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

zerozoo-a.github.io

https://zerozoo-a.github.io/

99 92 100 92 AXE CWV

Ranks Overall #1,137 Built Awesome #881

Data from Sep 14, 2026, 11:56 AM UTC old Measured once a week · 4 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · 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
GitHub Pages Hosted by GitHub Pages

Lighthouse Scores LAB Simulated

99
Performance
↑ +1 (+1%)
92
Accessibility
no change
100
Best Practices
no change
92
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 1.21 s good ↑ +3 ms (+0.2%) 1.20 s – 1.21 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a
CLS CWV (estimate) Cumulative Layout Shift 0.042 good → no change 0.042 – 0.042
TBT Total Blocking Time 87 ms good ↓ -75 ms (-46.3%) 87 ms – 162 ms
FCP First Contentful Paint 1.21 s good ↑ +3 ms (+0.2%) 1.20 s – 1.21 s
Speed Index 1.21 s good ↑ +3 ms (+0.2%) 1.20 s – 1.21 s
TTFB Time to First Byte 605 ms good ↑ +3 ms (+0.5%) 602 ms – 614 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 49 ms
time to first byte 7 ms

Page weight

Metric Value Change / range Trend
Page Weight 356 kB ↓ -168.4 kB (-32.6%) significant 356 kB – 528 kB
Requests 8 ↓ -1 (-11.1%) significant 8 – 9
Third-party Weight 298 kB ↓ -168.4 kB (-36.6%) significant 298 kB – 471 kB
Third-party CPU 83 ms ↓ -25 ms (-23%) 83 ms – 108 ms
Unused JS 147 kB ↓ -115.0 kB (-44.5%) significant 147 kB – 264 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 89.8% 320 kB 3
document 9.4% 33.6 kB 1
other 0.7% 2.5 kB 2
Total 356 kB 8

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 298 kB 83 ms
Total 298 kB 83 ms

Page health

Metric Value Change / range Trend
Main Thread Work 577 ms ↓ -163 ms (-22%) 577 ms – 740 ms
Long Tasks 3 ↓ -1 (-25%) significant 3 – 4
DOM Elements 673 → no change 673 – 673
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
script evaluation 52% 298 ms
other 17% 100 ms
script parse compile 16% 92 ms
style layout 9% 53 ms
parse HTML 5% 27 ms
paint composite render 1% 8 ms
Total 577 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 3 rules, 269 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious list — <ul> and <ol> must only directly contain <li>, <script> or <template> elements 3 nodes
  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 2 nodes
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node

Accessibility failures 2 of 24 audits

  • list — Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 3 nodes
  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 2 nodes

SEO failures 1 of 10 audits

  • canonical — Document does not have a valid `rel=canonical`

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
Sep 14, 2026, 11:56 AM UTC 99 1.21 s 0.042 87 ms 356 kB 3/3 ±0 2,476 0% 22.4s Wayback
Sep 7, 2026, 8:59 AM UTC 98 1.20 s 0.042 162 ms 528 kB 3/3 ±1 2,489 0% 22.2s Wayback
Aug 31, 2026, 3:54 AM UTC 99 1.21 s 0.042 110 ms 527 kB 3/3 ±1 2,907 +17% 22.1s Wayback
Aug 21, 2026, 12:56 PM UTC 98 1.21 s 0.042 148 ms 523 kB 3/3 ±0 2,442 -2% 23.5s Wayback

Embed this score

Use this web component to show zerozoo-a.github.io'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://zerozoo-a.github.io/"></speedlify2-score>