrLand = relayUrlsIncludeCanonicalNostrLandRelay(urls)
   return viewerStackMentionsNostrLand
 }
 
@@ -34,6 +58,56 @@ export function getViewerRelayStackNostrLandAggrEligible(): boolean {
   return viewerStackMentionsNostrLand
 }
 
+/** Aggr URL to merge into NIP-50 / searchable relay sets when the viewer lists `wss://nostr.land`. */
+export function getViewerNostrLandAggrSearchRelayUrls(): string[] {
+  if (!viewerStackMentionsNostrLand) return []
+  const n = normalizeAnyRelayUrl(AGGR_NOSTR_LAND_WSS) || AGGR_NOSTR_LAND_WSS
+  return n ? [n] : []
+}
+
+/**
+ * Search / wide-id fetch relays: aggr first when eligible, then {@link SEARCHABLE_RELAY_URLS}.
+ * Use for reply-to blurbs, thread parent/root fallback, embed wide pass, etc. — not home timeline OP REQs.
+ */
+export function getAggrAwareSearchRelayUrls(): string[] {
+  const seen = new Set<string>()
+  const out: string[] = []
+  const add = (raw: string) => {
+    const n = normalizeAnyRelayUrl(raw) || raw.trim()
+    if (!n) return
+    const k = n.toLowerCase()
+    if (seen.has(k)) return
+    seen.add(k)
+    out.push(n)
+  }
+  for (const u of getViewerNostrLandAggrSearchRelayUrls()) add(u)
+  for (const u of SEARCHABLE_RELAY_URLS) add(u)
+  return out
+}
+
+/** Drop aggr unless the viewer has `wss://nostr.land` on favorites or relay lists. */
+export function filterAggrNostrLandUnlessViewerEligible(urls: readonly string[]): string[] {
+  if (viewerStackMentionsNostrLand) return [...urls]
+  return urls.filter((u) => !relayUrlIsAggrNostrLand(u))
+}
+
+/** URLs to pass to {@link syncViewerRelayStackNostrLandAggrEligible} (favorites + NIP-65 + cache + HTTP lists). */
+export function urlsForViewerNostrLandAggrEligibilitySync(options: {
+  favoriteRelayUrls?: readonly string[]
+  relayListRead?: readonly string[]
+  relayListWrite?: readonly string[]
+  cacheRelayRead?: readonly string[]
+  httpRelayRead?: readonly string[]
+}): string[] {
+  return [
+    ...(options.favoriteRelayUrls ?? []),
+    ...(options.relayListRead ?? []),
+    ...(options.relayListWrite ?? []),
+    ...(options.cacheRelayRead ?? []),
+    ...(options.httpRelayRead ?? [])
+  ]
+}
+
 /** Deduped prepend of aggr when the viewer opted into nostr.land relays (see sync…). */
 export function prependAggrNostrLandIfViewerEligible(relayUrls: readonly string[]): string[] {
   if (!viewerStackMentionsNostrLand) return [...relayUrls]
diff --git a/src/lib/read-only-relay-personal.test.ts b/src/lib/read-only-relay-personal.test.ts
index e95d44c5..780c4173 100644
--- a/src/lib/read-only-relay-personal.test.ts
+++ b/src/lib/read-only-relay-personal.test.ts
@@ -1,15 +1,22 @@
-import { describe, expect, it, beforeEach } from 'vitest'
+import { describe, expect, it, beforeEach, afterEach } from 'vitest'
 import { AGGR_NOSTR_LAND_WSS } from '@/lib/nostr-land-aggr'
+import { syncViewerRelayStackNostrLandAggrEligible } from '@/lib/nostr-land-relay-eligibility'
 import {
   buildPersonalRelayKeySet,
   filterReadOnlyRelaysUnlessPersonal,
   isPersonalListRequiredReadOnlyRelay,
+  sanitizeRelayUrlsForFetch,
   setViewerPersonalRelayKeys
 } from './read-only-relay-personal'
 
 describe('read-only-relay-personal', () => {
   beforeEach(() => {
     setViewerPersonalRelayKeys(new Set())
+    syncViewerRelayStackNostrLandAggrEligible([])
+  })
+
+  afterEach(() => {
+    syncViewerRelayStackNostrLandAggrEligible([])
   })
 
   it('requires personal list only for filter.nostr.wine', () => {
@@ -19,7 +26,7 @@ describe('read-only-relay-personal', () => {
     expect(isPersonalListRequiredReadOnlyRelay('wss://search.nos.today/')).toBe(false)
   })
 
-  it('strips unlisted filter.nostr.wine but keeps aggr and search indexers', () => {
+  it('strips unlisted filter.nostr.wine but keeps search indexers; aggr only when nostr.land is listed', () => {
     const urls = [
       'wss://relay.damus.io/',
       'wss://filter.nostr.wine/',
@@ -31,6 +38,16 @@ describe('read-only-relay-personal', () => {
       AGGR_NOSTR_LAND_WSS,
       'wss://search.nos.today/'
     ])
+    expect(sanitizeRelayUrlsForFetch(urls)).toEqual([
+      'wss://relay.damus.io/',
+      'wss://search.nos.today/'
+    ])
+    syncViewerRelayStackNostrLandAggrEligible(['wss://nostr.land/'])
+    expect(sanitizeRelayUrlsForFetch(urls).map((u) => u.replace(/\/$/, ''))).toEqual([
+      'wss://relay.damus.io',
+      'wss://aggr.nostr.land',
+      'wss://search.nos.today'
+    ])
   })
 
   it('keeps filter.nostr.wine when on the viewer personal list', () => {
diff --git a/src/lib/read-only-relay-personal.ts b/src/lib/read-only-relay-personal.ts
index c90b52c7..015f9259 100644
--- a/src/lib/read-only-relay-personal.ts
+++ b/src/lib/read-only-relay-personal.ts
@@ -1,4 +1,5 @@
 import { READ_ONLY_PERSONAL_LIST_REQUIRED_RELAY_URLS } from '@/constants'
+import { filterAggrNostrLandUnlessViewerEligible } from '@/lib/nostr-land-relay-eligibility'
 import { urlIsNonLocalForRemoteViewer } from '@/lib/relay-list-sanitize'
 import { normalizeAnyRelayUrl } from '@/lib/url'
 
@@ -81,5 +82,7 @@ export function sanitizeRelayUrlsForFetch(
     const key = relayUrlKey(u)
     return key.length > 0 && keys.has(key)
   })
-  return filterReadOnlyRelaysUnlessPersonal(withoutThirdPartyLocals, keys)
+  return filterAggrNostrLandUnlessViewerEligible(
+    filterReadOnlyRelaysUnlessPersonal(withoutThirdPartyLocals, keys)
+  )
 }
diff --git a/src/lib/relay-icon-source.test.ts b/src/lib/relay-icon-source.test.ts
new file mode 100644
index 00000000..233795be
--- /dev/null
+++ b/src/lib/relay-icon-source.test.ts
@@ -0,0 +1,14 @@
+import { describe, expect, it } from 'vitest'
+import { getRelayIconFallbackGlyph, getRelayIconOverrideSrc } from '@/lib/relay-icon-source'
+
+describe('relay icon branding', () => {
+  it('uses favicon override for sovbit hosts', () => {
+    expect(getRelayIconOverrideSrc('wss://nostr.sovbit.host/')).toContain('nostr.sovbit.host')
+    expect(getRelayIconOverrideSrc('wss://freelay.sovbit.host/')).toContain('freelay.sovbit.host')
+  })
+
+  it('uses purple circle fallback glyph for purplepag.es', () => {
+    expect(getRelayIconFallbackGlyph('wss://purplepag.es/')).toBe('🟣')
+    expect(getRelayIconOverrideSrc('wss://purplepag.es/')).toBeUndefined()
+  })
+})
diff --git a/src/lib/relay-icon-source.ts b/src/lib/relay-icon-source.ts
index f57eb309..9743fdce 100644
--- a/src/lib/relay-icon-source.ts
+++ b/src/lib/relay-icon-source.ts
@@ -53,6 +53,17 @@ export function getRelayIconOverrideSrc(url: string | undefined): string | undef
   return undefined
 }
 
