speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

Charts Compare Measurement runs Embed a score Open to Work

Package ManagersWarn

Package browsers: the searchable front ends to package registries.

14 of 14 sites measured · each site every 2 days, most recently ago

Recently measured
  1. yarnpkg.com
  2. nuget.org
  3. pub.dev
  4. npmx.dev
  5. jsr.io
  6. hex.pm
  7. npmjs.com
  8. packagist.org
  9. pypi.org
  10. pkg.go.dev
  11. crates.io
  12. brew.sh
Page weight vs LCP
Third party vs performance
Perfect scores 0/14
Median Score ×14 75 95 100 92 AXE CWV
Performance ×14 Good Warn Bad Axe ×14 Good Warn Bad Core Web Vitals ×14 Passing Failing
Page weight 100k 250k 500k 1M 2.5M 5M + JavaScript Weight 0 50k 100k 250k 500k 1M + Third Party Weight 0 25k 50k 100k 250k 500k + LCP 1.5s 2s 2.5s 4s 6s 10s +

Biggest movers

Sites whose performance score improved by more than this group's normal run-to-run noise. Everything else is jitter and is deliberately hidden.

Leaderboard

Ranked by the circle color first: all green beats a row with amber, which beats red. Sites are not penalized for unknown Core Web Vitals. Tiebreakers include: sum of all four Lighthouse categories, fewest failing Core Web Vitals, then fewest axe violations, then Speed Index per KB — a heavy site outranks an empty one.

# Site Tool Host Scores Perf trend LCP CLSTBT WeightReq Lab vs field No-JS ∆
🥇#1 npmx.dev Nuxt Vercel 75 100 100 100 AXE CWV 4.46 s 0.020 361 ms 1.45 MB354 elements 124 3.8× 98.3%
🥈#2 hex.pm · · 70 100 100 100 AXE CWV 7.71 s 0.008 0 ms 2.52 MB608 elements 16 7.2× 0.1%
🥉#3 npmjs.com ·+1 Cloudflare 67 100 100 91 AXE CWV 8.10 s 0.002 169 ms 1.20 MB134 elements 21 0%
#4 nuget.org · · 81 100 96 92 AXE !CWV 4.03 s 0 55 ms 487 kB131 elements 20 1.6× 0%
#5 pub.dev · · 81 92 100 100 !AXE CWV 4.23 s 0.001 124 ms 640 kB347 elements 39 2.5× 0%
#6 pypi.org · · 90 96 96 100 AXE CWV 3.35 s 0.070 0 ms 557 kB254 elements 19 2.3× 53.5%
#7▲4 packagist.org ·+1 Bu 97 86 100 100 AXE CWV 1.80 s 0.089 23 ms 460 kB707 elements 17 1.4× 0.1%
#8 brew.sh Jekyll 4.4.1 +1 GitHub Pages 75 96 100 92 AXE CWV 9.46 s 0.012 0 ms 1.70 MB330 elements 9 7.3× 7.1%
#9 crates.io SvelteKit He 95 96 100 92 AXE !CWV 2.78 s 0.010 47 ms 200 kB658 elements 64 1.4× 76.5%EMPTY
#10 pkg.go.dev · Google Frontend 99 88 77 92 AXE CWV 1.26 s 0.005 116 ms 555 kB383 elements 36 0.9× 5.9%
#11 rubygems.org · Ru 72 87 100 91 AXE CWV 4.67 s 0.028 0 ms 597 kB193 elements 45 3.4× 0%
#12 jsr.io · Cloudflare 87 95 100 100 AXE !CWV 3.35 s 0.013 122 ms 311 kB367 elements 30 1.7× 1.8%
#13 yarnpkg.com Docusaurus 3.7.0 Netlify 71 93 96 92 AXE !CWV 6.76 s 0.002 249 ms 1.70 MB163 elements 33 3.6× 0.6%
#14 central.sonatype.com Next.js · 26 95 69 92 AXE CWV 8.04 s 0.663 1.29 s 2.76 MB568 elements 76 2.4× 74.8%

Technology

Built with 5 distinct · 5 of 14 detected

  • Docusaurus Docusaurus 1
  • Jekyll Jekyll 1
  • Next.js Next.js 1
  • Nuxt Nuxt 1
  • SvelteKit SvelteKit 1

Uses 2 distinct · 3 of 14 detected

  • Preact Preact 2
  • React React 1

Hosted by 8 distinct · 9 of 14 detected

  • Cloudflare Cloudflare 2
  • GitHub Pages GitHub Pages 1
  • Google Frontend Google Frontend 1
  • Netlify Netlify 1
  • Vercel Vercel 1
  • …and 3 one-offs