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.

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bucolic-pegasus-5dab5c.netlify.app

https://bucolic-pegasus-5dab5c.netlify.app/

99PERF 82A11Y 100BEST 91SEO ✗AXE –CWV

Ranks Overall #1,380 Build Awesome Starters #150

Data from Oct 3, 2026, 7:43 AM 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

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 4,417, 78% 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

Eleventy 2.0.0 Built with Eleventy 2.0.0
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

99
Performance
no change
82
Accessibility
no change
100
Best Practices
no change
91
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 1.83 s good ↑ +25 ms (+1.4%) 1.80 s – 1.83 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 1.55 s good ↑ +36 ms (+2.4%) 1.51 s – 1.55 s
Speed Index 1.55 s good ↑ +36 ms (+2.4%) 1.51 s – 1.55 s
TTFB Time to First Byte 634 ms good ↑ +25 ms (+4.1%) 604 ms – 634 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.

resource load duration 118 ms
time to first byte 33 ms
element render delay 15 ms
resource load delay 7 ms

Page weight

Metric Value Change / range Trend
Page Weight 521 kB ↑ +141 B 520 kB – 521 kB
Requests 14 → no change 14 – 14
Third-party Weight 12.3 kB ↑ +229 B (+1.9%) 12.1 kB – 12.3 kB
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 12.0 kB ↑ +18 B (+0.1%) 12.0 kB – 12.0 kB

By resource type

Type Transfer Share Size Requests
image 90.1% 469 kB 5
script 4.3% 22.5 kB 1
stylesheet 3.1% 16.3 kB 2
other 1.7% 9.0 kB 5
document 0.7% 3.8 kB 1
Total 521 kB 14

Third parties 1 entities

Entity Transfer Size Main thread Simulated
JSDelivr CDN stylesheet 12.3 kB 0 ms
Total 12.3 kB 0 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 145 ms ↓ -47 ms (-24.5%) significant 145 ms – 192 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 66 → no change 66 – 66
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 11 → no change 11 – 11
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 9 → no change 9 – 9

Main thread work

Task Time Share Duration Simulated
other 55% 79 ms
script evaluation 17% 24 ms
style layout 11% 15 ms
parse HTML 9% 12 ms
paint composite render 6% 8 ms
script parse compile 4% 5 ms
Total 145 ms

Axe violations axe-core 4.13.0, full rule set

11 violating nodes across 3 rules, 112 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 8 nodes
    Offending elements (5 of 8)
    1. .py-5:nth-child(1) > .px-3.py-3.col-12 > .btn.btn-light.btn-sm:nth-child(3) 
      <a class="btn text-muted btn-light btn-sm me-2">WebXR </a>
    2. .py-5:nth-child(1) > .px-3.py-3.col-12 > .btn.btn-light.btn-sm:nth-child(4) 
      <a class="btn text-muted btn-light btn-sm me-2">Data Visualization </a>
    3. .py-5:nth-child(1) > .px-3.py-3.col-12 > .btn.btn-light.btn-sm:nth-child(5) 
      <a class="btn text-muted btn-light btn-sm me-2">UI/UX</a>
    4. .py-5:nth-child(2) > .px-3.py-3.col-12 > .btn.btn-light.btn-sm:nth-child(3) 
      <a class="btn text-muted btn-light btn-sm me-2">Unity </a>
    5. .py-5:nth-child(2) > .px-3.py-3.col-12 > .btn.btn-light.btn-sm:nth-child(4) 
      <a class="btn text-muted btn-light btn-sm me-2">Hololens 2 </a>
  • moderate region — All page content should be contained by landmarks 2 nodes
    Offending elements
    1. .position-absolute 
      <img class="w-100 position-absolute" style="z-index:-10; height:45vh; object-fit:cover;overflow: hidden;" src="./img/main_bg.png">
    2. .py-vh-4 
      <div class="container py-vh-4 mt-5 pt-0">
  • critical image-alt — Images must have alternative text 1 node
    Offending element
    1. .position-absolute 
      <img class="w-100 position-absolute" style="z-index:-10; height:45vh; object-fit:cover;overflow: hidden;" src="./img/main_bg.png">

Accessibility failures 2 of 14 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 8 nodes
  • image-alt — Image elements do not have `[alt]` attributes 1 node

SEO failures 1 of 8 audits

  • image-alt — Image elements do not have `[alt]` attributes 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 3, 2026, 7:43 AM UTC 99 1.83 s 0 0 ms 521 kB 3/3 ±1 4,417 +78% 21.8s Wayback
Sep 25, 2026, 11:57 PM UTC 99 1.81 s 0 0 ms 521 kB 3/3 ±0 2,485 0% 22.1s Wayback
Sep 18, 2026, 8:34 PM UTC 99 1.83 s 0 0 ms 521 kB 3/3 ±0 2,325 -6% 23.1s Wayback
Sep 11, 2026, 5:40 PM UTC 99 1.80 s 0 0 ms 521 kB 3/3 ±1 2,449 -1% 22.5s Wayback
Sep 4, 2026, 2:56 PM UTC 99 1.83 s 0 0 ms 521 kB 3/3 ±1 2,494 0% 23.2s Wayback
Aug 28, 2026, 1:55 PM UTC 99 1.80 s 0 0 ms 521 kB 3/3 ±1 2,358 -5% 21.7s Wayback
Aug 20, 2026, 7:07 PM UTC 99 1.82 s 0 0 ms 520 kB 3/3 ±0 3,008 +21% 21.5s Wayback

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