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 71% of those sites pass all three Core Web Vitals, against 68% of all sites.
25.4% of sites use 2 to 4 third-party providers third-party provider count, and 88% of those sites have a good LCP, against 86% of all sites.
25.4% of sites use 2 to 4 third-party providers third-party provider count, and 99% of those sites have a good INP, against 99% of all sites.
35.9% of sites use 0 to 1 third-party providers third-party provider count, and 80% of those sites have a good CLS, against 78% 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: 71%, against 68% of all sites. The biggest gap is LCP, 88% against 86%.
Sites with 2 to 4 third-party providers third-party provider count have a good LCP most often: 88%, against 86% of all sites. Sites with 9+ third-party providers provider count have it least often, at 83%.
Sites with 2 to 4 third-party providers third-party provider count have a good INP most often: 99%, against 99% of all sites. Sites with 0 to 1 third-party providers provider count have it least often, at 99%.
Sites with 0 to 1 third-party providers third-party provider count have a good CLS most often: 80%, against 78% of all sites. Sites with 9+ third-party providers provider count have it least often, at 76%.
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 65,939 sites WordPress sites with 9+ third-party providers (12.5%) pass all three CWV at 55% vs 70% with 0 to 1 providers.
Across 65,939 WordPress sites, 24.5% load 0 to 1 external providers (70% passing all three CWV), 28.3% load 2 to 4 (64%), 34.7% load 5 to 8 (59%), and 12.5% load 9+ providers (55%).
Shopify 8,634 stores 44.6% of Shopify stores load 9+ third-party providers (80% CWV pass rate vs 90% at 2 to 4 providers).
Across Shopify storefronts, 25.9% load 2 to 4 external providers (90% all-three CWV pass rate), 29.5% load 5 to 8 (85%), and 44.6% load 9 or more providers (80%, 10 percentage points apart).
React & Next.js 9,658 sites React & Next.js sites with 9+ third-party providers (7.6%) pass all three CWV at 50% vs 78% at 0 to 1 providers (28 points apart).
Across 9,658 React sites, 43.1% load 0 to 1 external providers (78% passing all three CWV), 23.3% load 2 to 4 (69%), 26.0% load 5 to 8 (61%), and 7.6% load 9+ providers (50%).
By Arjen Karel · 212,308 crawled sites (70,213 with desktop Chrome field data, October 2026). How we measured.