diff --git a/src/components/layout/Footer.astro b/src/components/layout/Footer.astro
index 4ebc3b7..f87b28f 100644
--- a/src/components/layout/Footer.astro
+++ b/src/components/layout/Footer.astro
@@ -34,6 +34,8 @@
       <a
         href="https://blog.atmosphere.community"
         class="btn btn--primary btn--small"
+        rel="noopener noreferrer"
+        target="_blank"
       >
         Subscribe
       </a>
diff --git a/src/components/layout/Hero.astro b/src/components/layout/Hero.astro
index 0492a2c..7d3fe68 100644
--- a/src/components/layout/Hero.astro
+++ b/src/components/layout/Hero.astro
@@ -22,7 +22,7 @@ const { subscriberCount = 1000, groupCount = 10 } = Astro.props;
     </p>
 
     <div class="hero-actions">
-      <a href="https://blog.atmosphere.community" class="btn btn--hero">
+      <a href="https://blog.atmosphere.community" class="btn btn--hero" rel="noopener noreferrer" target="_blank">
         Subscribe to the newsletter
       </a>
       <a href="https://bsky.app/profile/atmosphere.community" class="hero-secondary" rel="noopener noreferrer" target="_blank">
diff --git a/src/layouts/Base.astro b/src/layouts/Base.astro
index 1ec84a5..e90bdfc 100644
--- a/src/layouts/Base.astro
+++ b/src/layouts/Base.astro
@@ -46,16 +46,26 @@ import '../styles/global.css';
       rel="stylesheet"
     />
   </head>
-  <body>
+  <body class="page-shell">
     <a href="#main" class="skip-link">Skip to content</a>
     <slot name="header" />
     <main id="main">
       <slot />
     </main>
     <slot name="footer" />
+    <style>
+      .page-shell {
+        display: flex;
+        flex-direction: column;
+      }
+      .page-shell main {
+        flex: 1 0 auto;
+      }
+    </style>
     <script>
       import { applyEventCardTiming } from "../lib/client/event-time";
 
+
       // Localize event times and day labels to the user's timezone.
       // Falls back to the UTC time rendered at build time if anything fails.
       document.querySelectorAll<HTMLElement>(".event-card").forEach((el) => {
@@ -65,6 +75,7 @@ import '../styles/global.css';
           // Keep the UTC fallback rendered at build time
         }
       });
+
     </script>
   </body>
 </html>
diff --git a/src/pages/about.astro b/src/pages/about.astro
index 9f36c4c..5c78191 100644
--- a/src/pages/about.astro
+++ b/src/pages/about.astro
@@ -18,8 +18,8 @@ import Footer from "../components/layout/Footer.astro";
                 <p>
                     The <strong>Atmosphere</strong> is the growing community of people
                     and projects building on
-                    <a href="https://atproto.com">AT Protocol</a> — the open, decentralized
-                    protocol behind <a href="https://bsky.app">Bluesky</a>
+                    <a href="https://atproto.com" rel="noopener noreferrer" target="_blank">AT Protocol</a> — the open, decentralized
+                    protocol behind <a href="https://bsky.app" rel="noopener noreferrer" target="_blank">Bluesky</a>
                     and a growing ecosystem of apps, tools, and services.
                 </p>
 
