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

ondrejkonecny.com

https://www.ondrejkonecny.com/

90PERF 100A11Y 100BEST 100SEO !AXE –CWV

Ranks Overall #793 11ty Emeritus

Data from Oct 6, 2026, 12:50 PM UTC old Measured once a week · 8 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 4,000, 61% faster than this project's median of 2,486. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Astro Built with Astro
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

90
Performance
↑ +14 (+18.4%)
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 1.55 s good ↓ -1779 ms (-53.4%) 1.55 s – 3.50 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.193 needs work → no change 0 – 0.193
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 1.55 s good ↓ -1779 ms (-53.4%) 1.55 s – 3.50 s
Speed Index 1.55 s good ↓ -1779 ms (-53.4%) 1.55 s – 3.50 s
TTFB Time to First Byte 630 ms good ↑ +27 ms (+4.5%) 603 ms – 630 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 53 ms
time to first byte 29 ms

Page weight

Metric Value Change / range Trend
Page Weight 229 kB ↑ +46 B 22.6 kB – 229 kB
Requests 8 → no change 6 – 8
Third-party Weight 208 kB → no change 1.0 kB – 208 kB
Third-party CPU 0 ms → no change 0 ms – 0 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
font 94.3% 207 kB 2
script 2.5% 5.4 kB 1
stylesheet 1.8% 3.9 kB 2
document 1.3% 2.8 kB 1
other 0.2% 543 B 1
Total 229 kB 8

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Google Fonts font 208 kB 0 ms
Total 208 kB 0 ms

Page health

Metric Value Change / range Trend
Main Thread Work 127 ms ↓ -26 ms (-16.8%) 113 ms – 178 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 40 → no change 40 – 40
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 → no change 1 – 1
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 51% 65 ms
style layout 27% 34 ms
script evaluation 11% 14 ms
parse HTML 6% 8 ms
paint composite render 4% 6 ms
script parse compile 1% 1 ms
Total 127 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 106 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate region — All page content should be contained by landmarks 1 node
    Offending element
    1. #back-to-top 
      <a data-astro-transition-persist="astro-wugk46rw-2" href="#" id="back-to-top" class="back-to-top" aria-label="back-up" data-astro-cid-z4jru4n3="">

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 6, 2026, 12:50 PM UTC 90 1.55 s 0.193 0 ms 229 kB 3/3 ±10 4,000 +61% 20.3s Wayback
Sep 29, 2026, 11:09 AM UTC 76 3.33 s 0.193 0 ms 229 kB 3/3 ±9 2,500 +1% 21.2s Wayback
Sep 22, 2026, 9:03 AM UTC 90 1.56 s 0.193 0 ms 229 kB 3/3 ±0 2,968 +19% 20.2s Wayback
Sep 15, 2026, 5:53 AM UTC 90 1.56 s 0.193 0 ms 229 kB 3/3 ±7 2,483 0% 21.6s Wayback
Sep 8, 2026, 12:56 AM UTC 83 3.50 s 0.012 0 ms 229 kB 3/3 ±2 2,474 -1% 21.4s Wayback
Aug 31, 2026, 10:32 PM UTC 99 1.56 s 0 0 ms 22.6 kB 3/3 ±1 3,227 +30% 20.7s Wayback
Aug 30, 2026, 11:29 PM UTC TRACING_ALREADY_STARTED: An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse. 18.9s
Aug 21, 2026, 7:26 PM UTC 99 1.70 s 0 0 ms 23.1 kB 3/3 ±1 2,491 0% 21.5s Wayback