diff --git a/Caddyfile b/Caddyfile
index 3b2a2aa..f3e3ee3 100644
--- a/Caddyfile
+++ b/Caddyfile
@@ -33,6 +33,9 @@
       header_down Permissions-Policy "accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), clipboard-read=(), display-capture=(), document-domain=(), encrypted-media=(), fullscreen=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), screen-wake-lock=(), serial=(), usb=(), sync-xhr=(), xr-spatial-tracking=()"
       header_down Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https://haveibeenpwned.com/ https://www.gravatar.com; child-src 'self' https://*.duosecurity.com https://*.duofederal.com; frame-src 'self' https://*.duosecurity.com https://*.duofederal.com; connect-src 'self' https://api.pwnedpasswords.com/range/ https://2fa.directory/api/ https://app.simplelogin.io/api/https://app.anonaddy.com/api/ https://api.fastmail.com/; object-src 'self' blob:; frame-ancestors 'self' chrome-extension://nngceckbapebfimnlniiiahkandclblb chrome-extension://jbkfoedolllekgbhcbcoahefnbanhhlh moz-extension://*; block-all-mixed-content; base-uri 'none'"
       header_down X-XSS-Protection "0"
+      header_down Cross-Origin-Opener-Policy same-origin
+      header_down Cross-Origin-Embedder-Policy require-corp
+      header_down Cross-Origin-Resource-Policy : same-origin
       header_down Expect-CT: "enforce, max-age=63072000"
   }
-}
\ No newline at end of file
+}