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.

Charts Compare Measurement runs Embed a score Open to Work

zyllastart.vercel.app

https://zyllastart.vercel.app/

99PERF 100A11Y 96BEST 100SEO !AXE –CWV

Ranks Overall #701 Built Awesome #523

Data from Oct 6, 2026, 5:09 AM UTC old Measured once a week · 7 runs since Aug 21, 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 3.0.0 Built with Eleventy 3.0.0
Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

99
Performance
↓ -1 (-1%)
100
Accessibility
no change
96
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 1.81 s good ↑ +453 ms (+33.4%) 1.13 s – 2.11 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.001 good → no change 0.001 – 0.001
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 1.36 s good ↑ +3 ms (+0.2%) 1.13 s – 1.36 s
Speed Index 1.36 s good ↑ +3 ms (+0.2%) 1.13 s – 2.42 s
TTFB Time to First Byte 610 ms good ↑ +3 ms (+0.5%) 607 ms – 626 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 83 ms
time to first byte 4 ms

Page weight

Metric Value Change / range Trend
Page Weight 270 kB ↑ +22 B 270 kB – 271 kB
Requests 13 ↑ +1 (+8.3%) 12 – 13
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
other 46.2% 124 kB 3
document 24.3% 65.2 kB 1
font 22.5% 60.4 kB 1
image 4.3% 11.6 kB 6
stylesheet 2.8% 7.5 kB 1
Total 270 kB 13

Page health

Metric Value Change / range Trend
Main Thread Work 302 ms ↓ -7 ms (-2.3%) 281 ms – 450 ms
Long Tasks 0 → no change 0 – 1
DOM Elements 134 → no change 134 – 134
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 2 → no change 1 – 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 49% 146 ms
style layout 37% 113 ms
parse HTML 5% 16 ms
paint composite render 5% 14 ms
script evaluation 4% 12 ms
script parse compile 0% 0 ms
Total 302 ms

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 1 rule, 241 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate region — All page content should be contained by landmarks 2 nodes
    Offending elements
    1. time[datetime="2025-05-01T15:26:07.000Z"] 
      <time datetime="2025-05-01T15:26:07.000Z"> 1 mai 2025 </time>
    2. a[href$="ko-fi.com/"] 
      <a class="p-sm" href="https://ko-fi.com/" target="_blank" aria-label="Buy me a coffe">

Best Practices failures 1 of 17 audits

  • errors-in-console — Browser errors were logged to the console 2 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 2 console errors

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 5:09 AM UTC 99 1.81 s 0.001 0 ms 270 kB 3/3 ±1 2,458 -1% 22.2s Wayback
Sep 28, 2026, 11:50 PM UTC 100 1.36 s 0.001 0 ms 270 kB 3/3 ±3 2,482 0% 23s Wayback
Sep 21, 2026, 7:58 PM UTC 99 1.81 s 0.001 0 ms 270 kB 3/3 ±1 2,593 +4% 20.6s Wayback
Sep 14, 2026, 5:51 PM UTC 100 1.52 s 0.001 0 ms 270 kB 3/3 ±0 2,511 +1% 22.2s Wayback
Sep 7, 2026, 3:00 PM UTC 100 1.13 s 0.001 0 ms 271 kB 3/3 ±1 2,479 0% 21.6s Wayback
Aug 31, 2026, 10:39 AM UTC 100 1.53 s 0.001 0 ms 270 kB 3/3 ±0 2,347 -6% 22s Wayback
Aug 21, 2026, 4:35 PM UTC 99 2.11 s 0.001 0 ms 271 kB 3/3 ±1 2,430 -2% 23.3s Wayback

Embed this score

Use this web component to show zyllastart.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://zyllastart.vercel.app/"></speedlify2-score>