diff --git a/web/src/app/chat/components/research-activities-block.tsx b/web/src/app/chat/components/research-activities-block.tsx
index 239bea4..d54e01b 100644
--- a/web/src/app/chat/components/research-activities-block.tsx
+++ b/web/src/app/chat/components/research-activities-block.tsx
@@ -75,7 +75,9 @@ function ActivityMessage({ messageId }: { messageId: string }) {
     if (message.agent !== "reporter" && message.agent !== "planner") {
       return (
         <div className="px-4 py-2">
-          <Markdown animated>{message.content}</Markdown>
+          <Markdown animated checkLinkCredibility>
+            {message.content}
+          </Markdown>
         </div>
       );
     }
diff --git a/web/src/app/chat/components/research-report-block.tsx b/web/src/app/chat/components/research-report-block.tsx
index cad2941..f0a7c83 100644
--- a/web/src/app/chat/components/research-report-block.tsx
+++ b/web/src/app/chat/components/research-report-block.tsx
@@ -64,7 +64,9 @@ export function ResearchReportBlock({
         />
       ) : (
         <>
-          <Markdown animated>{message?.content}</Markdown>
+          <Markdown animated checkLinkCredibility>
+            {message?.content}
+          </Markdown>
           {message?.isStreaming && <LoadingAnimation className="my-12" />}
         </>
       )}
diff --git a/web/src/components/deer-flow/link.tsx b/web/src/components/deer-flow/link.tsx
index 8e03291..3e81f0d 100644
--- a/web/src/components/deer-flow/link.tsx
+++ b/web/src/components/deer-flow/link.tsx
@@ -1,18 +1,24 @@
-import { useEffect, useMemo } from "react";
-import { useToolCalls } from "~/core/store";
-import { cn } from "~/lib/utils";
+import { useMemo } from "react";
+import { useStore, useToolCalls } from "~/core/store";
 import { Tooltip } from "./tooltip";
+import { WarningFilled } from "@ant-design/icons";
 
 export const Link = ({
   href,
   children,
+  checkLinkCredibility = false,
 }: {
   href: string | undefined;
   children: React.ReactNode;
+  checkLinkCredibility: boolean;
 }) => {
   const toolCalls = useToolCalls();
+  const responding = useStore((state) => state.responding);
+
   const credibleLinks = useMemo(() => {
     const links = new Set<string>();
+    if (!checkLinkCredibility) return links;
+
     (toolCalls || []).forEach((call) => {
       if (call && call.name === "web_search" && call.result) {
         const result = JSON.parse(call.result) as Array<{ url: string }>;
@@ -23,28 +29,26 @@ export const Link = ({
     });
     return links;
   }, [toolCalls]);
-  const isCredible = useMemo(() => {
-    return href ? credibleLinks.has(href) : true;
-  }, [credibleLinks, href]);
 
-  if (!isCredible) {
-    return (
-      <Tooltip title="This link might be a hallucination from AI model and may not be reliable.">
-        <a
-          href={href}
-          target="_blank"
-          rel="noopener noreferrer"
-          className={cn(isCredible && "after:ml-0.5 after:content-['⚠️']")}
-        >
-          {children}
-        </a>
-      </Tooltip>
-    );
-  }
+  const isCredible = useMemo(() => {
+    return checkLinkCredibility && href && !responding
+      ? credibleLinks.has(href)
+      : true;
+  }, [credibleLinks, href, responding, checkLinkCredibility]);
 
   return (
-    <a href={href} target="_blank" rel="noopener noreferrer">
-      {children}
-    </a>
+    <span className="flex items-center gap-1.5">
+      <a href={href} target="_blank" rel="noopener noreferrer">
+        {children}
+      </a>
+      {!isCredible && (
+        <Tooltip
+          title="This link might be a hallucination from AI model and may not be reliable."
+          delayDuration={300}
+        >
+          <WarningFilled className="text-sx transition-colors hover:!text-yellow-500" />
+        </Tooltip>
+      )}
+    </span>
   );
 };
diff --git a/web/src/components/deer-flow/markdown.tsx b/web/src/components/deer-flow/markdown.tsx
index 947dfae..5f7e253 100644
--- a/web/src/components/deer-flow/markdown.tsx
+++ b/web/src/components/deer-flow/markdown.tsx
@@ -20,28 +20,36 @@ import Image from "./image";
 import { Tooltip } from "./tooltip";
 import { Link } from "./link";
 
-const components: ReactMarkdownOptions["components"] = {
-  a: ({ href, children }) => <Link href={href}>{children}</Link>,
-  img: ({ src, alt }) => (
-    <a href={src as string} target="_blank" rel="noopener noreferrer">
-      <Image className="rounded" src={src as string} alt={alt ?? ""} />
-    </a>
-  ),
-};
-
 export function Markdown({
   className,
   children,
   style,
   enableCopy,
   animated = false,
+  checkLinkCredibility = false,
   ...props
 }: ReactMarkdownOptions & {
   className?: string;
   enableCopy?: boolean;
   style?: React.CSSProperties;
   animated?: boolean;
+  checkLinkCredibility?: boolean;
 }) {
+  const components: ReactMarkdownOptions["components"] = useMemo(() => {
+    return {
+      a: ({ href, children }) => (
+        <Link href={href} checkLinkCredibility={checkLinkCredibility}>
+          {children}
+        </Link>
+      ),
+      img: ({ src, alt }) => (
+        <a href={src as string} target="_blank" rel="noopener noreferrer">
+          <Image className="rounded" src={src as string} alt={alt ?? ""} />
+        </a>
+      ),
+    };
+  }, [checkLinkCredibility]);
+
   const rehypePlugins = useMemo(() => {
     if (animated) {
       return [rehypeKatex, rehypeSplitWordsIntoSpans];
diff --git a/web/src/components/deer-flow/tooltip.tsx b/web/src/components/deer-flow/tooltip.tsx
index e8a8065..6cfa631 100644
--- a/web/src/components/deer-flow/tooltip.tsx
+++ b/web/src/components/deer-flow/tooltip.tsx
@@ -19,6 +19,7 @@ export function Tooltip({
   open,
   side,
   sideOffset,
+  delayDuration = 750,
 }: {
   className?: string;
   style?: CSSProperties;
@@ -27,10 +28,11 @@ export function Tooltip({
   open?: boolean;
   side?: "left" | "right" | "top" | "bottom";
   sideOffset?: number;
+  delayDuration?: number;
 }) {
   return (
     <TooltipProvider>
-      <ShadcnTooltip delayDuration={750} open={open}>
+      <ShadcnTooltip delayDuration={delayDuration} open={open}>
         <TooltipTrigger asChild>{children}</TooltipTrigger>
         <TooltipContent
           className={cn(className)}