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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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eleventy-test-bed-dollplayer2501.netlify.app

https://eleventy-test-bed-dollplayer2501.netlify.app/

100PERF 90A11Y 100BEST 80SEO ✗AXE –CWV

Ranks Overall #1,395 Build Awesome Starters #152

Data from Oct 10, 2026, 7:52 PM UTC old Measured once a week · 8 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

Eleventy 2.0.1 Built with Eleventy 2.0.1
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

100
Performance
no change
90
Accessibility
no change
100
Best Practices
no change
80
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 800 ms good ↑ +3 ms (+0.4%) 797 ms – 1.09 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 88 ms good ↑ +7 ms (+8.6%) 45 ms – 88 ms
FCP First Contentful Paint 800 ms good ↑ +3 ms (+0.4%) 797 ms – 1.09 s
Speed Index 800 ms good ↑ +3 ms (+0.4%) 797 ms – 1.09 s
TTFB Time to First Byte 636 ms good ↑ +8 ms (+1.3%) 603 ms – 636 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 101 ms
time to first byte 38 ms

Page weight

Metric Value Change / range Trend
Page Weight 277 kB ↑ +2.1 kB (+0.8%) 268 kB – 277 kB
Requests 11 → no change 11 – 11
Third-party Weight 171 kB ↑ +1.8 kB (+1.1%) 161 kB – 171 kB
Third-party CPU 62 ms ↑ +2 ms (+4.1%) 49 ms – 62 ms
Unused JS 94.7 kB ↓ -1.2 kB (-1.2%) 92.0 kB – 95.8 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 89.3% 204 kB 2
image 5.2% 11.8 kB 4
stylesheet 4.5% 10.4 kB 2
document 1% 2.4 kB 1
Total 277 kB 11

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 171 kB 62 ms
Total 171 kB 62 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 471 ms ↓ -23 ms (-4.6%) 420 ms – 498 ms
Long Tasks 2 ↓ -1 (-33.3%) significant 2 – 3
DOM Elements 92 → no change 92 – 92
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 19 → no change 19 – 19
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 18 → no change 18 – 18

Main thread work

Task Time Share Duration Simulated
script evaluation 54% 256 ms
other 22% 103 ms
script parse compile 11% 52 ms
style layout 7% 33 ms
parse HTML 3% 12 ms
garbage collection 2% 11 ms
paint composite render 1% 6 ms
Total 471 ms

Axe violations axe-core 4.13.0, full rule set

19 violating nodes across 3 rules, 152 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 17 nodes
    Offending elements (5 of 17)
    1. h2 > strong 
      <strong>Home</strong>
    2. h2 > small 
      <small>(August 21, 2022 01:01:01)</small>
    3. li:nth-child(1) > a[href$="test01/"] 
      <a href="/test01/">Test 01 page</a>
    4. div:nth-child(1) > ul > li:nth-child(2) > a[href$="test02/"] 
      <a href="/test02/">Test 02 page, using lightbox2</a>
    5. li:nth-child(3) > a[href$="test03/"] 
      <a href="/test03/">Test 03 page, using eleventy-plugin-toc</a>
  • serious link-in-text-block — Links must be distinguishable without relying on color 1 node
    Offending element
    1. a:nth-child(5) 
      <a href="https://github.com/dollplayer2501/Eleventy-test-bed/commit/9b21111">9b21111</a>
  • moderate region — All page content should be contained by landmarks 1 node
    Offending element
    1. .github-corner 
      <a href="https://github.com/dollplayer2501/Eleventy-test-bed" class="github-corner" aria-label="View source on GitHub">

Accessibility failures 2 of 19 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 17 nodes
  • link-in-text-block — Links rely on color to be distinguishable. 1 node

SEO failures 2 of 7 audits

  • meta-description — Document does not have a meta description
  • crawlable-anchors — Links are not crawlable 1 item

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 10, 2026, 7:52 PM UTC 100 800 ms 0 88 ms 277 kB 3/3 ±2 2,479 0% 24.1s Wayback
Oct 3, 2026, 5:48 PM UTC 100 797 ms 0 81 ms 275 kB 3/3 ±26 2,495 0% 23.9s Wayback
Sep 26, 2026, 2:10 PM UTC 100 1.07 s 0 52 ms 274 kB 3/3 ±1 2,508 +1% 23.3s Wayback
Sep 19, 2026, 12:54 PM UTC 100 1.07 s 0 52 ms 273 kB 3/3 ±0 2,333 -6% 23.3s Wayback
Sep 12, 2026, 11:29 AM UTC 100 1.08 s 0 45 ms 272 kB 3/3 ±4 2,629 +6% 22.7s Wayback
Sep 5, 2026, 8:05 AM UTC 100 1.07 s 0 72 ms 272 kB 3/3 ±1 2,475 -1% 22.9s Wayback
Aug 29, 2026, 5:47 AM UTC 100 1.09 s 0 57 ms 269 kB 3/3 ±3 2,307 -7% 23.4s Wayback
Aug 20, 2026, 9:33 PM UTC 100 1.07 s 0 62 ms 268 kB 3/3 ±0 2,291 -8% 22.9s Wayback

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