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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.

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11ty-notes.vercel.app

https://11ty-notes.vercel.app/

98PERF 100A11Y 100BEST 90SEO !AXE –CWV

Ranks Overall #820 Build Awesome Starters #102

Data from Oct 2, 2026, 10:57 PM UTC old Measured once a week · 7 runs since Aug 20, 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

Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

98
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
90
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 1.81 s good ↓ -9 ms (-0.5%) 1.81 s – 1.84 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0 good → no change 0 – 0
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 1.81 s needs work ↓ -9 ms (-0.5%) 1.81 s – 1.84 s
Speed Index 1.81 s good ↓ -9 ms (-0.5%) 1.81 s – 1.84 s
TTFB Time to First Byte 607 ms good ↓ -4 ms (-0.7%) 607 ms – 633 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 47 ms
time to first byte 4 ms

Page weight

Metric Value Change / range Trend
Page Weight 35.2 kB ↓ -1.2 kB (-3.4%) 35.2 kB – 36.4 kB
Requests 4 → no change 4 – 4
Third-party Weight 34.3 kB ↓ -1.2 kB (-3.5%) 34.3 kB – 35.6 kB
Third-party CPU 2 ms ↑ +0 ms (+10%) 2 ms – 2 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 26.9 kB ↓ -26 B (-0.1%) 26.9 kB – 27.0 kB

By resource type

Type Transfer Share Size Requests
stylesheet 80.5% 28.4 kB 2
script 17% 6.0 kB 1
document 2.5% 877 B 1
Total 35.2 kB 4

Third parties 1 entities

Entity Transfer Size Main thread Simulated
JSDelivr CDN stylesheetscript 34.3 kB 2 ms
Total 34.3 kB 2 ms

Without JavaScript

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

Scripts disabled
As rendered

0% of pixels differ — they are identical. 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 138 ms ↑ +8 ms (+6.4%) 100 ms – 138 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 28 → no change 28 – 28
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 2 → no change 2 – 5
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 51% 70 ms
style layout 25% 34 ms
script evaluation 11% 16 ms
parse HTML 9% 12 ms
script parse compile 2% 3 ms
paint composite render 1% 2 ms
Total 138 ms

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 2 rules, 44 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

SEO failures 1 of 7 audits

  • link-text — Links do not have descriptive text 2 items

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 2, 2026, 10:57 PM UTC 98 1.81 s 0 0 ms 35.2 kB 3/3 ±2 2,456 -1% 21.7s Wayback
Sep 25, 2026, 11:18 AM UTC 98 1.82 s 0 0 ms 36.4 kB 3/3 ±0 2,458 -1% 19.9s Wayback
Sep 18, 2026, 8:51 AM UTC 98 1.83 s 0 0 ms 36.4 kB 3/3 ±1 2,468 -1% 20.4s Wayback
Sep 11, 2026, 8:40 AM UTC 98 1.82 s 0 0 ms 35.5 kB 3/3 ±0 2,320 -7% 19.7s Wayback
Sep 4, 2026, 5:43 AM UTC 98 1.84 s 0 0 ms 35.6 kB 3/3 ±1 3,290 +32% 20.3s Wayback
Aug 28, 2026, 1:20 AM UTC 98 1.81 s 0 0 ms 35.6 kB 3/3 ±1 2,454 -1% 21.1s Wayback
Aug 20, 2026, 7:04 PM UTC 98 1.83 s 0 0 ms 35.6 kB 3/3 ±0 2,348 -6% 19.7s Wayback

Embed this score

Use this web component to show 11ty-notes.vercel.app'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://11ty-notes.vercel.app/"></speedlify2-score>