4 ms·
Looks like this will stop (after 24 hours) some companies from doing an initial redirection to set cookies for tracking purposes... Example: 1. Search Google
by frio80 9y ago
Looks like this will stop (after 24 hours) some companies from doing an initial redirection to set cookies for tracking purposes... Example:
1. Search Google for hockey sticks
2. Click on search result hockeystick.com
3. hockeystick.com issues a 302 to adcompany.com which then issues a 302 back to hockeystick.com
Why the 302? Because in Safari, you could only access cookies in a 3rd party context if you've seen a domain in a 1st party context. Setting a cookie in adcompany.com in a 1st party context gives you the ability to read that cookie in a 3rd party context which could be used for tracking purposes.
- YPCrumble 9y agoWoah - is this what companies that "rent" other companies' pixels like perfect audience are doing to get the pixel data?
- flukus 9y agoWon't the browser show an error about a circular redirect? Or does that take a few bounces?
- styfle 9y agoIt wouldn't be circular if the URL was different, for example: website.com ad.com?u=website.com website.com?loaded
- frio80 9y agoThe URLS would be different. Companies also rewrite internal links as you're navigating a site to accomplish the same thing. Example: https://baycloud.com/thirdparty-redirect https://baycloud.com/thirdparty-redirect