+/**
+ * Unicode fallback when NIP-11 / favicon is missing or failed to load (shown in {@link RelayIcon}).
+ * Sovbit hosts use {@link getRelayIconOverrideSrc} favicons instead; purplepag uses the purple circle.
+ */
+export function getRelayIconFallbackGlyph(url: string | undefined): string | undefined {
+  const host = parseRelayHostname(url ?? '')
+  if (!host) return undefined
+  if (host === 'purplepag.es') return '🟣'
+  return undefined
+}
+
 /** FNV-1a-ish fingerprint → HSL for a per-relay fallback swatch (no network). */
 export function relayUrlFingerprintColors(url: string | undefined): {
   background: string
diff --git a/src/lib/relay-list-builder.ts b/src/lib/relay-list-builder.ts
index 149ca08c..9afbaf2c 100644
--- a/src/lib/relay-list-builder.ts
+++ b/src/lib/relay-list-builder.ts
@@ -13,7 +13,14 @@ import { FAST_READ_RELAY_URLS, PROFILE_RELAY_URLS, SEARCHABLE_RELAY_URLS } from
 import { feedRelayPolicyUrls } from '@/features/feed/relay-policy'
 import { mergeRelayUrlLayers, userReadRelaysWithHttp } from '@/lib/favorites-feed-relays'
 import { urlIsNonLocalForRemoteViewer } from '@/lib/relay-list-sanitize'
-import { isHttpRelayUrl, normalizeAnyRelayUrl, normalizeUrl } from '@/lib/url'
+import {
+  canonicalRelaySessionKey,
+  httpIndexRelayBasesInUrlBatch,
+  isKind10243HttpRelayTagUrl,
+  normalizeAnyRelayUrl,
+  normalizeHttpRelayUrl,
+  normalizeUrl
+} from '@/lib/url'
 import { buildPersonalRelayKeySet, sanitizeRelayUrlsForFetch } from '@/lib/read-only-relay-personal'
 import { getCacheRelayUrls } from './private-relays'
 import { defaultFavoriteRelaysForViewer, viewerUsesGlobalRelayDefaults } from '@/lib/viewer-relay-defaults'
@@ -25,7 +32,7 @@ import type { Event } from 'nostr-tools'
 export const AUTHOR_NIP65_RELAY_CAP = 2
 
 function relayKey(url: string): string {
-  return (normalizeAnyRelayUrl(url) || url.trim()).toLowerCase()
+  return canonicalRelaySessionKey(url)
 }
 
 /**
@@ -65,7 +72,7 @@ function dedupeNormalizedRelayUrls(urls: string[]): string[] {
   const seen = new Set<string>()
   const out: string[] = []
   for (const u of urls) {
-    if (isHttpRelayUrl(u)) continue
+    if (isKind10243HttpRelayTagUrl(u)) continue
     const n = normalizeAnyRelayUrl(u) || u.trim()
     if (!n || seen.has(n)) continue
     seen.add(n)
@@ -166,8 +173,8 @@ export async function buildComprehensiveRelayList(options: RelayListBuilderOptio
 
   const addRelay = (url: string | undefined) => {
     if (!url) return
-    // This builder feeds WebSocket REQ/publish lists; keep HTTP relays separate.
-    if (isHttpRelayUrl(url)) return
+    // This builder feeds WebSocket REQ/publish lists; kind 10243 HTTP index relays use addHttpRelay.
+    if (isKind10243HttpRelayTagUrl(url)) return
     const normalized = normalizeAnyRelayUrl(url)
     if (!normalized) return
     // Filter blocked (case-insensitive comparison)
@@ -182,8 +189,8 @@ export async function buildComprehensiveRelayList(options: RelayListBuilderOptio
   }
 
   const addHttpRelay = (url: string | undefined) => {
-    if (!url || !isHttpRelayUrl(url)) return
-    const normalized = normalizeAnyRelayUrl(url) || url.trim()
+    if (!url) return
+    const normalized = normalizeHttpRelayUrl(url)
     if (!normalized || normalizedBlocked.has(normalized.toLowerCase())) return
     if (httpRelayUrls.some((u) => relayKey(u) === relayKey(normalized))) return
     httpRelayUrls.push(normalized)
@@ -424,8 +431,18 @@ export async function buildProfileAndUserRelayList(
     includeViewerHttpIndexRelays: true,
     blockedRelays
   })
-  const httpPart = userStack.filter((u) => isHttpRelayUrl(u))
-  const wsPart = userStack.filter((u) => !isHttpRelayUrl(u))
+  let httpBases: string[] = []
+  try {
+    const rl = await client.peekRelayListFromStorage(userPubkey)
+    httpBases = [...(rl?.httpRead ?? []), ...(rl?.httpWrite ?? [])]
+      .map((u) => normalizeHttpRelayUrl(u) || u)
+      .filter(Boolean)
+  } catch {
+    httpBases = []
+  }
+  const httpPart = httpIndexRelayBasesInUrlBatch(userStack, httpBases)
+  const httpKeys = new Set(httpPart.map((u) => relayKey(u)))
+  const wsPart = userStack.filter((u) => !httpKeys.has(relayKey(u)))
   const seen = new Set<string>()
   const mergedWs: string[] = []
   for (const u of [...profileWs, ...wsPart]) {
@@ -545,7 +562,7 @@ export async function buildPollResultsReadRelayUrls(options: {
 
   const pushLayer = (urls: string[]) => {
     for (const raw of urls) {
-      if (isHttpRelayUrl(raw)) continue
+      if (isKind10243HttpRelayTagUrl(raw)) continue
       const normalized = normalizeUrl(raw) || raw?.trim()
       if (!normalized || normalizedBlocked.has(normalized.toLowerCase())) continue
       if (seenNorm.has(normalized)) continue
diff --git a/src/lib/relay-list-sanitize.ts b/src/lib/relay-list-sanitize.ts
index 3dd62add..c05ea3ab 100644
--- a/src/lib/relay-list-sanitize.ts
+++ b/src/lib/relay-list-sanitize.ts
@@ -1,4 +1,4 @@
-import { isHttpRelayUrl, isLocalNetworkUrl, normalizeAnyRelayUrl, normalizeUrl } from '@/lib/url'
+import { isLocalNetworkUrl, normalizeAnyRelayUrl, normalizeHttpRelayUrl, normalizeUrl } from '@/lib/url'
 import type { TMailboxRelay, TMailboxRelayScope, TRelayList } from '@/types'
 
