Referer Lab

Each test below reaches /inspect (or /img), which echoes exactly what your browser sent. Watch the server console (wrangler tail) or open /log for a rolling list.

1. Referrer-Policy of THIS page

Current: strict-origin-when-cross-origin

Pick a policy; the page reloads with that Referrer-Policy response header, then re-run the tests:

no-referrer no-referrer-when-downgrade origin origin-when-cross-origin same-origin strict-origin strict-origin-when-cross-origin unsafe-url

2. Full-page navigations

3. JavaScript navigations

Meta refresh page (waits 2s, then refreshes into /inspect)

4. Forms

5. Subresources

Image below is requested from /img — its Referer appears in the console and /log, not here:

test pixel

fetch() with explicit referrerPolicy — result shows what the server received:

(fetch results appear here)