VPNs don’t prevent tracking, they just make sure the tracking is done through a secure tunnel.
The extra hop adds a significant barrier for the website in knowing the actual source IP. The fake source IP is likely used by many other users, and the user you are trying to track can easily rotate VPN IPs.
Adtech relies on the OpenRTB 2.5/2.6 spec for tracking, you would have removed 1 identifier out of a hundred (one that isn’t really used anyway given SSAI is so popular). In addition to that, cookie expiry timers are typically set to 365 days meaning you’re VPN would need to enabled at all times to not invalidate multi-hop. WebStorage API based trackers tend to be indefinite.
That is not true, the sites do still track you. VPNs don’t prevent tracking, they just make sure the tracking is done through a secure tunnel.
The extra hop adds a significant barrier for the website in knowing the actual source IP. The fake source IP is likely used by many other users, and the user you are trying to track can easily rotate VPN IPs.
Its one less identifier for them to use.
Adtech relies on the OpenRTB 2.5/2.6 spec for tracking, you would have removed 1 identifier out of a hundred (one that isn’t really used anyway given SSAI is so popular). In addition to that, cookie expiry timers are typically set to 365 days meaning you’re VPN would need to enabled at all times to not invalidate multi-hop. WebStorage API based trackers tend to be indefinite.
ORTB spec: https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-API-Specification-Version-2-5-FINAL.pdf