 /** True if this URL is not loopback / LAN (safe to open from another user's browser as a REQ target). */
@@ -44,17 +44,21 @@ export function stripMailboxLocalUrlsForRemoteViewers(list: {
  * Still use when merging **another user's** 10002 so we never open their LAN relays.
  */
 export function stripLocalNetworkRelaysFromRelayList(list: TRelayList): TRelayList {
-  const keepUrl = (u: string): boolean => {
-    const n = isHttpRelayUrl(u) ? normalizeAnyRelayUrl(u) || u : normalizeUrl(u) || u
-    return Boolean(n && !isLocalNetworkUrl(isHttpRelayUrl(u) ? u : n))
+  const keepWsUrl = (u: string): boolean => {
+    const n = normalizeUrl(u) || u
+    return Boolean(n && !isLocalNetworkUrl(n))
+  }
+  const keepHttpIndexUrl = (u: string): boolean => {
+    const n = normalizeHttpRelayUrl(u) || u
+    return Boolean(n && !isLocalNetworkUrl(n))
   }
   return {
-    write: list.write.filter(keepUrl),
-    read: list.read.filter(keepUrl),
-    originalRelays: list.originalRelays.filter((r) => keepUrl(r.url)),
-    httpWrite: (list.httpWrite ?? []).filter(keepUrl),
-    httpRead: (list.httpRead ?? []).filter(keepUrl),
-    httpOriginalRelays: (list.httpOriginalRelays ?? []).filter((r) => keepUrl(r.url))
+    write: list.write.filter(keepWsUrl),
+    read: list.read.filter(keepWsUrl),
+    originalRelays: list.originalRelays.filter((r) => keepWsUrl(r.url)),
+    httpWrite: (list.httpWrite ?? []).filter(keepHttpIndexUrl),
+    httpRead: (list.httpRead ?? []).filter(keepHttpIndexUrl),
+    httpOriginalRelays: (list.httpOriginalRelays ?? []).filter((r) => keepHttpIndexUrl(r.url))
   }
 }
 
@@ -66,7 +70,7 @@ export function stripLocalNetworkRelaysForWssReq(urls: readonly string[]): strin
   const seen = new Set<string>()
   const out: string[] = []
   for (const raw of urls) {
-    if (isHttpRelayUrl(raw)) continue
+    if (/^https?:\/\//i.test(raw.trim())) continue
     const n = normalizeAnyRelayUrl(raw) || raw.trim()
     if (!n || isLocalNetworkUrl(n)) continue
     const key = (normalizeUrl(n) || n).toLowerCase()
@@ -80,7 +84,9 @@ export function stripLocalNetworkRelaysForWssReq(urls: readonly string[]): strin
 const normRelayKey = (u: string): string => {
   const t = typeof u === 'string' ? u.trim() : ''
   if (!t) return ''
-  return (isHttpRelayUrl(t) ? normalizeAnyRelayUrl(t) : normalizeUrl(t)) || t
+  if (/^wss?:\/\//i.test(t)) return normalizeUrl(t) || t
+  if (/^https?:\/\//i.test(t)) return normalizeHttpRelayUrl(t) || t
+  return normalizeUrl(t) || normalizeHttpRelayUrl(t) || t
 }
 
 /**
diff --git a/src/lib/relay-strikes.ts b/src/lib/relay-strikes.ts
index ae7b3cb2..f65586f1 100644
--- a/src/lib/relay-strikes.ts
+++ b/src/lib/relay-strikes.ts
@@ -7,7 +7,7 @@ import {
 import type { Event } from 'nostr-tools'
 import { getRelayListFromEvent } from '@/lib/event-metadata'
 import logger from '@/lib/logger'
-import { canonicalRelaySessionKey, isHttpRelayUrl } from '@/lib/url'
+import { canonicalRelaySessionKey, httpIndexRelayBasesInUrlBatch } from '@/lib/url'
 import type { RelayOpTerminalRow } from '@/services/relay-operation-log.service'
 
 /** Conservative: 5 read/publish failures → skip until this many ms after last qualifying failure. */
@@ -189,7 +189,7 @@ class RelaySessionStrikes {
     e.readFailures += 1
     if (e.readFailures >= STRIKE_FAILURES_THRESHOLD) {
       e.readStrikeSkipUntil = Math.max(e.readStrikeSkipUntil, now + STRIKE_COOLDOWN_MS)
-      logger.warn('[RelayStrikes] read path strike skip', { key, readFailures: e.readFailures })
+      logger.debug('[RelayStrikes] read path strike skip', { key, readFailures: e.readFailures })
     }
   }
 
@@ -301,9 +301,10 @@ class RelaySessionStrikes {
     return out.length > 0 ? out : [...urls]
   }
 
-  filterReadHttpUrls(urls: readonly string[]): string[] {
-    const ws = urls.filter((u) => !isHttpRelayUrl(u))
-    const http = urls.filter((u) => isHttpRelayUrl(u))
+  filterReadHttpUrls(urls: readonly string[], httpIndexBases: readonly string[] = []): string[] {
+    const http = httpIndexRelayBasesInUrlBatch(urls, httpIndexBases)
+    const httpKeys = new Set(http.map((u) => canonicalRelaySessionKey(u)))
+    const ws = urls.filter((u) => !httpKeys.has(canonicalRelaySessionKey(u)))
     const singleWsRelay = ws.length <= 1
     const wsOut = singleWsRelay ? [...ws] : ws.filter((u) => !this.isReadHttpSkipped(u))
     const httpOut = http.filter((u) => !this.isReadHttpSkipped(u))
diff --git a/src/lib/relay-url-normalize.test.ts b/src/lib/relay-url-normalize.test.ts
index af0661e3..e88232d6 100644
--- a/src/lib/relay-url-normalize.test.ts
+++ b/src/lib/relay-url-normalize.test.ts
@@ -1,20 +1,19 @@
 import { describe, expect, it } from 'vitest'
 import {
   canonicalRelaySessionKey,
+  httpIndexRelayBasesInUrlBatch,
   normalizeAnyRelayUrl,
   normalizeHttpRelayUrl,
   normalizeUrl
 } from '@/lib/url'
 
 describe('relay URL normalization', () => {
-  it('keeps https index relays as https (no wss conversion)', () => {
-    const https = normalizeAnyRelayUrl('https://mercury-relay.imwald.eu/')
-    expect(https).toMatch(/^https:\/\/mercury-relay\.imwald\.eu\/?$/)
-    expect(https.startsWith('wss://')).toBe(false)
+  it('does not treat arbitrary https URLs as WebSocket relays', () => {
+    expect(normalizeAnyRelayUrl('https://mercury-relay.imwald.eu/')).toBe('')
+    expect(normalizeUrl('https://mercury-relay.imwald.eu/')).toBe('')
     expect(normalizeHttpRelayUrl('https://mercury-relay.imwald.eu/')).toMatch(
       /^https:\/\/mercury-relay\.imwald\.eu\/?$/
     )
-    expect(normalizeUrl('https://mercury-relay.imwald.eu/')).toBe('')
   })
 
   it('keeps wss relays as wss', () => {
@@ -28,6 +27,26 @@ describe('relay URL normalization', () => {
     expect(normalizeAnyRelayUrl('nostr.land')).toBe('')
   })
 
