diff --git a/src/components/shortcodes/LinkCard.astro b/src/components/shortcodes/LinkCard.astro
index b8097d4..7cdb361 100644
--- a/src/components/shortcodes/LinkCard.astro
+++ b/src/components/shortcodes/LinkCard.astro
@@ -1,4 +1,6 @@
 ---
+import { getMetadata, getWaybackMetadata } from '../../plugins/get-metadata';
+
 interface Props {
     url: string;
     showArchive?: boolean;
@@ -29,71 +31,12 @@ function formatDateToNumber(date: Date | string | undefined): string {
     return `${year}${month}${day}`;
 }
 
-// Get metadata from the URL
-async function fetchMetadata(url: string) {
-    try {
-        const response = await fetch(url, {
-            headers: {
-                'User-Agent': 'Mozilla/5.0 (compatible; LinkCard/1.0)'
-            }
-        });
-
-        if (!response.ok) {
-            throw new Error(`HTTP ${response.status}`);
-        }
-
-        const html = await response.text();
-
-        // 提取元数据
-        const titleMatch = html.match(/<title[^>]*>([^<]+)<\/title>/i);
-        const descriptionMatch = html.match(/<meta[^>]+name=["']description["'][^>]+content=["']([^"']+)["']/i) ||
-            html.match(/<meta[^>]+property=["']og:description["'][^>]+content=["']([^"']+)["']/i);
-        const imageMatch = html.match(/<meta[^>]+property=["']og:image["'][^>]+content=["']([^"']+)["']/i) ||
-            html.match(/<meta[^>]+name=["']twitter:image["'][^>]+content=["']([^"']+)["']/i);
-        const siteNameMatch = html.match(/<meta[^>]+property=["']og:site_name["'][^>]+content=["']([^"']+)["']/i);
-
-        return {
-            title: titleMatch?.[1]?.trim() || new URL(url).hostname,
-            description: descriptionMatch?.[1]?.trim() || '',
-            image: imageMatch?.[1]?.trim() || '',
-            siteName: siteNameMatch?.[1]?.trim() || new URL(url).hostname,
-            domain: new URL(url).hostname
-        };
-    } catch (error) {
-        console.warn(`Failed to fetch metadata for ${url}:`, error);
-        const domain = new URL(url).hostname;
-        return {
-            title: domain,
-            description: '',
-            image: '',
-            siteName: domain,
-            domain
-        };
-    }
-}
-
-// Check if the URL is archived on the Wayback Machine at the updated/build time
-// TODO: bringing user's own archive service link
-async function checkArchive(url: string) {
-    try {
-        // Determine which date to use (prefer updatedDate if available, or fallback to the build time)
-        const timestamp = (updatedDate ? formatDateToNumber(updatedDate) : formatDateToNumber(pubDate)) || formatDateToNumber(new Date());
-        const archiveUrl = `https://archive.org/wayback/available?url=${encodeURIComponent(url)}&timestamp=${timestamp}`;
-        const response = await fetch(archiveUrl);
-        const data = await response.json();
-
-        if (data.archived_snapshots?.closest?.available) {
-            return data.archived_snapshots.closest.url;
-        }
-    } catch (error) {
-        console.warn(`Failed to check archive for ${url}:`, error);
-    }
-    return null;
-}
+// Determine which date to use (prefer updatedDate if available, or fallback to the build time)
+const timestamp = (updatedDate ? formatDateToNumber(updatedDate) : formatDateToNumber(pubDate)) || formatDateToNumber(new Date());
 
 // extract metadata and archive URL
-const metadata = Astro.props.title ? siteMetadata : await fetchMetadata(url);
-const archiveUrl = showArchive ? await checkArchive(url) : null;
+const metadata = Astro.props.title ? siteMetadata : await getMetadata(url);
+const archiveUrl = showArchive ? await getWaybackMetadata(url, timestamp) : null;
 ---
 
