Network domain count on React sites

How many distinct third-party domains the page contacts.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Phone field outcomes · React sites only
React Scoped to 9,570 sites out of 210,902 analyzed (frameworks) Compare with all sites →

61.1% of React sites use 8 to 14 domains distinct network domain count, and 80% of those sites pass all three Core Web Vitals, against 74% of all React sites.

The State of Web Vitals · October 2026 · React: 9,570 crawled sites · 5,488 with phone field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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Core Web Vitals pass rate

Sites with 8 to 14 domains distinct network domain count pass all three Core Web Vitals most often: 80%, against 74% of all React sites. The biggest gap is LCP, 88% against 84%.

SitesAll three good · at least one needs improvement · at least one poor
All React sites5,48874%
8 to 14 domains 61.1%3,29480%
1 to 3 domains 5.3%29469%
4 to 7 domains 17.1%92367%
15+ domains 16.5%97763%
GoodNeeds improvementPoorSites: with Chrome field data
The State of Web Vitals · October 2026 · React: 9,570 crawled sites · 5,488 with phone field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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Distinct network domain count usage

8 to 14 domains is the most used: 61.1% of React sites.

8 to 14 domains 61.1% 4 to 7 domains 17.1% 15+ domains 16.5%
8 to 14 domains 61.1% 4 to 7 domains 17.1% 15+ domains 16.5% 1 to 3 domains 5.3%
The State of Web Vitals · October 2026 · React: 9,570 crawled sites · 5,488 with phone field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
3

Distinct network domain count per platform

Wix sets the distinct network domain count to 8 to 14 domains on 77% of its sites, and 89% of Wix sites pass all three Core Web Vitals, against 74% of all sites.

PlatformDistinct network domain count on its sitesPass all three
All React sites 9,570 sites8 to 14 domains 61%4 to 7 domains 17%15+ domains 17%74%
Wix 5,824 sites8 to 14 domains 77%15+ domains 15%89%
WordPress 2,342 sites8 to 14 domains 36%4 to 7 domains 32%15+ domains 16%1 to 3 domains 15%55%
8 to 14 domains 4 to 7 domains 15+ domains 1 to 3 domains
The State of Web Vitals · October 2026 · React: 9,570 crawled sites · 5,488 with phone field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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Network domain count or the platform

Does the platform explain the distinct network domain count difference?

On Wix, 90% of sites with 8 to 14 domains distinct network domain count pass all three Core Web Vitals, against 92% of Wix sites with 4 to 7 domains. Within Wix, sites with 8 to 14 domains and 4 to 7 domains pass all three about equally often. On WordPress, 51% of sites with 8 to 14 domains distinct network domain count pass all three Core Web Vitals, against 60% of WordPress sites with 4 to 7 domains. Within WordPress, sites with 8 to 14 domains and 4 to 7 domains pass all three about equally often.

The State of Web Vitals · October 2026 · React: 9,570 crawled sites · 5,488 with phone field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
Related signals Responsive image markup → Stylesheet loading mix → Image format mix → Images per page → By Arjen Karel · 9,570 crawled React sites (5,488 with phone Chrome field data, October 2026) · How we measured