diff --git a/index.html b/index.html
index 77c5869..a98ae0d 100644
--- a/index.html
+++ b/index.html
@@ -5,10 +5,12 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <!-- Defense-in-depth: the app's only threat surface is file-derived content
          rendered into the DOM. A strict script-src blocks any injected script
-         even if escaping is ever incomplete. No third-party/network resources. -->
+         even if escaping is ever incomplete. The only permitted third-party
+         origins are Cloudflare Web Analytics (beacon script + RUM endpoint),
+         which Cloudflare Pages injects automatically. -->
     <meta
       http-equiv="Content-Security-Policy"
-      content="default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; connect-src 'self'; worker-src 'self' blob:; object-src 'none'; base-uri 'self'; form-action 'none'"
+      content="default-src 'self'; script-src 'self' https://static.cloudflareinsights.com; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; connect-src 'self' https://cloudflareinsights.com; worker-src 'self' blob:; object-src 'none'; base-uri 'self'; form-action 'none'"
     />
     <title>Cave Survey Viewer</title>
     <meta name="google-site-verification" content="yhJBw46UtDk7-YZn_gDqYoYJpHEHPOMHRE065-Nohf4" />