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-notist-example.netlify.app

https://eleventy-notist-example.netlify.app/

100PERF 89A11Y 100BEST 90SEO ✗AXE –CWV

Ranks Overall #1,334 Built Awesome #909

Data from Oct 3, 2026, 5:49 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

Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

100
Performance
no change
89
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 804 ms good ↓ -251 ms (-23.8%) significant 777 ms – 1.05 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 804 ms good ↑ +25 ms (+3.2%) 777 ms – 847 ms
Speed Index 804 ms good ↑ +25 ms (+3.2%) 777 ms – 847 ms
TTFB Time to First Byte 629 ms good ↑ +24 ms (+4%) 604 ms – 680 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.

time to first byte 31 ms
element render delay 27 ms

Page weight

Metric Value Change / range Trend
Page Weight 17.1 kB ↑ +46 B (+0.3%) 1.9 kB – 17.1 kB
Requests 2 → no change 1 – 2
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
document 100% 1.9 kB 1
Total 17.1 kB 2

Page health

Metric Value Change / range Trend
Main Thread Work 91 ms ↓ -3 ms (-3.4%) 73 ms – 94 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 97 → no change 97 – 97
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 6 → no change 6 – 6
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 5 → no change 5 – 5

Main thread work

Task Time Share Duration Simulated
other 55% 50 ms
style layout 27% 24 ms
script evaluation 9% 8 ms
paint composite render 5% 5 ms
parse HTML 3% 3 ms
script parse compile 0% 0 ms
Total 91 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 3 rules, 252 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 4 nodes
    Offending elements
    1. header > div 
      <div class="container"> Listing your Notist events with 11ty / <a href="/">the events</a> / <a href="/try-it">try it yourself</a> </div>
    2. h2:nth-child(5) > small 
      <small>(sourced from https://noti.st/philhawksworth.json)</small>
    3. h2:nth-child(8) > small 
      <small>(sourced from https://noti.st/philhawksworth.json)</small>
    4. footer > div 
      <div class="container">
  • moderate landmark-one-main — Document should have one main landmark 1 node
    Offending element
    1. html 
      <html lang="en">
  • moderate region — All page content should be contained by landmarks 1 node
    Offending element
    1. body > div 
      <div class="container">

Accessibility failures 2 of 13 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 4 nodes
  • landmark-one-main — Document does not have a main landmark. 1 node

SEO failures 1 of 7 audits

  • meta-description — Document does not have a meta description

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, 5:49 PM UTC 100 804 ms 0 0 ms 17.1 kB 3/3 ±0 2,482 0% 20.6s Wayback
Sep 26, 2026, 2:10 PM UTC 100 1.05 s 0 0 ms 17.0 kB 3/3 ±0 2,477 0% 20.2s Wayback
Sep 19, 2026, 12:54 PM UTC 100 847 ms 0 0 ms 1.9 kB 3/3 ±0 2,896 +16% 20.2s Wayback
Sep 12, 2026, 11:29 AM UTC 100 777 ms 0 0 ms 1.9 kB 3/3 ±0 2,486 0% 19.8s Wayback
Sep 5, 2026, 8:05 AM UTC 100 790 ms 0 0 ms 1.9 kB 3/3 ±0 3,325 +34% 19.4s Wayback
Aug 29, 2026, 5:47 AM UTC 100 787 ms 0 0 ms 1.9 kB 3/3 ±0 2,471 -1% 20.7s Wayback
Aug 20, 2026, 9:35 PM UTC 100 779 ms 0 0 ms 1.9 kB 3/3 ±0 2,323 -7% 20.6s Wayback

Embed this score

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