Third-party provider categories on Wix sites
Frameworks (99.9%), CDNs (99.9%), analytics (30.8%), tag managers (27.3%), font services (5.2%), video embeds (17.6%), and ad networks (8.6%) across 5,621 sites.
14.6% of Wix sites use marketing pixel third-party technology categories, and 89% of those sites pass all three Core Web Vitals, against 88% of all Wix sites.
99.9% of Wix sites use RUM third-party technology categories, and 92% of those sites have a good LCP, against 92% of all Wix sites.
30.8% of Wix sites use analytics third-party technology categories, and 100% of those sites have a good INP, against 100% of all Wix sites.
99.9% of Wix sites use RUM third-party technology categories, and 96% of those sites have a good CLS, against 96% of all Wix sites.
Core Web Vitals pass rate
Sites with marketing pixel third-party technology categories pass all three Core Web Vitals most often: 89%, against 88% of all Wix sites.
Sites with RUM third-party technology categories have a good LCP most often: 92%, against 92% of all Wix sites. Sites with video player third-party categories have it least often, at 89%.
Sites with analytics third-party technology categories have a good INP most often: 100%, against 100% of all Wix sites. Sites with CDN third-party categories have it least often, at 100%.
Sites with RUM third-party technology categories have a good CLS most often: 96%, against 96% of all Wix sites. Sites with tag manager third-party categories have it least often, at 94%.
Third-party technology categories usage
RUM is the most used: 99.9% of Wix sites. Marketing pixel is 14.6% of Wix sites.
How third-party categories affect the four LCP phases
Across the four LCP sub-parts in Chrome's field data, the largest gap between RUM and video player sits in time to first byte (TTFB): 343 ms median for RUM against 438 ms for video player. Overall median field LCP is 1.2s for RUM (TTFB 343 ms, load delay 478 ms, load duration 259 ms, render delay 137 ms) versus 1.3s for video player.
Across the four LCP sub-parts in Chrome's field data, the largest gap between RUM and video player sits in time to first byte (TTFB): 343 ms median for RUM against 438 ms for video player. Overall median field LCP is 1.2s for RUM (TTFB 343 ms, load delay 478 ms, load duration 259 ms, render delay 137 ms) versus 1.3s for video player.
Across the four LCP sub-parts in Chrome's field data, the largest gap between RUM and video player sits in time to first byte (TTFB): 343 ms median for RUM against 438 ms for video player. Overall median field LCP is 1.2s for RUM (TTFB 343 ms, load delay 478 ms, load duration 259 ms, render delay 137 ms) versus 1.3s for video player.
Across the four LCP sub-parts in Chrome's field data, the largest gap between RUM and video player sits in time to first byte (TTFB): 343 ms median for RUM against 438 ms for video player. Overall median field LCP is 1.2s for RUM (TTFB 343 ms, load delay 478 ms, load duration 259 ms, render delay 137 ms) versus 1.3s for video player.
Third-party technology categories per framework
On React, 100% of sites use CDN third-party technology categories, and 88% of React sites pass all three Core Web Vitals, against 88% of all sites.
On React, 100% of sites use CDN third-party technology categories, and 92% of React sites have a good LCP, against 92% of all sites.
On React, 100% of sites use CDN third-party technology categories, and 100% of React sites have a good INP, against 100% of all sites.
On React, 100% of sites use CDN third-party technology categories, and 96% of React sites have a good CLS, against 96% of all sites.
Third-party technology categories or the framework
Does the framework explain the third-party technology categories difference?
On React, 89% of sites with marketing pixel third-party technology categories pass all three Core Web Vitals, against 88% of React sites with RUM. Within React, sites with marketing pixel and RUM pass all three about equally often.
Almost every site with RUM third-party technology categories is a React site, and almost every React site has RUM third-party technology categories, so the data can't tell RUM third-party technology categories and React apart.
On React, 100% of sites with analytics third-party technology categories have a good INP, against 100% of React sites with RUM. Within React, sites with analytics and RUM have a good INP about equally often.
Almost every site with RUM third-party technology categories is a React site, and almost every React site has RUM third-party technology categories, so the data can't tell RUM third-party technology categories and React apart.
By Arjen Karel · 5,621 crawled Wix sites (728 with desktop Chrome field data, October 2026). How we measured.