 <div class="link-card">
diff --git a/src/layouts/Layout.astro b/src/layouts/Layout.astro
index e761380..03bb39e 100644
--- a/src/layouts/Layout.astro
+++ b/src/layouts/Layout.astro
@@ -50,33 +50,29 @@ const { title = pageTitle, author = siteConfig.defaultAuthor.name,description =
     {spaEnabled && <ClientRouter fallback="animate" />}
     <!--transitional animation is broken in firefox though-->
   </head>
-  <body>
-    <main>
-      {noscript && <div id="top" style="visibility: hidden">Back To Top</div>}
-      <div class="container">
-        <div class="terminal-path">
-          {path}
-        </div>
-        <Navbar />
-        <Search />
-        
-        <div class="content-box">
-          <slot />
-        </div>
-      </div>
-    </main>
-    
-    <footer class="footer">
-      <div class="floating">
-        <BackToTop/>
+  <body class="container">
+        {noscript && <div id="top" style="visibility: hidden">Back To Top</div>}
+        <header>
+              <div class="terminal-path">
+                {path}
+              </div>
+              <Navbar />
+              <Search />
+        </header>
+        <main class="content-box">
+              <slot />
+        </main>
 
-        {noscript ? <ThemeSwitcher_CSSOnly/> : <ThemeSwitcher/>}
-      </div>
-      <div class="container">
-        <Fragment set:html={customFooter} />
-        <p>Powered by <a href="https://git.gb0.dev/gb/mercury" target="_blank"><Logo width={16} height={16} /> mercury</a></p>
-      </div>
-    </footer>
+      <footer class="footer">
+        <div class="floating">
+          <BackToTop/>
+          {noscript ? <ThemeSwitcher_CSSOnly/> : <ThemeSwitcher/>}
+        </div>
+        <div class="container">
+          <Fragment set:html={customFooter} />
+          <p>Powered by <a href="https://git.gb0.dev/gb/mercury" target="_blank"><Logo width={16} height={16} /> mercury</a></p>
+        </div>
+      </footer>
     {statisticsEnabled && <Statistics/>}
     { (siteConfig.neko.enabled && !noscript) &&
       <>
diff --git a/src/pages/blog/[...slug].astro b/src/pages/blog/[...slug].astro
index 5271ade..5396a57 100644
--- a/src/pages/blog/[...slug].astro
+++ b/src/pages/blog/[...slug].astro
@@ -26,7 +26,7 @@ const slug = Astro.params.slug;
 const author = Array.isArray(entry.data.author) ? entry.data.author : (entry.data.author !== undefined ? [entry.data.author] : [{collection: 'authors', id: siteConfig.defaultAuthor.id}]);
 
 // Get author data
-const authorData = await Promise.all((author).map((singleAuthor) => getEntry(singleAuthor).then(authorEntry => authorEntry.data)))
+const authorData = await Promise.all((author).map((singleAuthor) => getEntry(singleAuthor).then(authorEntry => authorEntry?.data)))
 const authorInfo =  authorData.includes(undefined) ? [{data: siteConfig.defaultAuthor}] : authorData;
 