+  it('only treats configured kind 10243 bases as HTTP index in a URL batch', () => {
+    const batch = [
+      'wss://nostr.land/',
+      'https://mercury-relay.imwald.eu/',
+      'https://profile-website.example/'
+    ]
+    const configured = ['https://mercury-relay.imwald.eu/']
+    expect(httpIndexRelayBasesInUrlBatch(batch, configured)).toEqual([
+      'https://mercury-relay.imwald.eu/'
+    ])
+    expect(httpIndexRelayBasesInUrlBatch(batch, [])).toEqual([])
+  })
+
+  it('canonicalRelaySessionKey routes by scheme without cross-normalizing', () => {
+    expect(canonicalRelaySessionKey('wss://nostr.land/')).toMatch(/^wss:\/\/nostr\.land/)
+    expect(canonicalRelaySessionKey('https://mercury-relay.imwald.eu/')).toMatch(
+      /^https:\/\/mercury-relay\.imwald\.eu/
+    )
+  })
+
   it('does not alias https session keys to wss', () => {
     const https = canonicalRelaySessionKey('https://mercury-relay.imwald.eu/')
     const wss = canonicalRelaySessionKey('wss://mercury-relay.imwald.eu/')
diff --git a/src/lib/url.ts b/src/lib/url.ts
index 6d576b85..64152df9 100644
--- a/src/lib/url.ts
+++ b/src/lib/url.ts
@@ -16,12 +16,28 @@ export function isWebsocketUrl(url: string): boolean {
   return /^wss?:\/\/.+$/.test(url)
 }
 
-/** Nostr relay over HTTPS (index relay JSON API), not WebSocket. */
-export function isHttpRelayUrl(url: string): boolean {
+export function isWebSocketRelayScheme(url: string): boolean {
+  return /^wss?:\/\//i.test(url.trim())
+}
+
+export function isHttpOrHttpsScheme(url: string): boolean {
+  return /^https?:\/\//i.test(url.trim())
+}
+
+/**
+ * Kind **10243** `r` tag values use http(s) for the index-relay JSON API.
+ * Do not use this to classify arbitrary https:// URLs (profile websites, etc.).
+ */
+export function isKind10243HttpRelayTagUrl(url: string): boolean {
   const u = url.trim()
   return /^https?:\/\/.+/i.test(u)
 }
 
+/** @deprecated Prefer {@link isKind10243HttpRelayTagUrl} only when parsing kind 10243. */
+export function isHttpRelayUrl(url: string): boolean {
+  return isKind10243HttpRelayTagUrl(url)
+}
+
 /**
  * Normalize https/http relay base URL without converting to WebSocket.
  * Use for kind 10243 and index-relay HTTP API calls (not for NIP-01 WS pool).
@@ -54,11 +70,25 @@ export function devProxyLoopbackHttpRelayBase(normalizedBase: string): string {
  * In dev, `index-relay-http` rewrites the base to same-origin `/dev-cors-index-relay` (see `vite.config.ts`).
  * Keep this list tiny — each entry needs a matching Vite `proxy` target.
  */
-const DEV_HTTPS_INDEX_RELAY_CORS_PROXY_HOSTS = new Set(['nos.lol'])
+const DEV_HTTPS_INDEX_RELAY_CORS_PROXY_HOSTS = new Set(['nos.lol', 'mercury-relay.imwald.eu'])
+
+function devIndexRelayTargetHostname(): string | null {
+  const raw = import.meta.env.VITE_DEV_INDEX_RELAY_TARGET
+  if (typeof raw !== 'string' || !raw.trim()) return null
+  try {
+    const withScheme = /^https?:\/\//i.test(raw.trim()) ? raw.trim() : `https://${raw.trim()}`
+    return new URL(withScheme).hostname.toLowerCase()
+  } catch {
+    return null
+  }
+}
 
 /**
- * Rewrite `https://nos.lol/...` index relay bases to the Vite dev proxy so POST /api/events/filter works.
+ * Rewrite HTTPS index relay bases to a same-origin Vite proxy so POST /api/events/filter works in dev.
  * Chain after `devProxyLoopbackHttpRelayBase`: `devProxyCorsProblematicHttpsIndexRelayBase(devProxyLoopbackHttpRelayBase(url))`.
+ *
+ * - Host matching `VITE_DEV_INDEX_RELAY_TARGET` → `/dev-index-relay`
+ * - Allowlisted hosts (e.g. nos.lol, mercury-relay.imwald.eu) → `/dev-cors-index-relay`
  */
 export function devProxyCorsProblematicHttpsIndexRelayBase(normalizedBase: string): string {
   if (import.meta.env.PROD || typeof window === 'undefined') return normalizedBase
@@ -69,7 +99,12 @@ export function devProxyCorsProblematicHttpsIndexRelayBase(normalizedBase: strin
     return normalizedBase
   }
   if (u.protocol !== 'https:') return normalizedBase
-  if (!DEV_HTTPS_INDEX_RELAY_CORS_PROXY_HOSTS.has(u.hostname.toLowerCase())) return normalizedBase
+  const host = u.hostname.toLowerCase()
+  const devTargetHost = devIndexRelayTargetHostname()
+  if (devTargetHost && host === devTargetHost) {
+    return `${window.location.origin}/dev-index-relay`
+  }
+  if (!DEV_HTTPS_INDEX_RELAY_CORS_PROXY_HOSTS.has(host)) return normalizedBase
   return `${window.location.origin}/dev-cors-index-relay`
 }
 
@@ -78,25 +113,59 @@ export function relayUrlHasExplicitScheme(url: string): boolean {
   return /^(https?|wss?):\/\//i.test(url.trim())
 }
 
-/**
- * Normalize a relay URL without changing its transport: `https://` stays HTTPS, `wss://` stays WebSocket.
- */
+/** Normalize WebSocket relay URLs (`ws:` / `wss:`) for REQ pools and feed layers. */
 export function normalizeAnyRelayUrl(url: string): string {
+  return normalizeUrl(url)
+}
+
+/** Stable key for per-relay session stats (scheme preserved; no https→wss aliasing). */
+export function canonicalRelaySessionKey(url: string): string {
   const trimmed = url.trim()
   if (!trimmed) return ''
-  if (!relayUrlHasExplicitScheme(trimmed)) {
-    logger.warn('Relay URL requires http:, https:, ws:, or wss: prefix', { url: trimmed })
-    return ''
+  if (isWebSocketRelayScheme(trimmed)) {
+    return (normalizeUrl(trimmed) || trimmed).toLowerCase()
   }
-  if (isHttpRelayUrl(trimmed)) return normalizeHttpRelayUrl(trimmed) || ''
-  if (isWebsocketUrl(trimmed)) return normalizeUrl(trimmed) || ''
-  logger.warn('Unsupported relay URL scheme', { url: trimmed })
-  return ''
+  if (isHttpOrHttpsScheme(trimmed)) {
+    return (normalizeHttpRelayUrl(trimmed) || trimmed).toLowerCase()
+  }
+  return trimmed.toLowerCase()
 }
 
