100.0% of Wix sites use ETag validators ETag cache validation, and 94% of those sites have a good LCP, against 94% of all Wix sites.
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 5,333 with all devices field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
Sites with ETag validators ETag cache validation have a good LCP most often: 94%, against 94% of all Wix sites.
SitesGood, needs improvement, poor LCPMedian
All Wix sites5,33394%1.2s
ETag header present 100.0%5,33394%1.2s
GoodNeeds improvementPoorSites: with Chrome field data
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 5,333 with all devices field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
2
ETag cache validation usage
ETag validators is the most used: 100.0% of Wix sites.
ETag header present 100.0%
ETag header present 100.0%
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 5,333 with all devices field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
3
LCP phase breakdown for sites with and without ETag headers
Median LCP phase breakdown (Chrome field p75) Load delay Median LCP
All Wix sites 3,945419 ms455 ms137 ms151 ms455 mslab 455 ms1.2s
ETag header present 3,945419 ms455 ms137 ms151 ms455 mslab 455 ms1.2s
TTFB Resource load delay Resource load time Element render delay
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 5,333 with all devices field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
4
ETag cache validation per framework
React sets the ETag cache validation to ETag validators on 100% of its sites, and 94% of React sites have a good LCP, against 94% of all sites.
FrameworkETag cache validation on its sitesGood LCP
All Wix sites 5,621 sitesETag header present 100%94%
React 5,620 sitesETag header present 100%94% ETag header present
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 5,333 with all devices field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
5
ETag headers or the framework
Does the framework explain the ETag cache validation difference?
Almost every site with ETag validators ETag cache validation is a React site, and almost every React site has ETag validators ETag cache validation, so the data can't tell ETag validators ETag cache validation and React apart.
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 5,333 with all devices field dataBy Arjen Karel · corewebvitals.io/state-of-cwv