Svelte — Core Web Vitals

68.0% of Svelte sites pass all three Core Web Vitals

#3 of 11 frameworks by overall pass rate
Add TTFB and only 56.0% still pass
Runs on 0.2% of all sites measured (467 crawled Svelte sites, 250 with desktop field data)

The distribution, not just the median

Each bar is the good / needs-work / poor split for Svelte. The marks where the whole fleet sits, so you can see who is ahead and who is behind.

LCP 1.9s p75

88.0% good ▲ fleet 86.1%

INP 86ms p75

98.2% good ▼ fleet 98.9%

CLS 0.08 p75

78.3% good ▲ fleet 77.9%

TTFB diagnostic 822ms p75

74.4% good ▲ fleet 63.1%

FCP diagnostic 1.3s p75

86.9% good ▲ fleet 82.3%

Svelte is strong across the board. Even its weakest metric, INP (98.2% good), is ahead of the fleet’s 98.9%. The fingerprint shows the habits behind it.

framework standings

#1 htmx 75.3% #2 Alpine 73.8% #3 Svelte 68.0% #4 jQuery 67.1% #5 Remix 65.5% #6 React 63.5% #7 Vue 60.1% #8 Next.js 57.7% #9 Gatsby 55.8% #10 Nuxt 51.1% #11 Angular 38.5%

All frameworks →

210,902 crawled sites (69,745 with desktop Chrome field data), representing millions of real page loads, October 2026 edition. How we measured.