 // get featured image and use it as og:image
@@ -49,26 +49,27 @@ const cover = customFeaturedImage || matchedImage_src?.src || firstImageURL || `
   ogImage={cover}
   author={authorInfo.map((a: any) => a.name).join(', ')}
 >
-      <h1 class="title">{entry.data.title}</h1>
-        {authorInfo.map((a: any) => <AuthorInfo data={a} />)}
-      <span class="date">{new Date(entry.data.pubDate).toISOString().split('T')[0]}</span>
-          {headings.length !== 0 && <TableOfContents headings={headings} />}
-          {entry.data.summary && <p class="summary">{entry.data.summary}</p> }
-      <div class="content">
-          <Content />
-      </div>
-
+    <article>
+        <h1 class="title">{entry.data.title}</h1>
+            {authorInfo.map((a: any) => <AuthorInfo data={a} />)}
+        <span class="date">{new Date(entry.data.pubDate).toISOString().split('T')[0]}</span>
+            {headings.length !== 0 && <TableOfContents headings={headings} />}
+            {entry.data.summary && <p class="summary">{entry.data.summary}</p> }
+        <div class="content">
+            <Content />
+        </div>
+    </article>
     <div class="extra-post" style="margin-top: 2rem; border-top: 1px solid var(--border-color); padding-top: 1rem;">
-    <ReplyViaEmail title={entry.data.title} email={authorInfo[0].email} />
-        <br>
-    <a href="/blog">&larr; Back to posts</a>
-    {!noscript && <h2>Comments</h2> <Comments />}
-    {!noscript &&
-        <script>
-            import "katex/dist/contrib/copy-tex.js"
-        </script>
-    }
-  </div>
+        <ReplyViaEmail title={entry.data.title} email={authorInfo[0].email} />
+            <br>
+        <a href="/blog">&larr; Back to posts</a>
+        {!noscript && <h2>Comments</h2> <Comments />}
+        {!noscript &&
+            <script>
+                import "katex/dist/contrib/copy-tex.js"
+            </script>
+        }
+    </div>
 </Layout>
 <style>
     p.summary {
diff --git a/src/plugins/get-metadata.js b/src/plugins/get-metadata.js
new file mode 100644
index 0000000..1e1da23
--- /dev/null
+++ b/src/plugins/get-metadata.js
@@ -0,0 +1,103 @@
+import { parse } from "ultrahtml";
+import "ultrahtml/selector";
+import {querySelector} from "ultrahtml/selector";
+
+// Simple in-memory cache
+const metadataCache = new Map();
+
+export async function getMetadata(url) {
+    if (metadataCache.has(url)) {
+        const cached = metadataCache.get(url);
+        return cached.data;
+    }
+
+    try {
+        const response = await fetch(url, {
+            headers: {
+                'User-Agent': 'Mozilla/5.0 (compatible; LinkCard/1.1)',
+                'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9',
+            }
+        });
+
+        if (!response.ok) {
+            throw new Error(`Request not succeed: HTTP ${response.status}`);
+        }
+
+        const html = await response.text();
+
+        const document = parse(html);
+
+        const metadata = {
+            title: '',
+            description: '',
+            image: '',
+            siteName: '',
+            domain: new URL(url).hostname
+        };
+
+        // Extract title
+        const titleElement = querySelector(document,'title');
+
+        if (titleElement) {
+            metadata.title = titleElement.children[0].value.trim();
+        }
+        // Extract other metadata
+        const descriptionElement = querySelector(document, 'meta[name="description"]');
+        if (descriptionElement) {
+            metadata.description = descriptionElement.attributes.content || '';
+        }
+        const imageElement = querySelector(document,'meta[property="og:image"]') || querySelector(document,'meta[name="twitter:image"]');
+        if (imageElement) {
+            metadata.image = imageElement.attributes.content || '';
+        }
+        const siteNameElement = querySelector(document,'meta[property="og:site_name"]')
+        if (siteNameElement) {
+            metadata.siteName = siteNameElement.attributes.content || '';
+        } else {
+            metadata.siteName = metadata.domain; // Fallback to domain if no site name found
+        }
+
+        // Store in cache
+        metadataCache.set(url, {
+            data: metadata
+        });
+
+        return metadata;
+    } catch (error) {
+        console.warn(`Failed to fetch metadata for ${url}:`, error);
+        const domain = new URL(url).hostname;
+        return {
+            title: domain,
+            description: '',
+            image: '',
+            siteName: domain,
+            domain
+        };
+    }
+}
+
+export async function getWaybackMetadata(url, timestamp){
+    try {
+        const archiveUrl = `https://archive.org/wayback/available?url=${encodeURIComponent(url)}&timestamp=${timestamp}`;
+
+        if (metadataCache.has(archiveUrl)) {
+            const cached = metadataCache.get(archiveUrl);
+            return cached.data;
+        }
+
+        const response = await fetch(archiveUrl);
+        const data = await response.json();
+
+        if (data.archived_snapshots?.closest?.available) {
+            // Store in cache
+            metadataCache.set(archiveUrl, {
+                data: data.archived_snapshots.closest.url
+            });
+
+            return data.archived_snapshots.closest.url;
+        }
+    } catch (error) {
+        console.warn(`Failed to check archive for ${url}:`, error);
+    }
+    return null;
+}
\ No newline at end of file
diff --git a/src/styles/global.css b/src/styles/global.css
index 95f55bf..ab0b697 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -70,7 +70,7 @@ a:hover {
   opacity: 0.8;
 }
 
-main {
+body {
   max-width: 1200px;
   margin: 0 auto;
   padding: 2rem 1rem;