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/

98PERF 100A11Y 100BEST 100SEO ✓AXE –CWV

Ranks Overall #280 Built Awesome #220

Data from Oct 4, 2026, 7:17 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

Eleventy 3.1.6 Built with Eleventy 3.1.6
Cloudflare Hosted by Cloudflare

Lighthouse Scores LAB Simulated

98
Performance
no change
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 2.07 s good ↓ -65 ms (-3%) 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 0.012 good → no change 0.012 – 0.021
TBT Total Blocking Time 57 ms good ↓ -6 ms (-9.5%) 36 ms – 70 ms
FCP First Contentful Paint 1.69 s good ↑ +1 ms (+0.1%) 1.68 s – 1.84 s
Speed Index 1.69 s good ↑ +1 ms (+0.1%) 1.68 s – 1.84 s
TTFB Time to First Byte 473 ms good ↓ -145 ms (-23.5%) 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 105 ms
time to first byte 10 ms

Page weight

Metric Value Change / range Trend
Page Weight 484 kB ↑ +12.3 kB (+2.7%) 440 kB – 484 kB
Requests 27 ↑ +1 (+3.8%) 26 – 27
Third-party Weight 294 kB ↑ +13.0 kB (+4.7%) 250 kB – 294 kB
Third-party CPU 67 ms ↓ -2 ms (-2.5%) 56 ms – 78 ms
Unused JS 73.0 kB ↑ +1.1 kB (+1.5%) 69.5 kB – 73.0 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 41.1% 199 kB 4
image 30.5% 148 kB 12
font 23.7% 115 kB 5
document 4.1% 19.8 kB 1
other 0.5% 2.6 kB 3
Total 484 kB 27

Third parties 5 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 174 kB 56 ms
Cloudinary image 69.7 kB 0 ms
YouTube image 28.0 kB 0 ms
SpeedCurve RUM 12.6 kB 8 ms
Cloudflare 10.2 kB 4 ms
Total 294 kB 67 ms

Page health

Metric Value Change / range Trend
Main Thread Work 724 ms ↓ -68 ms (-8.6%) 547 ms – 931 ms
Long Tasks 3 ↓ -1 (-25%) 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 35% 256 ms
style layout 28% 206 ms
other 21% 150 ms
script parse compile 7% 50 ms
parse HTML 5% 39 ms
paint composite render 3% 24 ms
Total 724 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
Oct 4, 2026, 7:17 PM UTC 98 2.07 s 0.012 57 ms 484 kB 3/3 ±0 2,432 -2% 25.6s Wayback
Sep 27, 2026, 5:36 PM UTC 98 2.14 s 0.012 63 ms 471 kB 3/3 ±0 2,517 +1% 23.7s Wayback
Sep 20, 2026, 2:35 PM UTC 99 1.86 s 0.021 36 ms 470 kB 3/3 ±2 2,942 +18% 22.5s Wayback
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 +42% 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>