Third-party request share on React sites

Sites with under 10% third-party requests third-party request share have a good INP most often: 97%, against 95% of all React sites. Sites with over 50% third-party requests third-party share have it least often, at 92%.

Sites with 25% to 50% third-party requests third-party request share have a good LCP most often: 93%, against 85% of all React sites. Sites with under 10% third-party requests third-party share have it least often, at 64%.

25% to 50% third-party requests is the most used: 57.3% of React sites. Under 10% third-party requests is 15.0% of React sites.

WordPress sets the third-party request share to under 10% third-party requests on 54% of its sites, and 98% of WordPress sites have a good INP, against 95% of all sites. Wix sets the third-party request share to 25% to 50% third-party requests on 85% of its sites, and 97% of Wix sites have a good INP.

WordPress sets the third-party request share to under 10% third-party requests on 54% of its sites, and 61% of WordPress sites have a good LCP, against 85% of all sites. 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.

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%95%

WordPress 2,342 sitesUnder 10% third-party requests 54%10% to 25% third-party requests 31%25% to 50% third-party requests 11%98%

Wix 5,824 sites25% to 50% third-party requests 85%Over 50% third-party requests 10%97%

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, 97% of sites with 25% to 50% third-party requests third-party request share have a good INP, against 97% 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, 99% of sites with under 10% third-party requests third-party request share have a good INP, against 97% of WordPress sites with 25% to 50% third-party requests. Within WordPress, sites with under 10% third-party requests and 25% to 50% 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 87% 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, 66% of sites with 25% to 50% third-party requests third-party request share have a good LCP, against 61% 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 97% and 93% (87ms and 90ms median). When third parties account for 25% to 50% of requests (57.3%), good INP drops to 96% (75ms median), while the 14.7% over 50% sit at 92% good INP (90ms median).