Referrer-Policy checker

What is a Referrer-Policy Checker?

The Referrer-Policy Checker reports whether a website sends a Referrer-Policy HTTP header, which controls how much referrer information (the URL the user came from) browsers share when navigating away from the page.

Why It Matters

• Privacy — Without a policy set, browsers may leak the full originating URL — including any sensitive query parameters — to every external site a user clicks through to.
• Recommended default — strict-origin-when-cross-origin is a commonly recommended balance, sending the full URL for same-origin requests but only the origin for cross-origin ones.
• Analytics impact — A missing or overly strict policy can also affect referrer-based analytics reporting on sites that link to you.