The State of Web Vitals

Network resource types on Wix sites

Alongside HTML documents (100.0%), images (99.9%), scripts (100.0%), stylesheets (46.9%), and fonts (99.6%), 99.9% of audited sites (5,619) fire runtime fetch() requests (94% good LCP, 1.2s median) and 99.9% fire XMLHttpRequest calls (94% good LCP).

Field data PhoneDesktopAll Scope All sites October 2026 edition · All devices field outcomes · Wix sites only
Wix Scoped to 5,623 sites out of 203,892 analyzed (cms) Compare with all sites →

99.6% of Wix sites use font requests network resource type mix, 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
1

LCP pass rate

Sites with font requests network resource type mix have a good LCP most often: 94%, against 94% of all Wix sites. Sites with stylesheet requests resource types have it least often, at 93%.

SitesGood, needs improvement, poor LCPMedian
All Wix sites5,33394%1.2s
Web fonts 99.6%5,31194%1.2s
XMLHttpRequest (XHR) calls 99.9%5,32794%1.2s
Other resources (pings / beacons / manifests) 100.0%5,33394%1.2s
JavaScript files 100.0%5,33394%1.2s
HTML document 100.0%5,33394%1.2s
Fetch API requests 99.9%5,33194%1.2s
Images 99.9%5,33194%1.2s
CSS stylesheets 46.9%2,51593%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

Network resource type mix usage

Other resource requests is the most used: 100.0% of Wix sites. Font requests is 99.6% of Wix sites.

Sites using each option (sites can use more than one) 5,621 sites
Other resources (pings / beacons / manifests) 100.0% JavaScript files 100.0% HTML document 100.0% Fetch API requests 99.9% Images 99.9% XMLHttpRequest (XHR) calls 99.9% Web fonts 99.6%
Other resources (pings / beacons / manifests) 100.0% JavaScript files 100.0% HTML document 100.0% Fetch API requests 99.9% Images 99.9% XMLHttpRequest (XHR) calls 99.9% Web fonts 99.6% CSS stylesheets 46.9%
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 by network resource types loaded

Across the four LCP sub-parts in Chrome's field data, the largest gap between font requests and stylesheet requests sits in resource load delay: 455 ms median for font requests against 475 ms for stylesheet requests. Overall median field LCP is 1.2s for font requests (TTFB 420 ms, load delay 455 ms, load duration 136 ms, render delay 151 ms) versus 1.2s for stylesheet requests.

Median LCP phase breakdown (Chrome field p75) Load delay Median LCP
All Wix sites 3,945419 ms455 ms137 ms151 ms455 mslab 455 ms1.2s
XMLHttpRequest (XHR) calls 3,944419 ms455 ms136 ms151 ms455 mslab 455 ms1.2s
Other resources (pings / beacons / manifests) 3,945419 ms455 ms137 ms151 ms455 mslab 455 ms1.2s
HTML document 3,945419 ms455 ms137 ms151 ms455 mslab 455 ms1.2s
JavaScript files 3,945419 ms455 ms137 ms151 ms455 mslab 455 ms1.2s
Web fonts 3,929420 ms455 ms136 ms151 ms455 mslab 455 ms1.2s
Images 3,945419 ms455 ms137 ms151 ms455 mslab 455 ms1.2s
Fetch API requests 3,944419 ms455 ms136 ms151 ms455 mslab 455 ms1.2s
CSS stylesheets 1,901419 ms475 ms141 ms151 ms475 mslab 475 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

Network resource type mix per framework

React sets the network resource type mix to font requests on 100% of its sites, and 94% of React sites have a good LCP, against 94% of all sites.

FrameworkNetwork resource type mix on its sitesGood LCP
All Wix sites 5,621 sitesOther resources (pings / beacons / manifests) 100%JavaScript files 100%HTML document 100%Fetch API requests 100%Images 100%XMLHttpRequest (XHR) calls 100%Web fonts 100%CSS stylesheets 47%94%
React 5,620 sitesJavaScript files 100%HTML document 100%Other resources (pings / beacons / manifests) 100%Fetch API requests 100%Images 100%XMLHttpRequest (XHR) calls 100%Web fonts 100%CSS stylesheets 47%94%
Other resources (pings / beacons / manifests) JavaScript files HTML document Fetch API requests Images XMLHttpRequest (XHR) calls Web fonts CSS stylesheets
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

Network resource types or the framework

Does the framework explain the network resource type mix difference?

Almost every site with font requests network resource type mix is a React site, and almost every React site has font requests network resource type mix, so the data can't tell font requests network resource type mix and React apart.

How early fetch() and XHR API calls compete with critical rendering assets

Almost every web page loads an HTML document (100.0%), images (99.9%), scripts (100.0%), stylesheets (46.9%), and web fonts (99.6%, 94% good LCP at a 1.2s median). However, 99.9% of sites (5,619) also fire client-side fetch() requests during initial load (94% good LCP, 1.2s median) and 99.9% (5,614) fire XHR calls (94% good LCP, 1.2s median), often to fetch client-rendered content, A/B test configs, or cart state.

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
6

Understanding network resource types

Render above-the-fold data server-side in the initial HTML document rather than waiting on client-side fetch() or XMLHttpRequest calls during startup, and defer telemetry beacons until after LCP. Across all audited sites, 99.9% load images (94% good LCP) while 99.9% fire fetch() calls during load (94% good LCP).

Go fix it Optimize images for Core Web Vitals → 14 methods to defer JavaScript → Remove unused CSS →
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
Related signals Cookies per site → Media per page → Responsive image markup → font-display strategy → By Arjen Karel · 5,621 crawled Wix sites (5,333 with all devices Chrome field data, October 2026) · How we measured