Third-party provider count and the Core Web Vitals
How many distinct third-party services the page embeds.
35.9% of sites use 0 to 1 third-party providers third-party provider count, and 73% of those sites pass all three Core Web Vitals, against 70% of all sites.
35.9% of sites use 0 to 1 third-party providers third-party provider count, and 86% of those sites have a good LCP, against 82% of all sites.
25.4% of sites use 2 to 4 third-party providers third-party provider count, and 94% of those sites have a good INP, against 92% of all sites.
35.9% of sites use 0 to 1 third-party providers third-party provider count, and 91% of those sites have a good CLS, against 89% of all sites.
Core Web Vitals pass rate
Sites with 0 to 1 third-party providers third-party provider count pass all three Core Web Vitals most often: 73%, against 70% of all sites. The biggest gap is LCP, 86% against 82%.
Sites with 0 to 1 third-party providers third-party provider count have a good LCP most often: 86%, against 82% of all sites. Sites with 9+ third-party providers provider count have it least often, at 76%.
Sites with 2 to 4 third-party providers third-party provider count have a good INP most often: 94%, against 92% of all sites. Sites with 9+ third-party providers provider count have it least often, at 88%.
Sites with 0 to 1 third-party providers third-party provider count have a good CLS most often: 91%, against 89% of all sites. Sites with 9+ third-party providers provider count have it least often, at 85%.
Third-party provider count usage
0 to 1 third-party providers is the most used: 35.9% of sites.
How third-party provider count plays out per platform
What the field data shows when you isolate a single CMS or framework.
WordPress 63,295 sites WordPress sites with 9+ third-party providers (12.5%) pass all three CWV at 53% vs 71% with 0 to 1 providers.
Across 63,295 WordPress sites, 24.4% load 0 to 1 external providers (71% passing all three CWV), 28.3% load 2 to 4 (65%), 34.8% load 5 to 8 (60%), and 12.5% load 9+ providers (53%).
Shopify 8,246 stores 44.7% of Shopify stores load 9+ third-party providers (79% CWV pass rate vs 94% at 2 to 4 providers).
Across Shopify storefronts, 25.9% load 2 to 4 external providers (94% all-three CWV pass rate), 29.5% load 5 to 8 (89%), and 44.7% load 9 or more providers (79%, 15 percentage points apart).
React & Next.js 9,218 sites React & Next.js sites with 9+ third-party providers (7.7%) pass all three CWV at 49% vs 84% at 0 to 1 providers (35 points apart).
Across 9,218 React sites, 43.3% load 0 to 1 external providers (84% passing all three CWV), 23.0% load 2 to 4 (75%), 26.1% load 5 to 8 (65%), and 7.7% load 9+ providers (49%).
By Arjen Karel · 203,892 crawled sites (122,633 with phone Chrome field data, October 2026). How we measured.