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

webhint.io

https://webhint.io/

94PERF 100A11Y 100BEST 100SEO ✓AXE –CWV

Ranks Overall #374 Developer Tooling #4 Test Runners #1

Data from Oct 6, 2026, 6:53 PM UTC old Measured every 2 days · 24 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 4,257, 71% faster than this project's median of 2,486. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

GitHub Pages Hosted by GitHub Pages

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 3.00 s. Compare this filmstrip against another site.

  1. 375 ms
  2. 750 ms
  3. 1.13 s
  4. 1.50 s
  5. 1.88 s
  6. 2.25 s
  7. 2.63 s
  8. 3.00 s

Lighthouse Scores LAB Simulated

94
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics LAB

No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.

Metric Lab Simulated
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 2.13 s good ↓ -66 ms (-3%) 2.12 s – 2.64 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.131 needs work → no change 0 – 0.131
TBT Total Blocking Time 0 ms good → no change 0 ms – 125 ms
FCP First Contentful Paint 1.53 s good ↑ +18 ms (+1.2%) 1.50 s – 1.63 s
Speed Index 1.53 s good ↑ +18 ms (+1.2%) 1.50 s – 2.65 s
TTFB Time to First Byte 610 ms good ↑ +6 ms (+1%) 602 ms – 713 ms

LCP Subparts LAB Throttled

The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.

resource load duration 1.37 s
time to first byte 573 ms
element render delay 27 ms
resource load delay 22 ms

Page weight

Metric Value Change / range Trend
Page Weight 180 kB ↑ +31 B 180 kB – 181 kB
Requests 21 → no change 21 – 21
Third-party Weight 54.5 kB ↓ -11 B 54.0 kB – 55.0 kB
Third-party CPU 7 ms ↓ -3 ms (-29.3%) significant 6 ms – 16 ms
Unused JS 27.2 kB → no change 0 B – 27.2 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
font 40.3% 72.6 kB 4
script 27.9% 50.2 kB 2
image 19.8% 35.7 kB 9
stylesheet 7.9% 14.2 kB 3
document 3.5% 6.3 kB 1
other 0.6% 1.0 kB 2
Total 180 kB 21

Third parties 1 entities

Entity Transfer Size Main thread Simulated
JSDelivr CDN script 54.5 kB 7 ms
Total 54.5 kB 7 ms

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

11.8% of pixels differ — parts of the page change. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric Value Change / range Trend
Main Thread Work 276 ms ↓ -92 ms (-25.1%) significant 253 ms – 819 ms
Long Tasks 0 → no change 0 – 5
DOM Elements 191 → no change 191 – 191
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 52% 142 ms
script evaluation 17% 48 ms
style layout 16% 45 ms
script parse compile 5% 15 ms
paint composite render 5% 14 ms
parse HTML 4% 12 ms
Total 276 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 402 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 6:53 PM UTC 94 2.13 s 0.131 0 ms 180 kB 3/3 ±4 4,257 +71% 39.6s Wayback
Oct 2, 2026, 11:03 PM UTC 94 2.19 s 0.131 0 ms 180 kB 3/3 ±4 2,453 -1% 41.5s Wayback
Sep 30, 2026, 3:44 PM UTC 98 2.15 s 0 0 ms 180 kB 3/3 ±4 2,502 +1% 41.1s Wayback
Sep 28, 2026, 10:47 AM UTC 98 2.16 s 0 0 ms 180 kB 3/3 ±4 2,493 0% 40.4s Wayback
Sep 25, 2026, 12:35 AM UTC 98 2.20 s 0 5 ms 181 kB 3/3 ±4 2,487 0% 40.2s Wayback
Sep 23, 2026, 12:03 AM UTC 94 2.13 s 0.131 0 ms 180 kB 3/3 ±4 2,994 +20% 39.2s Wayback
Sep 20, 2026, 11:05 PM UTC 94 2.16 s 0.131 0 ms 180 kB 3/3 ±4 2,479 0% 40.8s Wayback
Sep 18, 2026, 1:33 PM UTC 98 2.18 s 0 0 ms 181 kB 3/3 ±5 2,931 +18% 39.3s Wayback
Sep 16, 2026, 9:14 AM UTC 94 2.13 s 0.131 0 ms 180 kB 3/3 ±5 4,101 +65% 37.9s Wayback
Sep 14, 2026, 5:59 AM UTC 98 2.16 s 0 0 ms 180 kB 3/3 ±5 2,976 +20% 38.4s Wayback
Sep 11, 2026, 11:10 PM UTC 98 2.20 s 0 4 ms 181 kB 3/3 ±5 2,009 -19% 40.8s Wayback
Sep 9, 2026, 8:41 PM UTC 94 2.14 s 0.131 0 ms 180 kB 3/3 ±4 3,418 +37% 21s Wayback
Sep 7, 2026, 7:20 PM UTC 94 2.12 s 0.131 0 ms 180 kB 3/3 ±0 2,494 0% 21.6s Wayback
Sep 5, 2026, 3:21 AM UTC 93 2.23 s 0.131 0 ms 180 kB 3/3 ±5 2,618 +5% 22.4s Wayback
Sep 4, 2026, 12:49 AM UTC 98 2.18 s 0 0 ms 181 kB 3/3 ±5 2,313 -7% 21.3s Wayback
Sep 2, 2026, 11:00 PM UTC 94 2.21 s 0.131 0 ms 180 kB 3/3 ±1 2,348 -6% 22.2s Wayback
Sep 1, 2026, 8:45 PM UTC 98 2.21 s 0 1 ms 181 kB 3/3 ±5 2,459 -1% 22.6s Wayback
Aug 31, 2026, 6:17 PM UTC 98 2.21 s 0 0 ms 180 kB 3/3 ±2 2,461 -1% 22.8s Wayback
Aug 26, 2026, 1:54 PM UTC 98 2.29 s 0 59 ms 181 kB 3/3 ±5 2,628 +6% 23s Wayback
Aug 25, 2026, 1:50 PM UTC 94 2.12 s 0.131 0 ms 180 kB 3/3 ±25 3,503 +41% 30.3s Wayback
Aug 24, 2026, 12:48 PM UTC 93 2.23 s 0.131 0 ms 180 kB 3/3 ±8 2,286 -8% 25.9s Wayback
Aug 23, 2026, 12:38 PM UTC 98 2.16 s 0 2 ms 180 kB 3/3 ±8 2,422 -3% 26s Wayback
Aug 22, 2026, 11:20 AM UTC 95 2.64 s 0 125 ms 181 kB 3/3 ±5 2,786 +12% 25s Wayback
Aug 21, 2026, 10:33 AM UTC 98 2.18 s 0 3 ms 181 kB 3/3 ±1 2,467 -1% 21.7s Wayback