-/** Stable key for per-relay session stats (scheme preserved; no https→wss aliasing). */
-export function canonicalRelaySessionKey(url: string): string {
-  return (normalizeAnyRelayUrl(url) || url.trim()).toLowerCase()
+/**
+ * HTTP index relay bases present in `urls` that are also listed in kind **10243** storage
+ * (`httpRead` / `httpWrite`). URLs with https scheme that are not configured are ignored.
+ */
+export function httpIndexRelayBasesInUrlBatch(
+  urls: readonly string[],
+  configuredHttpIndexBases: readonly string[]
+): string[] {
+  const configured = new Set(
+    configuredHttpIndexBases
+      .map((u) => normalizeHttpRelayUrl(u) || u.trim())
+      .filter(Boolean)
+      .map((u) => u.toLowerCase())
+  )
+  if (configured.size === 0) return []
+  const out = new Set<string>()
+  for (const raw of urls) {
+    const n = normalizeHttpRelayUrl(raw) || raw.trim()
+    if (!n) continue
+    if (configured.has(n.toLowerCase())) out.add(n)
+  }
+  return [...out]
+}
+
+export function urlMatchesConfiguredHttpIndexRelay(
+  url: string,
+  configuredHttpIndexBases: readonly string[]
+): boolean {
+  const n = normalizeHttpRelayUrl(url) || url.trim()
+  if (!n) return false
+  const key = n.toLowerCase()
+  return configuredHttpIndexBases.some((b) => {
+    const nb = normalizeHttpRelayUrl(b) || b.trim()
+    return nb && nb.toLowerCase() === key
+  })
 }
 
 // copy from nostr-tools/utils — WebSocket relays only (`ws:` / `wss:`); never rewrite http(s) schemes.
@@ -113,7 +182,6 @@ export function normalizeUrl(url: string): string {
     stripTrailingCommasFromHostname(p)
 
     if (p.protocol !== 'ws:' && p.protocol !== 'wss:') {
-      logger.warn('normalizeUrl expects ws: or wss: (use normalizeHttpRelayUrl for http(s))', { url: trimmed })
       return ''
     }
 
@@ -162,13 +230,12 @@ export function normalizeHttpUrl(url: string): string {
     const trimmed = url.trim()
     if (!trimmed) return ''
     if (!trimmed.includes('://')) {
-      logger.warn('HTTP relay URL requires http: or https: prefix', { url: trimmed })
+      logger.debug('HTTP URL requires http: or https: prefix', { url: trimmed })
       return ''
     }
     const p = new URL(trimmed)
     stripTrailingCommasFromHostname(p)
     if (p.protocol !== 'http:' && p.protocol !== 'https:') {
-      logger.warn('normalizeHttpUrl expects http: or https: (use normalizeUrl for ws(s))', { url: trimmed })
       return ''
     }
     p.pathname = p.pathname.replace(/\/+/g, '/')
diff --git a/src/pages/primary/ExplorePage/index.tsx b/src/pages/primary/ExplorePage/index.tsx
index 482239d8..3d193a59 100644
--- a/src/pages/primary/ExplorePage/index.tsx
+++ b/src/pages/primary/ExplorePage/index.tsx
@@ -25,7 +25,13 @@ import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { toRelay } from '@/lib/link'
 import { cn } from '@/lib/utils'
-import { isHttpRelayUrl, isWebsocketUrl, normalizeAnyRelayUrl, simplifyUrl } from '@/lib/url'
+import {
+  isKind10243HttpRelayTagUrl,
+  isWebsocketUrl,
+  normalizeAnyRelayUrl,
+  normalizeHttpRelayUrl,
+  simplifyUrl
+} from '@/lib/url'
 
 const RELAY_SUGGESTION_LIMIT = 20
 
@@ -177,8 +183,8 @@ function ExploreRelaySearchSection({
   const tryOpenRelay = () => {
     const trimmed = listFilter.trim()
     if (!trimmed) return
-    const normalized = normalizeAnyRelayUrl(trimmed)
-    if (!normalized || (!isHttpRelayUrl(normalized) && !isWebsocketUrl(normalized))) {
+    const normalized = normalizeAnyRelayUrl(trimmed) || normalizeHttpRelayUrl(trimmed)
+    if (!normalized || (!isWebsocketUrl(normalized) && !isKind10243HttpRelayTagUrl(normalized))) {
       toast.error(t('invalid relay URL'))
       return
     }
diff --git a/src/providers/FavoriteRelaysProvider.tsx b/src/providers/FavoriteRelaysProvider.tsx
index 77131aa5..99fbf1a2 100644
--- a/src/providers/FavoriteRelaysProvider.tsx
+++ b/src/providers/FavoriteRelaysProvider.tsx
@@ -5,7 +5,7 @@ import { createFavoriteRelaysDraftEvent, createBlockedRelaysDraftEvent, createRe
 import { getReplaceableEventIdentifier } from '@/lib/event'
 import { getRelaySetFromEvent } from '@/lib/event-metadata'
 import { randomString } from '@/lib/random'
-import { isHttpRelayUrl, isWebsocketUrl, normalizeAnyRelayUrl, normalizeUrl } from '@/lib/url'
+import { isWebsocketUrl, normalizeAnyRelayUrl, normalizeUrl } from '@/lib/url'
 import { queryService } from '@/services/client.service'
 import indexedDb from '@/services/indexed-db.service'
 import { TRelaySet } from '@/types'
@@ -200,7 +200,7 @@ export function FavoriteRelaysProvider({ children }: { children: React.ReactNode
     async (relaySetName: string, relayUrls: string[] = []) => {
       const normalizedUrls = relayUrls
         .map((url) => normalizeAnyRelayUrl(url))
-        .filter((url) => isWebsocketUrl(url) || isHttpRelayUrl(url))
+        .filter((url) => isWebsocketUrl(url))
       const id = randomString()
       const relaySetDraftEvent = createRelaySetDraftEvent({
         id,
diff --git a/src/providers/FeedProvider.tsx b/src/providers/FeedProvider.tsx
index 491c1779..6a2475db 100644
--- a/src/providers/FeedProvider.tsx
+++ b/src/providers/FeedProvider.tsx
@@ -3,7 +3,10 @@ import { feedRelayPolicyUrls } from '@/features/feed/relay-policy'
 import { getRelayListFromEvent, getHttpRelayListFromEvent } from '@/lib/event-metadata'
 import { buildAllFavoritesFeedRelayUrls, stripNostrLandAggrFromRelayUrls } from '@/lib/home-feed-relays'
 import logger from '@/lib/logger'
-import { syncViewerRelayStackNostrLandAggrEligible } from '@/lib/nostr-land-relay-eligibility'
+import {
+  syncViewerRelayStackNostrLandAggrEligible,
+  urlsForViewerNostrLandAggrEligibilitySync
+} from '@/lib/nostr-land-relay-eligibility'
 import { normalizeAnyRelayUrl } from '@/lib/url'
 import { viewerUsesGlobalRelayDefaults } from '@/lib/viewer-relay-defaults'
 import { buildWispTrendingNotesRelayUrl } from '@/lib/wisp-trending-relay'
@@ -133,14 +136,15 @@ export function FeedProvider({ children }: { children: ReactNode }) {
 
