What is server-side tracking in ecommerce?
Collecting analytics and ad events on your own server or edge infrastructure instead of through third-party browser scripts - so blockers and cookie limits cannot strip the data.
Traditional (client-side) tracking runs in the shopper's browser: third-party scripts read cookies and send events to analytics and ad platforms. Server-side tracking collects those events on infrastructure you control and forwards them server-to-server.
The practical wins: conversions invisible to blockers are recovered, journeys survive cookie expiration, and your data quality stops depending on each visitor's browser settings. The obligations do not change - consent and privacy rules apply to the data wherever it is collected.