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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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btjanaka.net

https://btjanaka.net/

75PERF 100A11Y 100BEST 92SEO ✓AXE –CWV

Ranks Overall #521 Built Awesome #398

Data from Oct 3, 2026, 1:47 AM UTC old Measured once a week · 7 runs since Aug 20, 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 PreactPreactFont AwesomeFont Awesome
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

75
Performance
↓ -16 (-17.6%)
100
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 4.64 s poor ↑ +1885 ms (+68.4%) significant 1.71 s – 4.67 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 230 ms needs work ↑ +136 ms (+144.7%) significant 92 ms – 260 ms
FCP First Contentful Paint 2.72 s needs work ↓ -30 ms (-1.1%) 1.71 s – 2.75 s
Speed Index 2.72 s good ↓ -30 ms (-1.1%) 1.71 s – 2.75 s
TTFB Time to First Byte 609 ms good ↓ -32 ms (-5%) 605 ms – 813 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 99 ms
time to first byte 9 ms

Page weight

Metric Value Change / range Trend
Page Weight 3.16 MB ↓ -257 B 3.16 MB – 3.16 MB
Requests 20 → no change 20 – 20
Third-party Weight 227 kB ↑ +37 B 227 kB – 229 kB
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 40.5 kB ↓ -100 B (-0.2%) 40.5 kB – 40.7 kB
Unused CSS 24.2 kB ↑ +76 B (+0.3%) 24.1 kB – 24.2 kB

By resource type

Type Transfer Share Size Requests
image 86.8% 2.74 MB 6
font 6.7% 211 kB 4
script 5.3% 166 kB 2
stylesheet 0.9% 28.9 kB 4
document 0.2% 6.7 kB 1
media 0.2% 5.4 kB 1
other <0.1% 1.0 kB 1
Total 3.16 MB 20

Third parties 3 entities

Entity Transfer Size Main thread Simulated
FontAwesome CDN font 187 kB 0 ms
JSDelivr CDN font 39.1 kB 0 ms
Google Fonts 469 B 0 ms
Total 227 kB 0 ms

Page health

Metric Value Change / range Trend
Main Thread Work 630 ms ↓ -43 ms (-6.4%) 606 ms – 886 ms
Long Tasks 2 → no change 1 – 3
DOM Elements 353 → no change 353 – 353
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
script evaluation 29% 182 ms
other 27% 171 ms
script parse compile 20% 123 ms
style layout 17% 108 ms
parse HTML 4% 25 ms
paint composite render 3% 21 ms
Total 630 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 609 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Best Practices failures 1 of 20 audits

  • valid-source-maps — Missing source maps for large first-party JavaScript 1 item

SEO failures 1 of 10 audits

  • link-text — Links do not have descriptive text 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 3, 2026, 1:47 AM UTC 75 4.64 s 0 230 ms 3.16 MB 3/3 ±2 2,293 -8% 24.5s Wayback
Sep 25, 2026, 11:21 AM UTC 91 2.75 s 0 94 ms 3.16 MB 3/3 ±25 2,346 -6% 25.6s Wayback
Sep 18, 2026, 8:54 AM UTC 95 2.61 s 0 92 ms 3.16 MB 3/3 ±13 2,498 0% 25.1s Wayback
Sep 11, 2026, 8:43 AM UTC 98 1.71 s 0 96 ms 3.16 MB 3/3 ±25 2,652 +7% 25.4s Wayback
Sep 4, 2026, 5:40 AM UTC 98 1.72 s 0 96 ms 3.16 MB 3/3 ±23 2,418 -3% 25.7s Wayback
Aug 28, 2026, 1:23 AM UTC 75 4.64 s 0 232 ms 3.16 MB 3/3 ±21 2,273 -9% 23s Wayback
Aug 20, 2026, 7:12 PM UTC 74 4.67 s 0 260 ms 3.16 MB 3/3 ±13 2,489 0% 41.3s Wayback

Embed this score

Use this web component to show btjanaka.net'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! 

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