   /** Keeps {@link getViewerRelayStackNostrLandAggrEligible} in sync for non-home reads (threads, profiles, etc.). */
   useEffect(() => {
-    const urls = [
-      ...favoriteFeedRelayUrls,
-      ...replyExtraRelayLayers.inboxRelayUrls,
-      ...replyExtraRelayLayers.outboxRelayUrls,
-      ...replyExtraRelayLayers.cacheRelayUrls,
-      ...replyExtraRelayLayers.httpRelayUrls
-    ]
-    syncViewerRelayStackNostrLandAggrEligible(urls)
+    syncViewerRelayStackNostrLandAggrEligible(
+      urlsForViewerNostrLandAggrEligibilitySync({
+        favoriteRelayUrls: favoriteFeedRelayUrls,
+        relayListRead: replyExtraRelayLayers.inboxRelayUrls,
+        relayListWrite: replyExtraRelayLayers.outboxRelayUrls,
+        cacheRelayRead: replyExtraRelayLayers.cacheRelayUrls,
+        httpRelayRead: replyExtraRelayLayers.httpRelayUrls
+      })
+    )
   }, [favoriteFeedRelayUrls, replyExtraRelayLayers])
 
   const lastHomeFeedUrlLogRef = useRef({ primary: '', reply: '' })
diff --git a/src/services/client-query.service.ts b/src/services/client-query.service.ts
index ca87b8ac..52a8aa96 100644
--- a/src/services/client-query.service.ts
+++ b/src/services/client-query.service.ts
@@ -28,9 +28,10 @@ import {
 import { applyRelayNip42AckTimeout } from '@/lib/relay-nip42-tuning'
 import { isIndexRelayTransportFailure, queryIndexRelay } from '@/lib/index-relay-http'
 import logger from '@/lib/logger'
+import { getViewerNostrLandAggrSearchRelayUrls } from '@/lib/nostr-land-relay-eligibility'
 import {
   canonicalRelaySessionKey,
-  isHttpRelayUrl,
+  httpIndexRelayBasesInUrlBatch,
   normalizeAnyRelayUrl,
   normalizeHttpRelayUrl,
   normalizeUrl
@@ -230,6 +231,8 @@ export interface QueryOptions {
   firstRelayResultGraceMs?: number | false
   /** Label for {@link RelaySubscribeOpBatch} when this query opens REQs. */
   relayOpSource?: string
+  /** Kind 10243 HTTP index bases; only matching URLs in `urls` use the index JSON API. */
+  httpIndexRelayBases?: readonly string[]
   /**
    * When aborted (e.g. React effect cleanup / HMR), closes WS + HTTP index work promptly instead of waiting for
    * {@link globalTimeout}. Prevents overlapping NIP-50 shards from stacking until the tab OOMs.
@@ -476,15 +479,11 @@ export class QueryService {
             ? FIRST_RELAY_RESULT_GRACE_MS
             : null
 
-    const httpRelayBases = Array.from(
-      new Set(
-        urls
-          .filter((u) => isHttpRelayUrl(u))
-          .map((u) => normalizeHttpRelayUrl(u) || u)
-          .filter((u): u is string => Boolean(u) && !relaySessionStrikes.isReadHttpSkipped(u))
-      )
+    const httpRelayBases = httpIndexRelayBasesInUrlBatch(urls, options?.httpIndexRelayBases ?? []).filter(
+      (u) => !relaySessionStrikes.isReadHttpSkipped(u)
     )
-    const wsQueryUrls = urls.filter((u) => !isHttpRelayUrl(u))
+    const httpKeys = new Set(httpRelayBases.map((u) => canonicalRelaySessionKey(u)))
+    const wsQueryUrls = urls.filter((u) => !httpKeys.has(canonicalRelaySessionKey(u)))
 
     const reqId = ++queryReqSeq
     const source = options?.relayOpSource ?? 'QueryService.query'
@@ -807,11 +806,12 @@ export class QueryService {
         relays = relayUrlsStripExtendedTagReqBlocked([...FAST_READ_RELAY_URLS])
       }
     }
-    relays = relays.filter((url) => !isHttpRelayUrl(url))
+    // WebSocket REQ only — drop https URLs (index relays use HTTP polling elsewhere).
+    relays = relays.filter((url) => !/^https?:\/\//i.test(url.trim()))
 
     const wsCountBeforeStrikes = relays.length
     if (wsCountBeforeStrikes > 1) {
-      relays = relaySessionStrikes.filterReadHttpUrls(relays)
+      relays = relaySessionStrikes.filterReadHttpUrls(relays, [])
     }
 
     if (relays.length === 0) {
@@ -830,10 +830,11 @@ export class QueryService {
     const searchableSet = new Set(
       [
         ...SEARCHABLE_RELAY_URLS,
+        ...getViewerNostrLandAggrSearchRelayUrls(),
         ...nip66Service.getSearchableRelayUrls(),
         ...PROFILE_RELAY_URLS
       ]
-        .map((u) => canonicalRelaySessionKey(normalizeUrl(u) || String(u).trim()))
+        .map((u) => canonicalRelaySessionKey(String(u).trim()))
         .filter((k): k is string => k.length > 0)
     )
 
diff --git a/src/services/client-replaceable-events.service.ts b/src/services/client-replaceable-events.service.ts
index aa2a8bd3..e36f87a3 100644
--- a/src/services/client-replaceable-events.service.ts
+++ b/src/services/client-replaceable-events.service.ts
@@ -14,7 +14,7 @@ import {
 import { kinds, nip19 } from 'nostr-tools'
 import type { Event as NEvent, Filter } from 'nostr-tools'
 import DataLoader from 'dataloader'
-import { isHttpRelayUrl, isWebsocketUrl, normalizeAnyRelayUrl, normalizeHttpUrl, normalizeUrl } from '@/lib/url'
+import { isWebsocketUrl, normalizeAnyRelayUrl, normalizeHttpUrl, normalizeUrl } from '@/lib/url'
 import { getProfileFromEvent, getRelayListFromEvent } from '@/lib/event-metadata'
 import { LEGACY_PROFILE_BADGES_D_TAG } from '@/lib/nip58-profile-badges'
 import { formatPubkey, pubkeyToNpub, userIdToPubkey } from '@/lib/pubkey'
@@ -194,7 +194,7 @@ export class ReplaceableEventService {
           ...profileStack,
           ...hintLayer
             .map((u) => normalizeAnyRelayUrl(u) || normalizeUrl(u) || u.trim())
-            .filter((u): u is string => !!u && !isHttpRelayUrl(u))
+            .filter((u): u is string => !!u && !/^https?:\/\//i.test(u))
         ])
       )
     }
diff --git a/src/services/client.service.ts b/src/services/client.service.ts
index f22bbbae..48369b80 100644
--- a/src/services/client.service.ts
+++ b/src/services/client.service.ts
@@ -149,14 +149,21 @@ import {
   stripLocalNetworkRelaysForWssReq,
   urlIsNonLocalForRemoteViewer
 } from '@/lib/relay-list-sanitize'
+import {
+  getViewerNostrLandAggrSearchRelayUrls,
+  syncViewerRelayStackNostrLandAggrEligible
+} from '@/lib/nostr-land-relay-eligibility'
 import {
   canonicalRelaySessionKey,
-  isHttpRelayUrl,
+  httpIndexRelayBasesInUrlBatch,
+  isKind10243HttpRelayTagUrl,
   isLocalNetworkUrl,
+  isWebsocketUrl,
   normalizeAnyRelayUrl,
   normalizeHttpRelayUrl,
   normalizeUrl,
-  simplifyUrl
+  simplifyUrl,
+  urlMatchesConfiguredHttpIndexRelay
 } from '@/lib/url'
 import { canonicalFeedFilter, canonicalRelayUrls } from '@/features/feed/descriptor'
 import { initRelayPoolIdle, touchRelayPoolActivity } from '@/lib/relay-pool-idle'
@@ -356,6 +363,8 @@ class ClientService extends EventTarget {
   /** Set with signer from NostrProvider; used to skip relay AUTH when read-only (e.g. npub). */
   signerType?: TSignerType
   pubkey?: string
+  /** Normalized kind **10243** index relay bases for the logged-in viewer (not arbitrary https URLs). */
+  private viewerHttpIndexRelayBases: string[] = []
   private pool: SimplePool
 
