diff --git a/apps/web/src/app/blog/layout.tsx b/apps/web/src/app/blog/layout.tsx
new file mode 100644
index 00000000..81a4d82c
--- /dev/null
+++ b/apps/web/src/app/blog/layout.tsx
@@ -0,0 +1,21 @@
+import Script from 'next/script';
+
+/**
+ * Every blog page carries one CrawlProof unit under the post: the text strip,
+ * filled by ad.js, which collapses to nothing when there is no advertiser.
+ * The tracker is in the root layout; this is the ads half of the blog's
+ * defaults (tracking + ads, both on).
+ */
+export default function BlogLayout({ children }: { children: React.ReactNode }) {
+  return (
+    <>
+      {children}
+      <aside
+        data-cp-ad=""
+        data-slot="edebbd57-5071-42f5-87b0-1267df95eb2f"
+        data-format="text_link"
+      />
+      <Script src="https://crawlproof.com/ad.js" strategy="afterInteractive" />
+    </>
+  );
+}