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

National Rail

3 of 3 sites measured · each site once a day, most recently ago

Perfect scores 0/3
Median Score ×3 46PERF 100A11Y 73BEST 100SEO !AXE ✗CWV
Performance ×3 Good Warn Bad Axe ×3 Good Warn Bad Core Web Vitals ×3 Passing Failing
Page weight 100k 250k 500k 1M 2.5M 5M + JavaScript Weight 0 100k 250k 500k 1M 2.5M + Third Party Weight 0 100k 250k 500k 1M 2.5M + LCP 2.5s 4s 6s 10s 15s 30s +

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 Uses Host Scores Perf trend LCP CLSTBT WeightReq Lab vs field No-JS ∆
🥇#1 nationalrail.co.uk Next.js React Cloudflare 53PERF 96A11Y 73BEST 100SEO !AXE ✗CWV 8.71 s 0.083 575 ms 2.95 MB579 elements 75 6× 65.7%
🥈#2 nationalrail.co.uk/journey-planner?adults=1&destination=MAN&extraTime=0&leavingDate=141126&leavingHour=10&leavingMin=00&leavingType=departing&origin=BTN&type=single ↪ redirect Next.js React Cloudflare 46PERF 100A11Y 73BEST 100SEO !AXE ✗CWV 17.65 s 0.085 811 ms 2.77 MB1,131 elements 91 7.6× 34.3%EMPTY
🥉#3 nationalrail.co.uk/live-trains/departures/birmingham-new-street ↪ redirect Next.js React Cloudflare 27PERF 100A11Y 73BEST 100SEO !AXE ✗CWV 16.91 s 0.373 1.45 s 2.87 MB931 elements 96 7.3× 47.9%

Technology

Built with 1 distinct · 3 of 3 detected

  • Next.js Next.js 3

Uses 1 distinct · 3 of 3 detected

  • React React 3

Hosted by 1 distinct · 3 of 3 detected

  • Cloudflare Cloudflare 3