does php redirect pass referrer?

Does php redirect pass referrer?

For example when visitors from site A visit Site B, then Site B (php redirect) redirects to Site C. Does site C see site A as referrer?

Thanks

 

No, your browser passes it. (Some browsers don't)... And that's why you can't rely on it.

 

So you mean sometimes Site C will see blank as referrer and sometimes Site B but never Site A?

 

The PHP header Location will not change the referral. The browser will hit it and jump forward, thus as if it skipped the file and will reference the page before that as the referral.

 

What about this?

<?
header( 'refresh: 0; url=http://google.com' );
?>

Code (markup):

 

That's not correct. Site C will see site A as referrer.

Jean-Luc

 

nico_swd is correct, some browsers will pass this others will not.

In my experience more often than not the referrer will not be site A.