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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eleventy-libdoc.netlify.app

https://eleventy-libdoc.netlify.app/

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

Ranks Overall #587 Build Awesome Starters #63

Data from Oct 3, 2026, 5:48 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

Eleventy 3.1.6 Built with Eleventy 3.1.6
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

100
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 1.08 s good ↓ -49 ms (-4.3%) 1.08 s – 2.78 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.048 good → no change 0.048 – 0.048
TBT Total Blocking Time 0 ms good ↓ -5 ms (-100%) 0 ms – 38 ms
FCP First Contentful Paint 1.08 s good ↑ +26 ms (+2.5%) 1.05 s – 2.71 s
Speed Index 1.08 s good ↑ +26 ms (+2.5%) 1.05 s – 2.71 s
TTFB Time to First Byte 631 ms good ↑ +26 ms (+4.3%) 605 ms – 635 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 122 ms
time to first byte 31 ms

Page weight

Metric Value Change / range Trend
Page Weight 405 kB ↓ -174 B 405 kB – 406 kB
Requests 47 → no change 47 – 47
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 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 75.4% 306 kB 1
script 11.7% 47.5 kB 14
stylesheet 5.2% 21.1 kB 8
image 4.7% 19.1 kB 22
document 2.6% 10.6 kB 1
other 0.3% 1.3 kB 1
Total 405 kB 47

Without JavaScript

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

Scripts disabled
As rendered

8.8% of pixels differ — they are nearly 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 677 ms ↓ -59 ms (-8%) 549 ms – 736 ms
Long Tasks 1 ↓ -1 (-50%) significant 1 – 2
DOM Elements 670 → no change 670 – 670
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 2 → no change 2 – 2
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 43% 290 ms
style layout 31% 212 ms
paint composite render 10% 68 ms
script evaluation 8% 52 ms
parse HTML 5% 31 ms
script parse compile 4% 25 ms
Total 677 ms

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 1 rule, 804 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 2 nodes
    Offending elements
    1. #nav_small_devices 
      <nav id="nav_small_devices" class="d-flex | pos-fixed bottom-0 left-0 z-1 | w-100 h-60px" d-none="md">
    2. .widget-alert:nth-child(5) 
      <aside class="widget widget-alert"> <div class="alert alert-info" data-title="Quick performance info"> Transfer size of this page is around 400 kB <br>⤷ <em>you can see it on this browser developer t…

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, 5:48 PM UTC 100 1.08 s 0.048 0 ms 405 kB 3/3 ±1 2,486 0% 27.6s Wayback
Sep 26, 2026, 2:09 PM UTC 100 1.13 s 0.048 5 ms 406 kB 3/3 ±1 2,464 -1% 26.6s Wayback
Sep 19, 2026, 12:54 PM UTC 100 1.23 s 0.048 0 ms 405 kB 3/3 ±0 2,979 +20% 25.2s Wayback
Sep 12, 2026, 11:29 AM UTC 100 1.13 s 0.048 0 ms 406 kB 3/3 ±0 2,494 0% 26.4s Wayback
Sep 5, 2026, 8:05 AM UTC 100 1.22 s 0.048 0 ms 405 kB 3/3 ±13 3,329 +34% 26.1s Wayback
Aug 29, 2026, 5:47 AM UTC 91 2.78 s 0.048 29 ms 405 kB 3/3 ±4 2,470 -1% 27.7s Wayback
Aug 20, 2026, 9:34 PM UTC 100 1.24 s 0.048 38 ms 405 kB 3/3 ±1 2,301 -7% 26.3s Wayback

Embed this score

Use this web component to show eleventy-libdoc.netlify.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://eleventy-libdoc.netlify.app/"></speedlify2-score>