Third-party request share on React sites

Sites with 25% to 50% third-party requests third-party request share have a good INP most often: 94%, against 92% of all React sites. Sites with over 50% third-party requests third-party share have it least often, at 89%.

Sites with 25% to 50% third-party requests third-party request share have a good LCP most often: 92%, against 84% of all React sites. Sites with under 10% third-party requests third-party share have it least often, at 66%.

25% to 50% third-party requests is the most used: 57.3% of React sites.

Wix sets the third-party request share to 25% to 50% third-party requests on 85% of its sites, and 96% of Wix sites have a good INP, against 92% of all sites. WordPress sets the third-party request share to under 10% third-party requests on 54% of its sites, and 96% of WordPress sites have a good INP.

Wix sets the third-party request share to 25% to 50% third-party requests on 85% of its sites, and 94% of Wix sites have a good LCP, against 84% of all sites. WordPress sets the third-party request share to under 10% third-party requests on 54% of its sites, and 63% of WordPress sites have a good LCP.

PlatformThird-party request share on its sitesGood INP

All React sites 9,570 sites25% to 50% third-party requests 57%Under 10% third-party requests 15%Over 50% third-party requests 15%10% to 25% third-party requests 13%92%

Wix 5,824 sites25% to 50% third-party requests 85%Over 50% third-party requests 10%96%

WordPress 2,342 sitesUnder 10% third-party requests 54%10% to 25% third-party requests 31%25% to 50% third-party requests 11%96%

25% to 50% third-party requests Under 10% third-party requests Over 50% third-party requests 10% to 25% third-party requests

Does the platform explain the third-party request share difference?

On Wix, 96% of sites with 25% to 50% third-party requests third-party request share have a good INP, against 96% of Wix sites with over 50% third-party requests. Within Wix, sites with 25% to 50% third-party requests and over 50% third-party requests have a good INP about equally often. On WordPress, 93% of sites with 25% to 50% third-party requests third-party request share have a good INP, against 97% of WordPress sites with under 10% third-party requests. Within WordPress, sites with 25% to 50% third-party requests and under 10% third-party requests have a good INP about equally often.

On Wix, 95% of sites with 25% to 50% third-party requests third-party request share have a good LCP, against 91% of Wix sites with over 50% third-party requests. Within Wix, sites with 25% to 50% third-party requests have a good LCP more often. On WordPress, 64% of sites with 25% to 50% third-party requests third-party request share have a good LCP, against 63% of WordPress sites with under 10% third-party requests. Within WordPress, sites with 25% to 50% third-party requests and under 10% third-party requests have a good LCP about equally often.

How external request share shapes main-thread contention and INP

Third-party request share measures the fraction of page requests served from external origins. Across 1,433 sites (15.0%) keeping third-party traffic under 10% and 1,249 sites (13.1%) between 10% and 25%, good INP reaches 94% and 89% (99ms and 106ms median). When third parties account for 25% to 50% of requests (57.3%), good INP drops to 94% (81ms median), while the 14.7% over 50% sit at 89% good INP (103ms median).