speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

ondrejkonecny.com

https://www.ondrejkonecny.com/

83 100 100 100 !AXE –CWV

Ranks Overall #850 Built Awesome #668

Data from Sep 8, 2026, 12:56 AM UTC old Measured once a week · 4 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Wayback Machine

Stack

Netlify Hosted by Netlify

Lighthouse Scores

83
Performance
↓ -16 (-16.2%)
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 3.50 s 1.56 s ↑ +1946 ms (+125.1%) significant 1.56 s 3.50 s
CLS Cumulative Layout Shift 0.012 0 ↑ +0.012 0 0.012
TBT Total Blocking Time 0 ms 0 ms → no change 0 ms 0 ms
FCP First Contentful Paint 3.50 s 1.56 s ↑ +1946 ms (+125.1%) significant 1.56 s 3.50 s
Speed Index 3.50 s 1.56 s ↑ +1946 ms (+125.1%) significant 1.56 s 3.50 s
TTFB Time to First Byte 604 ms 620 ms ↓ -16 ms (-2.6%) 604 ms 620 ms

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.

element render delay 78 ms
time to first byte 6 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 229 kB 22.6 kB ↑ +202.0 kB (+915.5%) significant 22.6 kB 229 kB
Requests 8 6 ↑ +2 (+33.3%) 6 8
Third-party Weight 208 kB 1.0 kB ↑ +202.0 kB (+20495.9%) significant 1.0 kB 208 kB
Third-party CPU 0 ms 0 ms → no change 0 ms 0 ms
Unused JS 0 B 0 B → no change 0 B 0 B
Unused CSS 0 B 0 B → no change 0 B 0 B

By resource type

  • font 94.3% 207 kB · 2 req
  • script 2.5% 5.4 kB · 1 req
  • stylesheet 1.7% 3.8 kB · 2 req
  • document 1.3% 2.8 kB · 1 req
  • other 0.2% 543 B · 1 req

Third parties 1 entities

208 kB transferred, 0 ms on the main thread.

Google Fonts font 208 kB · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 160 ms 113 ms ↑ +47 ms (+41.6%) significant 113 ms 160 ms
Long Tasks 0 0 → no change 0 0
DOM Elements 40 40 → no change 40 40
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 1 → no change 1 1
A11y Failures 0 0 → no change 0 0
A11y Failing Nodes 0 0 → no change 0 0

Main thread work

other 91 ms
style layout 35 ms
script evaluation 17 ms
parse HTML 8 ms
paint composite render 7 ms
script parse compile 2 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

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
Sep 8, 2026, 12:56 AM UTC 83 3.50 s 0.012 0 ms 229 kB 3/3 ±2 2,474 0% 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

Embed this score

Use this web component to show ondrejkonecny.com'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://www.ondrejkonecny.com/"></speedlify2-score>