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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sia.codes

https://sia.codes/

97 100 100 100 AXE CWV

Ranks Overall #296 Built Awesome #238

Data from Sep 13, 2026, 1:49 PM 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 3.1.6 Built with Eleventy 3.1.6
Cloudflare Hosted by Cloudflare

Lighthouse Scores LAB Simulated

97
Performance
↓ -1 (-1%)
100
Accessibility
no change
100
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 2.36 s good ↑ +522 ms (+28.4%) significant 1.84 s – 2.36 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a
CLS CWV (estimate) Cumulative Layout Shift 0.021 good ↑ +0.009 (+75%) significant 0.012 – 0.021
TBT Total Blocking Time 57 ms good ↓ -5 ms (-8.1%) 39 ms – 70 ms
FCP First Contentful Paint 1.68 s good ↓ -158 ms (-8.6%) significant 1.68 s – 1.84 s
Speed Index 1.68 s good ↓ -158 ms (-8.6%) significant 1.68 s – 1.84 s
TTFB Time to First Byte 468 ms good ↓ -23 ms (-4.7%) 467 ms – 670 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 91 ms
time to first byte 9 ms

Page weight

Metric Value Change / range Trend
Page Weight 469 kB ↑ +28.4 kB (+6.6%) 440 kB – 479 kB
Requests 26 → no change 26 – 27
Third-party Weight 279 kB ↑ +28.4 kB (+11.6%) 250 kB – 290 kB
Third-party CPU 66 ms ↓ -13 ms (-16.2%) 57 ms – 78 ms
Unused JS 71.3 kB ↑ +753 B (+1.1%) 69.5 kB – 71.3 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 41.7% 196 kB 4
image 29% 136 kB 11
font 24.5% 115 kB 5
document 4.2% 19.8 kB 1
other 0.6% 2.6 kB 3
Total 469 kB 26

Third parties 5 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 171 kB 55 ms
Cloudinary image 58.0 kB 0 ms
YouTube image 28.0 kB 0 ms
SpeedCurve RUM 12.6 kB 7 ms
Cloudflare 10.2 kB 3 ms
Total 279 kB 66 ms

Page health

Metric Value Change / range Trend
Main Thread Work 794 ms ↓ -137 ms (-14.7%) 547 ms – 931 ms
Long Tasks 4 → no change 2 – 4
DOM Elements 320 → no change 320 – 320
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
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 34% 268 ms
style layout 29% 229 ms
other 22% 171 ms
script parse compile 6% 47 ms
paint composite render 5% 44 ms
parse HTML 5% 37 ms
Total 794 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 521 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 1 of 28 audits

  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 13, 2026, 1:49 PM UTC 97 2.36 s 0.021 57 ms 469 kB 3/3 ±4 2,487 0% 24s Wayback
Sep 6, 2026, 10:24 AM UTC 98 1.84 s 0.012 62 ms 440 kB 3/3 ±1 2,606 +5% 24s Wayback
Aug 30, 2026, 7:58 AM UTC 98 2.03 s 0.012 39 ms 479 kB 3/3 ±0 3,541 +43% 23.5s Wayback
Aug 21, 2026, 6:46 AM UTC 98 2.06 s 0.012 70 ms 468 kB 3/3 ±0 2,416 -3% 23.5s Wayback

Embed this score

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