@@ -49,13 +49,13 @@ import Footer from "../components/layout/Footer.astro";
                 </p>
                 <ul>
                     <li>
-                        <a href="https://blog.atmosphere.community"
+                        <a href="https://blog.atmosphere.community" rel="noopener noreferrer" target="_blank"
                             >Subscribe to the blog</a
                         >
                         — including email newsletter
                     </li>
                     <li>
-                        <a href="https://discourse.atprotocol.community"
+                        <a href="https://discourse.atprotocol.community" rel="noopener noreferrer" target="_blank"
                             >Join the community forum</a
                         >
                         — discussions, working groups, and community coordination
@@ -64,13 +64,14 @@ import Footer from "../components/layout/Footer.astro";
                         Contribute to community open-source projects and
                         community infrastructure <a
                             href="https://tangled.org/did:plc:lehcqqkwzcwvjvw66uthu5oq"
-                            >Tangled @atmosphere.community</a
-                        > and <a href="https://github.com/ATProtocol-Community"
+                            rel="noopener noreferrer"
+                            target="_blank">Tangled @atmosphere.community</a
+                        > and <a href="https://github.com/ATProtocol-Community" rel="noopener noreferrer" target="_blank"
                             >GitHub @ATProtocol-Community</a
                         >
                     </li>
                     <li>
-                        <a href="https://bsky.app/profile/atmosphere.community"
+                        <a href="https://bsky.app/profile/atmosphere.community" rel="noopener noreferrer" target="_blank"
                             >Follow our account <code
                                 >@atmosphere.community</code
                             ></a
@@ -86,10 +87,12 @@ import Footer from "../components/layout/Footer.astro";
                     to highlight community projects of all kinds. You can
                     contribute with ideas, code, design by joining us in the <a
                         href="https://discord.com/channels/1097580399187738645/1494842659846488256"
-                        >#atmosphere-community-website</a
+                        rel="noopener noreferrer"
+                        target="_blank">#atmosphere-community-website</a
                     > channel in the Discord chat. The Github codebase is at <a
                         href="https://github.com/ATProtocol-Community/atproto-community"
-                        >@ATProtocol-Community/atproto-community</a
+                        rel="noopener noreferrer"
+                        target="_blank">@ATProtocol-Community/atproto-community</a
                     >, including issues.
                 </p>
             </div>
diff --git a/src/pages/community-content.astro b/src/pages/community-content.astro
index 311e7eb..0fd4ddf 100644
--- a/src/pages/community-content.astro
+++ b/src/pages/community-content.astro
@@ -170,7 +170,7 @@ if (shareRepo && canShareContent) {
       ) : (
         <div class="content-empty">
           <p>
-            No community content yet. <a href="https://blog.atmosphere.community">Visit the
+            No community content yet. <a href="https://blog.atmosphere.community" rel="noopener noreferrer" target="_blank">Visit the
               blog</a
             > or share content via your community account.
           </p>
diff --git a/src/pages/events.astro b/src/pages/events.astro
index 8659e57..95f65a2 100644
--- a/src/pages/events.astro
+++ b/src/pages/events.astro
@@ -70,7 +70,7 @@ if (loggedInUser) {
         </div>
       ) : (
         <div class="events-empty">
-          <p>No upcoming events right now. Check back soon or <a href="https://smokesignal.events">create one on Smoke Signal</a>.</p>
+          <p>No upcoming events right now. Check back soon or <a href="https://smokesignal.events" rel="noopener noreferrer" target="_blank">create one on Smoke Signal</a>.</p>
         </div>
       )}
 
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 548c4d2..611f84f 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -54,7 +54,7 @@ const events = (eventsResult.entries ?? [])
           ) : (
             <p class="empty-state">
               No posts yet. Check back soon or{" "}
-              <a href="https://blog.atmosphere.community">visit the blog</a>.
+              <a href="https://blog.atmosphere.community" rel="noopener noreferrer" target="_blank">visit the blog</a>.
             </p>
           )
         }
diff --git a/src/styles/global.css b/src/styles/global.css
index 5a7b0eb..7bd45c4 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -117,6 +117,18 @@ a:focus-visible {
   border-radius: 2px;
 }
 
+a[target="_blank"]:not(.btn):not(.hero-secondary):not(.post-card__link):not(.community-pill--link):not(.highlight-card):not(.event-card__details)::after {
+  content: "";
+  display: inline-block;
+  width: 0.95em;
+  height: 0.95em;
+  margin-inline-start: 0.25em;
+  vertical-align: -0.125em;
+  background-color: currentColor;
+  mask: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M19 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V7a2 2 0 0 1 2-2h6v2H5v12h12v-6zM13 3v2h4.586l-7.793 7.793l1.414 1.414L19 6.414V11h2V3z'/%3E%3C/svg%3E") center / contain no-repeat;
+  -webkit-mask: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M19 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V7a2 2 0 0 1 2-2h6v2H5v12h12v-6zM13 3v2h4.586l-7.793 7.793l1.414 1.414L19 6.414V11h2V3z'/%3E%3C/svg%3E") center / contain no-repeat;
+}
+
 h1,
 h2,
 h3,
