62%
of cookies set on top sites are third-party
On the top 10k sites, about 62% of all cookies set during a default page load come from third-party domains, primarily advertising and analytics vendors.
Context
Most browsers now block third-party cookies by default or are in the process of doing so, but workarounds (CNAME cloaking, server-side tagging) shift tracking into first-party form rather than removing it.
Key takeaways
- Third-party cookies are dying; first-party tracking is replacing them.
- Blocking by request, not just by cookie type, future-proofs privacy tools.
Sources
- HTTP Archive Web Almanac — Privacy chapter (2024)
Cite this statistic
NovaBlock (2026). "62% — of cookies set on top sites are third-party." Retrieved from https://novablock.app/statistics/third-party-cookie-share