   // Sub-services (public for direct access)
@@ -427,8 +436,8 @@ class ClientService extends EventTarget {
       if (!navigator.onLine && !isLocalNetworkUrl(url)) {
         throw new Error(`[offline] skipping non-local relay ${url}`)
       }
-      if (isHttpRelayUrl(url)) {
-        throw new Error(`[http-relay] ${url} uses the HTTPS index API, not WebSocket`)
+      if (!isWebsocketUrl(url) && isKind10243HttpRelayTagUrl(url)) {
+        throw new Error(`[http-index-relay] ${url} uses the HTTPS index API, not WebSocket`)
       }
       const n = normalizeUrl(url) || url
       const base = params?.connectionTimeout ?? RELAY_POOL_CONNECTION_TIMEOUT_MS
@@ -604,12 +613,17 @@ class ClientService extends EventTarget {
   async syncViewerPersonalRelayKeys(pubkey?: string): Promise<void> {
     const pk = pubkey?.trim() || this.pubkey?.trim()
     if (!pk) {
+      this.viewerHttpIndexRelayBases = []
       setViewerPersonalRelayKeys(new Set())
+      syncViewerRelayStackNostrLandAggrEligible([])
       return
     }
     const urls: string[] = []
     try {
       const rl = await this.peekRelayListFromStorage(pk)
+      this.viewerHttpIndexRelayBases = [...(rl.httpRead ?? []), ...(rl.httpWrite ?? [])]
+        .map((u) => normalizeHttpRelayUrl(u) || u)
+        .filter(Boolean)
       urls.push(
         ...(rl.read ?? []),
         ...(rl.write ?? []),
@@ -617,6 +631,7 @@ class ClientService extends EventTarget {
         ...(rl.httpWrite ?? [])
       )
     } catch {
+      this.viewerHttpIndexRelayBases = []
       // ignore
     }
     try {
@@ -630,6 +645,7 @@ class ClientService extends EventTarget {
       // ignore
     }
     setViewerPersonalRelayKeys(buildPersonalRelayKeySet(urls))
+    syncViewerRelayStackNostrLandAggrEligible(urls)
   }
 
   /** NIP-66: fetch relay discovery events (30166) in background to supplement search/NIP support. */
@@ -1707,9 +1723,9 @@ class ClientService extends EventTarget {
           }, connectionTimeout + publishAckBudgetMs + 2_000)
           
           try {
-            if (isHttpRelayUrl(url)) {
+            if (urlMatchesConfiguredHttpIndexRelay(url, this.viewerHttpIndexRelayBases)) {
               const base = normalizeHttpRelayUrl(url) || url
-              logger.debug(`[PublishEvent] Publishing to HTTP index relay`, { url: base })
+              logger.debug(`[PublishEvent] Publishing to kind 10243 HTTP index relay`, { url: base })
               await Promise.race([
                 publishEventToHttpRelay(base, event),
                 new Promise<never>((_, reject) =>
@@ -1846,7 +1862,7 @@ class ClientService extends EventTarget {
             }
           } catch (error) {
             const softHttpDown =
-              isHttpRelayUrl(url) &&
+              urlMatchesConfiguredHttpIndexRelay(url, this.viewerHttpIndexRelayBases) &&
               (error instanceof IndexRelayTransportError || isIndexRelayTransportFailure(error))
             if (softHttpDown) {
               logger.debug('[PublishEvent] HTTP index relay unreachable', {
@@ -2421,8 +2437,13 @@ class ClientService extends EventTarget {
     relayReqLog?: { groupId?: string; onBatchEnd?: (rows: RelayOpTerminalRow[]) => void }
   ) {
     const originalDedupedRelays = Array.from(new Set(urls))
+    const httpKeys = new Set(
+      httpIndexRelayBasesInUrlBatch(originalDedupedRelays, this.viewerHttpIndexRelayBases).map((u) =>
+        canonicalRelaySessionKey(u)
+      )
+    )
     let relays = sanitizeRelayUrlsForFetch(
-      originalDedupedRelays.filter((url) => !isHttpRelayUrl(url))
+      originalDedupedRelays.filter((url) => !httpKeys.has(canonicalRelaySessionKey(url)))
     )
     if (navigator.onLine) {
       relays = stripLocalNetworkRelaysForWssReq(relays)
@@ -2465,7 +2486,7 @@ class ClientService extends EventTarget {
 
     const wsRelayCountBeforeStrikes = relays.length
     if (wsRelayCountBeforeStrikes > 1) {
-      relays = relaySessionStrikes.filterReadHttpUrls(relays)
+      relays = relaySessionStrikes.filterReadHttpUrls(relays, this.viewerHttpIndexRelayBases)
     }
 
     // eslint-disable-next-line @typescript-eslint/no-this-alias
@@ -2481,6 +2502,7 @@ class ClientService extends EventTarget {
     }
     const searchableSet = new Set([
       ...SEARCHABLE_RELAY_URLS.map((u) => normalizeUrl(u) || u),
+      ...getViewerNostrLandAggrSearchRelayUrls().map((u) => normalizeUrl(u) || u),
       ...nip66Service.getSearchableRelayUrls().map((u) => normalizeUrl(u) || u)
     ])
     const groupedRequests = Array.from(grouped.entries()).map(([url, f]) => {
@@ -2865,14 +2887,7 @@ class ClientService extends EventTarget {
     let eosedAt: number | null = null
     let eventIds = new Set<string>()
 
-    const httpTimelinePollBases = Array.from(
-      new Set(
-        relays
-          .filter((u) => isHttpRelayUrl(u))
-          .map((u) => normalizeHttpRelayUrl(u) || u)
-          .filter(Boolean)
-      )
-    )
+    const httpTimelinePollBases = httpIndexRelayBasesInUrlBatch(relays, this.viewerHttpIndexRelayBases)
     let httpPollIntervalId: ReturnType<typeof setInterval> | null = null
     let httpPollCursorUnix = 0
     const clearHttpTimelinePoll = () => {
@@ -3108,7 +3123,12 @@ class ClientService extends EventTarget {
     }
 
     // HTTP index relays are handled via httpTimelinePollBases above — never pass them to the WS subscribe path.
-    const wsRelays = relays.filter((u) => !isHttpRelayUrl(u))
+    const httpPollKeys = new Set(
+      httpIndexRelayBasesInUrlBatch(relays, this.viewerHttpIndexRelayBases).map((u) =>
+        canonicalRelaySessionKey(u)
+      )
+    )
+    const wsRelays = relays.filter((u) => !httpPollKeys.has(canonicalRelaySessionKey(u)))
 
