diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14de4ea6b99..535d8ad2098 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -63,6 +63,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Web fetch: scope provider fallback cache entries by the selected fetch provider so config reloads cannot reuse another provider's cached fallback payload. Thanks @vincentkoc.
 - Web search: honor late-bound `tools.web.search.enabled: false` during tool execution so config reloads cannot leave an already-created `web_search` tool runnable. Thanks @vincentkoc.
 - Plugins/packages: reject inferred built runtime entries that exist but fail package-boundary checks instead of falling back to TypeScript source for installed packages. Thanks @vincentkoc.
 - Plugins/loader: do not retry native-loaded JavaScript plugin modules through the source transformer after native evaluation has already reached a missing dependency, avoiding duplicate top-level side effects. Thanks @vincentkoc.
diff --git a/src/agents/tools/web-fetch.provider-fallback.test.ts b/src/agents/tools/web-fetch.provider-fallback.test.ts
index 80ad644efbb..9777627e65c 100644
--- a/src/agents/tools/web-fetch.provider-fallback.test.ts
+++ b/src/agents/tools/web-fetch.provider-fallback.test.ts
@@ -221,4 +221,77 @@ describe("web_fetch provider fallback normalization", () => {
       }),
     );
   });
+
+  it("scopes provider fallback cache entries by the late-bound provider", async () => {
+    global.fetch = withFetchPreconnect(
+      vi.fn(async () => {
+        throw new Error("network failed");
+      }),
+    );
+    resolveWebFetchDefinitionMock.mockImplementation(
+      ({ runtimeWebFetch }: { runtimeWebFetch?: { selectedProvider?: string } }) => {
+        const providerId = runtimeWebFetch?.selectedProvider ?? "unknown";
+        return {
+          provider: { id: providerId },
+          definition: {
+            description: providerId,
+            parameters: {},
+            execute: async () => ({
+              text: `${providerId} fallback body`,
+            }),
+          },
+        };
+      },
+    );
+
+    const executeWithProvider = async (providerId: string) => {
+      runtimeState.activeSecretsRuntimeSnapshot = {
+        config: {
+          tools: {
+            web: {
+              fetch: {
+                provider: providerId,
+              },
+            },
+          },
+        },
+      };
+      runtimeState.activeRuntimeWebToolsMetadata = {
+        fetch: {
+          providerConfigured: providerId,
+          providerSource: "configured",
+          selectedProvider: providerId,
+          selectedProviderKeySource: "config",
+          diagnostics: [],
+        },
+        diagnostics: [],
+      };
+      const tool = createWebFetchTool({
+        config: {} as OpenClawConfig,
+        sandboxed: false,
+        lateBindRuntimeConfig: true,
+      });
+      return tool?.execute?.("call-provider-fallback", {
+        url: "https://example.com/provider-cache-scope",
+      });
+    };
+
+    const first = await executeWithProvider("firecrawl");
+    const second = await executeWithProvider("perplexity-fetch");
+    const firstDetails = first?.details as {
+      externalContent?: { provider?: string };
+      text?: string;
+    };
+    const secondDetails = second?.details as {
+      cached?: boolean;
+      externalContent?: { provider?: string };
+      text?: string;
+    };
+
+    expect(firstDetails.externalContent?.provider).toBe("firecrawl");
+    expect(firstDetails.text).toContain("firecrawl fallback body");
+    expect(secondDetails.externalContent?.provider).toBe("perplexity-fetch");
+    expect(secondDetails.text).toContain("perplexity-fetch fallback body");
+    expect(secondDetails.cached).toBeUndefined();
+  });
 });
diff --git a/src/agents/tools/web-fetch.ts b/src/agents/tools/web-fetch.ts
index 2a9f7419701..917f8e075d1 100644
--- a/src/agents/tools/web-fetch.ts
+++ b/src/agents/tools/web-fetch.ts
@@ -283,6 +283,7 @@ type WebFetchRuntimeParams = {
     allowRfc2544BenchmarkRange?: boolean;
     allowIpv6UniqueLocalRange?: boolean;
   };
+  providerCacheKey?: string;
   lookupFn?: LookupFn;
   resolveProviderFallback: () => Promise<WebFetchProviderFallback>;
 };
@@ -407,7 +408,7 @@ async function runWebFetch(params: WebFetchRuntimeParams): Promise<Record<string
         }
       : undefined;
   const cacheKey = normalizeCacheKey(
-    `fetch:${params.url}:${params.extractMode}:${params.maxChars}${allowRfc2544BenchmarkRange ? ":allow-rfc2544" : ""}${allowIpv6UniqueLocalRange ? ":allow-ipv6-ula" : ""}${useTrustedEnvProxy ? ":trusted-env-proxy" : ""}`,
+    `fetch:${params.url}:${params.extractMode}:${params.maxChars}${params.providerCacheKey ? `:provider:${params.providerCacheKey}` : ""}${allowRfc2544BenchmarkRange ? ":allow-rfc2544" : ""}${allowIpv6UniqueLocalRange ? ":allow-ipv6-ula" : ""}${useTrustedEnvProxy ? ":trusted-env-proxy" : ""}`,
   );
   const cached = readCache(FETCH_CACHE, cacheKey);
   if (cached) {
@@ -641,6 +642,12 @@ export function createWebFetchTool(options?: {
       if (!resolveFetchEnabled({ fetch: executionFetch, sandboxed: options?.sandboxed })) {
         throw new Error("web_fetch is disabled.");
       }
+      const providerCacheKey =
+        normalizeOptionalLowercaseString(runtimeWebFetch?.selectedProvider) ??
+        normalizeOptionalLowercaseString(runtimeWebFetch?.providerConfigured) ??
+        (executionFetch && "provider" in executionFetch
+          ? normalizeOptionalLowercaseString(executionFetch.provider)
+          : undefined);
       const readabilityEnabled = resolveFetchReadabilityEnabled(executionFetch);
       const userAgent =
         (executionFetch &&
@@ -692,6 +699,7 @@ export function createWebFetchTool(options?: {
         config,
         useTrustedEnvProxy: resolveFetchUseTrustedEnvProxy(executionFetch),
         ssrfPolicy: executionFetch?.ssrfPolicy,
+        ...(providerCacheKey ? { providerCacheKey } : {}),
         lookupFn: options?.lookupFn,
         resolveProviderFallback,
       });