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

slay.sh

https://slay.sh/

93PERF 96A11Y 77BEST 90SEO ✗AXE –CWV

Ranks Overall #1,460 Built Awesome #983

Data from Oct 4, 2026, 7:19 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

Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

93
Performance
no change
96
Accessibility
no change
77
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 2.87 s needs work ↑ +16 ms (+0.6%) 2.86 s – 2.89 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.005 good → no change 0.005 – 0.005
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 2.29 s needs work ↑ +28 ms (+1.2%) 2.26 s – 2.31 s
Speed Index 2.29 s good ↑ +28 ms (+1.2%) 2.26 s – 2.31 s
TTFB Time to First Byte 620 ms good ↑ +16 ms (+2.6%) 604 ms – 629 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 128 ms
time to first byte 22 ms

Page weight

Metric Value Change / range Trend
Page Weight 221 kB ↑ +67 B 221 kB – 221 kB
Requests 15 → no change 15 – 15
Third-party Weight 71.8 kB ↑ +17 B 71.5 kB – 71.8 kB
Third-party CPU 28 ms ↓ -2 ms (-7.3%) 20 ms – 31 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 60.4% 134 kB 3
script 20.7% 45.8 kB 4
font 16.4% 36.4 kB 1
stylesheet 2.1% 4.8 kB 4
other 0.2% 482 B 1
image 0.1% 184 B 1
Total 221 kB 15

Third parties 3 entities

Entity Transfer Size Main thread Simulated
Adobe TypeKit font 37.6 kB 0 ms
Twitter script 30.7 kB 27 ms
Cloudflare CDN 3.5 kB 1 ms
Total 71.8 kB 28 ms

Page health

Metric Value Change / range Trend
Main Thread Work 471 ms ↓ -37 ms (-7.2%) 371 ms – 511 ms
Long Tasks 0 → no change 0 – 1
DOM Elements 149 → no change 149 – 149
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 6 → no change 6 – 6
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

Task Time Share Duration Simulated
script evaluation 36% 171 ms
other 29% 136 ms
style layout 22% 102 ms
paint composite render 7% 31 ms
script parse compile 3% 16 ms
parse HTML 3% 13 ms
garbage collection 1% 3 ms
Total 471 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 4 rules, 266 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate page-has-heading-one — Page should contain a level-one heading 2 nodes
    Offending elements
    1. html 
      <html lang="en">
    2. #twitter-widget-0 >>> html 
      <html data-scribe="page:button" lang="en" class=" en">
  • serious scrollable-region-focusable — Scrollable region must have keyboard access 2 nodes
    Offending elements
    1. .code-toolbar:nth-child(4) > pre 
      <pre class=" language-bash"><code class=" language-bash"><span class="token function">git</span> clone https://github.com/minamarkham/formation.git <span class="token operator">&amp;&amp;</span> <spa…
    2. .hot-sauce > .code-toolbar > pre 
      <pre class=" language-bash">
  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node
    Offending element
    1. .comment 
      <span class="token comment">#!/usr/bin/env bash</span>
  • moderate region — All page content should be contained by landmarks 1 node
    Offending element
    1. .github-corner 
      <a target="_blank" href="https://github.com/minamarkham/formation" class="github-corner" aria-label="View source on Github">

Accessibility failures 1 of 24 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node

Best Practices failures 2 of 19 audits

  • third-party-cookies — Uses third-party cookies 1 item
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item

SEO failures 1 of 7 audits

  • crawlable-anchors — Links are not crawlable 5 items

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, 7:19 PM UTC 93 2.87 s 0.005 0 ms 221 kB 3/3 ±4 2,475 0% 24.8s Wayback
Sep 27, 2026, 5:38 PM UTC 93 2.86 s 0.005 0 ms 221 kB 3/3 ±3 2,509 +1% 24.7s Wayback
Sep 20, 2026, 2:38 PM UTC 93 2.87 s 0.005 0 ms 221 kB 3/3 ±4 2,988 +20% 23.8s Wayback
Sep 13, 2026, 1:52 PM UTC 93 2.87 s 0.005 0 ms 221 kB 3/3 ±4 2,473 -1% 24.7s Wayback
Sep 6, 2026, 10:27 AM UTC 93 2.87 s 0.005 0 ms 221 kB 3/3 ±6 2,639 +6% 25s Wayback
Aug 30, 2026, 8:02 AM UTC 93 2.89 s 0.005 0 ms 221 kB 3/3 ±6 3,597 +45% 24.4s Wayback
Aug 21, 2026, 6:49 AM UTC 93 2.87 s 0.005 0 ms 221 kB 3/3 ±4 2,478 0% 24.9s Wayback

Embed this score

Use this web component to show slay.sh'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://slay.sh/"></speedlify2-score>