     // When there are HTTP relays but NO WS relays, subscribe([]) would fire oneose + onBatchEnd
     // immediately (via microtask) — before the HTTP initial poll returns any events. That causes:
@@ -3300,7 +3320,10 @@ class ClientService extends EventTarget {
       firstRelayResultGraceMs?: number | false
     }
   ) {
-    return this.queryService.query(sanitizeRelayUrlsForFetch(urls), filter, onevent, options)
+    return this.queryService.query(sanitizeRelayUrlsForFetch(urls), filter, onevent, {
+      ...options,
+      httpIndexRelayBases: this.viewerHttpIndexRelayBases
+    })
   }
 
   // Legacy query implementation removed - now delegated to QueryService
@@ -3330,16 +3353,13 @@ class ClientService extends EventTarget {
     } = {}
   ) {
     const originalDedupedRelays = Array.from(new Set(urls))
-    const httpRelayBases = Array.from(
-      new Set(
-        originalDedupedRelays
-          .filter((u) => isHttpRelayUrl(u))
-          .map((u) => normalizeHttpRelayUrl(u) || u)
-          .filter(Boolean)
-      )
+    const httpRelayBases = httpIndexRelayBasesInUrlBatch(
+      originalDedupedRelays,
+      this.viewerHttpIndexRelayBases
     )
+    const httpKeys = new Set(httpRelayBases.map((u) => canonicalRelaySessionKey(u)))
     const wsOriginal = sanitizeRelayUrlsForFetch(
-      originalDedupedRelays.filter((url) => !isHttpRelayUrl(url))
+      originalDedupedRelays.filter((url) => !httpKeys.has(canonicalRelaySessionKey(url)))
     )
     let relays = [...wsOriginal]
     if (relays.length === 0 && httpRelayBases.length === 0) {
@@ -3367,7 +3387,8 @@ class ClientService extends EventTarget {
       firstRelayResultGraceMs,
       replaceableRace,
       immediateReturn,
-      foreground
+      foreground,
+      httpIndexRelayBases: this.viewerHttpIndexRelayBases
     })
     if (cache) {
       events.forEach((evt) => {
@@ -3411,8 +3432,8 @@ class ClientService extends EventTarget {
       })
     }
 
-    if (isHttpRelayUrl(normalized)) {
-      // HTTP index relay: use HTTP API instead of WebSocket pool
+    if (urlMatchesConfiguredHttpIndexRelay(normalized, this.viewerHttpIndexRelayBases)) {
+      // Kind 10243 index relay: use HTTP API instead of WebSocket pool
       try {
         const events = await this.queryService.query([normalized], filter, undefined, queryOpts)
         return { events, connectionError: undefined }
@@ -3686,6 +3707,7 @@ class ClientService extends EventTarget {
     )
     const searchableSet = new Set([
       ...SEARCHABLE_RELAY_URLS.map((u) => normalizeUrl(u) || u),
+      ...getViewerNostrLandAggrSearchRelayUrls().map((u) => normalizeUrl(u) || u),
       ...nip66Service.getSearchableRelayUrls().map((u) => normalizeUrl(u) || u),
       ...PROFILE_RELAY_URLS.map((u) => normalizeUrl(u) || u).filter(Boolean)
     ])
diff --git a/src/services/relay-selection.service.ts b/src/services/relay-selection.service.ts
index f98c058c..a850dc4f 100644
--- a/src/services/relay-selection.service.ts
+++ b/src/services/relay-selection.service.ts
@@ -9,7 +9,13 @@ import storage from '@/services/local-storage.service'
 import { NOSTR_URI_FOR_REPLY_PUBKEYS_REGEX } from '@/lib/content-patterns'
 import client from '@/services/client.service'
 import { eventService } from '@/services/client.service'
-import { normalizeAnyRelayUrl, isLocalNetworkUrl } from '@/lib/url'
+import {
+  canonicalRelaySessionKey,
+  isHttpOrHttpsScheme,
+  isLocalNetworkUrl,
+  normalizeAnyRelayUrl,
+  normalizeHttpRelayUrl
+} from '@/lib/url'
 import { TRelaySet, TRelayList } from '@/types'
 import logger from '@/lib/logger'
 import indexedDb from '@/services/indexed-db.service'
@@ -123,7 +129,9 @@ class RelaySelectionService {
       )
       const relayTypes: Record<string, RelaySourceType> = {}
       const httpSet = new Set(
-        (userHttpWriteRelays ?? []).map((u) => normalizeAnyRelayUrl(u) || u).filter(Boolean)
+        (userHttpWriteRelays ?? [])
+          .map((u) => canonicalRelaySessionKey(u))
+          .filter(Boolean)
       )
       filtered.forEach((url) => {
         relayTypes[url] = httpSet.has(url) ? 'http_relay_list' : 'relay_list'
@@ -136,9 +144,12 @@ class RelaySelectionService {
 
     const addRelay = (url: string, type: RelaySourceType) => {
       if (!url) return
-      const normalized = normalizeAnyRelayUrl(url)
-      if (normalized && !seen.has(normalized)) {
-        seen.add(normalized)
+      const normalized = isHttpOrHttpsScheme(url)
+        ? normalizeHttpRelayUrl(url)
+        : normalizeAnyRelayUrl(url)
+      const key = normalized ? canonicalRelaySessionKey(normalized) : ''
+      if (key && !seen.has(key)) {
+        seen.add(key)
         order.push({ url: normalized, type })
       } else if (!normalized) {
         logger.warn('Skipping invalid relay URL', { url })
diff --git a/vite.config.ts b/vite.config.ts
index ffd3f5b2..20d3078c 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -162,6 +162,12 @@ export default defineConfig(({ mode }) => {
   /** gc_index_relay (or compatible) HTTP API; app POSTs to /api/events/filter. HTTP 500 in the browser means this process errored, not that Vite failed. */
   const devIndexRelayTarget =
     env.VITE_DEV_INDEX_RELAY_TARGET?.trim() || 'http://127.0.0.1:4000'
+  /** Target for `/dev-cors-index-relay` (allowlisted HTTPS index hosts in dev). */
+  const devCorsIndexRelayTarget =
+    env.VITE_DEV_CORS_INDEX_RELAY_TARGET?.trim()?.replace(/\/+$/, '') ||
+    (/^https:\/\//i.test(devIndexRelayTarget)
+      ? devIndexRelayTarget.replace(/\/+$/, '')
+      : 'https://mercury-relay.imwald.eu')
 
   /**
    * Desktop shell (`vite build --mode electron`): always bake public Imwald API origins into the bundle.
@@ -261,7 +267,7 @@ export default defineConfig(({ mode }) => {
          * Same-origin proxy only — allowlisted hosts in {@link devProxyCorsProblematicHttpsIndexRelayBase}.
          */
         '/dev-cors-index-relay': {
-          target: 'https://nos.lol',
+          target: devCorsIndexRelayTarget,
           changeOrigin: true,
           secure: true,
           rewrite: (p) => p.replace(/^\/dev-cors-index-relay/, '') || '/'