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

spacebook.app

https://spacebook.app/

100PERF 96A11Y 100BEST 92SEO !AXE –CWV

Ranks Overall #825 Build Awesome Starters #103

Data from Oct 4, 2026, 7:20 PM 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

Uses Alpine.jsAlpine.js
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

100
Performance
no change
96
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 1.52 s good ↓ -32 ms (-2.1%) 806 ms – 1.55 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 – 3 ms
FCP First Contentful Paint 821 ms good ↓ -17 ms (-2%) 806 ms – 838 ms
Speed Index 821 ms good ↓ -17 ms (-2%) 806 ms – 838 ms
TTFB Time to First Byte 605 ms good ↓ -18 ms (-2.9%) 605 ms – 628 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 61 ms
time to first byte 6 ms

Page weight

Metric Value Change / range Trend
Page Weight 62.6 kB ↓ -830 B (-1.3%) 62.6 kB – 63.5 kB
Requests 5 → no change 5 – 5
Third-party Weight 7.7 kB ↓ -2 B 7.6 kB – 7.7 kB
Third-party CPU 1 ms → no change 1 ms – 1 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 65.3% 40.9 kB 1
stylesheet 11.2% 7.0 kB 1
document 11.2% 7.0 kB 1
script 9% 5.6 kB 1
image 3.3% 2.0 kB 1
Total 62.6 kB 5

Third parties 2 entities

Entity Transfer Size Main thread Simulated
Cloudflare CDN script 5.6 kB 1 ms
Netlify image 2.0 kB 0 ms
Total 7.7 kB 1 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 300 ms ↓ -35 ms (-10.5%) 200 ms – 335 ms
Long Tasks 1 → no change 0 – 2
DOM Elements 208 → no change 208 – 208
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 4 → no change 4 – 4
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

Task Time Share Duration Simulated
other 45% 136 ms
style layout 38% 115 ms
script evaluation 7% 22 ms
paint composite render 5% 15 ms
parse HTML 3% 9 ms
script parse compile 1% 4 ms
Total 300 ms

Axe violations axe-core 4.13.0, full rule set

4 violating nodes across 2 rules, 376 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious scrollable-region-focusable — Scrollable region must have keyboard access 3 nodes
    Offending elements
    1. pre:nth-child(35) 
      <pre><code>git clone https://github.com/&lt;your-username&gt;/&lt;your-repository&gt; </code></pre>
    2. pre:nth-child(37) 
      <pre><code>git clone https://github.com/broeker/spacebook </code></pre>
    3. pre:nth-child(41) 
      <pre><code>cd spacebook npm install npm run build (only necessary the first time!) </code></pre>
  • serious aria-prohibited-attr — Elements must only use permitted ARIA attributes 1 node
    Offending element
    1. .switch 
      <a aria-label="dark mode" rel="noopener noreferrer" class="ml-2 mr-3 switch text-current cursor-pointer" onclick="activateDarkMode()">

Accessibility failures 1 of 22 audits

  • aria-prohibited-attr — Elements use prohibited ARIA attributes 1 node

SEO failures 1 of 9 audits

  • crawlable-anchors — Links are not crawlable 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 4, 2026, 7:20 PM UTC 100 1.52 s 0 0 ms 62.6 kB 3/3 ±1 2,492 0% 22.9s Wayback
Sep 27, 2026, 5:39 PM UTC 100 1.55 s 0 0 ms 63.5 kB 3/3 ±1 2,476 0% 23.3s Wayback
Sep 20, 2026, 2:34 PM UTC 100 1.55 s 0 0 ms 62.7 kB 3/3 ±1 3,354 +35% 21.4s Wayback
Sep 13, 2026, 1:48 PM UTC 100 1.53 s 0 3 ms 62.8 kB 3/3 ±1 2,376 -4% 22.8s Wayback
Sep 6, 2026, 10:23 AM UTC 100 1.54 s 0 0 ms 62.8 kB 3/3 ±1 2,486 0% 22.5s Wayback
Aug 30, 2026, 7:58 AM UTC 100 1.52 s 0 0 ms 62.7 kB 3/3 ±0 2,469 -1% 21.9s Wayback
Aug 21, 2026, 7:48 AM UTC 100 806 ms 0 0 ms 62.6 kB 3/3 ±1 4,293 +73% 20.8s Wayback

Embed this score

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