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

unbreaking.org

https://unbreaking.org/

77PERF 100A11Y 100BEST 100SEO ✓AXE –CWV

Ranks Overall #501 Built Awesome #383

Data from Oct 5, 2026, 1:39 AM UTC old Measured once a week · 7 runs since Aug 21, 2026

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

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

Stack

Eleventy 3.1.6 Built with Eleventy 3.1.6
Uses SvelteSvelte
Cloudflare Hosted by Cloudflare

Lighthouse Scores LAB Simulated

77
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 6.54 s poor ↑ +70 ms (+1.1%) 6.47 s – 6.55 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.045 good ↑ +0.045 0 – 0.045
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 1.15 s good ↑ +70 ms (+6.5%) significant 1.07 s – 1.16 s
Speed Index 1.15 s good ↑ +70 ms (+6.5%) significant 1.07 s – 1.16 s
TTFB Time to First Byte 620 ms good ↓ -5 ms (-0.8%) 619 ms – 638 ms

LCP Subparts LAB Unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.

element render delay 134 ms
time to first byte 10 ms

Page weight

Metric Value Change / range Trend
Page Weight 1.08 MB ↑ +121 B 1.08 MB – 1.08 MB
Requests 23 → no change 23 – 23
Third-party Weight 3.4 kB ↑ +7 B (+0.2%) 3.3 kB – 3.4 kB
Third-party CPU 2 ms ↓ -0 ms (-8%) 2 ms – 4 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
font 93.4% 1.00 MB 4
script 4.5% 48.2 kB 4
image 1.1% 12.1 kB 6
document 0.5% 5.2 kB 1
other 0.3% 3.6 kB 5
stylesheet 0.2% 2.0 kB 2
Total 1.08 MB 23

Third parties 1 entities

Entity Transfer Size Main thread Simulated
umami.is scriptother 3.4 kB 2 ms
Total 3.4 kB 2 ms

Page health

Metric Value Change / range Trend
Main Thread Work 440 ms ↑ +111 ms (+33.7%) 306 ms – 450 ms
Long Tasks 1 ↑ +1 0 – 1
DOM Elements 150 → no change 150 – 156
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 45% 197 ms
style layout 39% 171 ms
script evaluation 9% 41 ms
parse HTML 3% 15 ms
paint composite render 3% 15 ms
script parse compile 1% 2 ms
Total 440 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 390 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

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-05-16 → 2026-09-26 No data — 20 weeks under the CrUX reporting threshold
2026-05-09 757 ms — 0 781 ms 334 ms
2026-05-02 752 ms — 0 756 ms 344 ms
2026-04-25 737 ms — 0 749 ms 331 ms
2026-04-18 742 ms — 0 749 ms 323 ms
2026-04-11 749 ms — 0 750 ms 296 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 5, 2026, 1:39 AM UTC 77 6.54 s 0.045 0 ms 1.08 MB 3/3 ±1 2,425 -2% 24.5s Wayback
Sep 27, 2026, 11:43 PM UTC 77 6.47 s 0 0 ms 1.08 MB 3/3 ±1 3,383 +36% 24.6s Wayback
Sep 20, 2026, 8:43 PM UTC 77 6.49 s 0 0 ms 1.08 MB 3/3 ±2 2,356 -5% 25.4s Wayback
Sep 13, 2026, 8:23 PM UTC 77 6.55 s 0.045 0 ms 1.08 MB 3/3 ±1 2,285 -8% 24s Wayback
Sep 6, 2026, 6:52 PM UTC 77 6.49 s 0 0 ms 1.08 MB 3/3 ±1 2,876 +16% 24.5s Wayback
Aug 30, 2026, 5:57 PM UTC 77 6.47 s 0.045 0 ms 1.08 MB 3/3 ±0 2,462 -1% 22.8s Wayback
Aug 21, 2026, 4:50 PM UTC 77 6.54 s 0 0 ms 1.08 MB 3/3 ±0 2,984 +20% 23.4s Wayback

Embed this score

Use this web component to show unbreaking.org's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://unbreaking.org/"></speedlify2-score>