Generator Settings
Referrer policy
no-referrer
no-referrer-when-downgrade
origin
origin-when-cross-origin
same-origin
strict-origin
strict-origin-when-cross-origin
unsafe-url
Sample page URL
Used to show exactly what each destination would receive. Note how much a full URL can carry.
Options
Include a fallback value
Two comma-separated values; browsers use the last one they understand.
Show meta tag form
For when you cannot set headers.
Generate
Reset
Generated Header
ready
Header
What leaks
Server config
Checks
Per-element overrides
Referrer-Policy
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The HTTP header is spelled
Referer
— a typo in the original 1996 specification that was never corrected. The policy directive that controls it is spelled correctly. Both spellings are right, in their own place.
Platform
Nginx
Apache / .htaccess
Express
Vercel — vercel.json
Netlify — _headers
Cloudflare Worker
nginx.conf
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