Referrer policy is a browser control that determines how much referring URL information is sent along with navigation or resource requests. It matters because URLs can contain sensitive information that should not always be exposed to downstream sites or services.
What is Referrer Policy?
A referrer policy helps control whether the browser sends the full referring URL, only the origin, or nothing at all when loading content or navigating to another page. This can reduce leakage of tokens, path details, or internal structure to third parties.
What Referrer Policy Commonly Supports
Common uses include privacy improvement, reduction of sensitive URL leakage, cleaner third-party integrations, and safer browser-request metadata handling.
Referrer Policy vs. Default Broad Referrer Sharing
Default behavior may expose more navigation context than necessary. Referrer policy narrows what the browser reveals intentionally.
Frequently Asked Questions
Why is referrer policy important?
Because URLs sometimes contain data that should not be sent widely to other sites or services.
Does it affect application functionality?
Sometimes. Some analytics or integration features rely on referrer information, so policies should be chosen deliberately.
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