Referrer hiding: what it does and when it is appropriate
The Referer header tells the destination where a visitor came from. Sometimes that is exactly what you do not want.
By ShortFreeURL Team · 7 July 2026
What the header does
When a browser follows a link, it usually sends a Referer header naming the page the visitor came from. Destination sites use it for their own analytics — and it can leak information you did not mean to share.
Legitimate reasons to suppress it
A private internal page whose URL should not appear in a third party's analytics. A campaign where you do not want a competitor's tool to see which of your properties is sending traffic. Affiliate arrangements where the referrer is commercially sensitive.
How it is implemented
Either a Referrer-Policy header set to no-referrer, or replacing the original referrer with the short domain so the destination sees your link domain instead of the originating page. The second preserves some attribution while hiding specifics.
The cost
The destination loses referrer-based attribution, which can matter if it is your own site or a partner who reports on channel performance. Some affiliate networks require an accurate referrer and will reject traffic without one.
Use UTMs instead where you can
If the goal is clean attribution rather than secrecy, UTM parameters do the job explicitly and survive referrer suppression. Hide the referrer only when you genuinely need the destination not to know.
Browsers already strip a lot
Modern browsers default to strict-origin-when-cross-origin, sending only the origin rather than the full path. Much of what people worry about is already handled — check what actually leaks before adding a rule.