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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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tkackielodzkie.pl

https://www.tkackielodzkie.pl/

82PERF 89A11Y 92BEST 82SEO !AXE –CWV

Ranks Overall #1,107 Built Awesome #770

Data from Oct 6, 2026, 6:53 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

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

Stack

Eleventy Built with Eleventy
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

82
Performance
↓ -6 (-6.8%)
89
Accessibility
no change
92
Best Practices
↓ -4 (-4.2%)
82
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 2.30 s good ↓ -1078 ms (-31.9%) 1.85 s – 3.38 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.327 poor ↑ +0.327 0 – 0.327
TBT Total Blocking Time 70 ms good ↑ +70 ms 0 ms – 70 ms
FCP First Contentful Paint 977 ms good ↓ -1578 ms (-61.8%) 806 ms – 2.56 s
Speed Index 1.61 s good ↓ -946 ms (-37%) 806 ms – 2.56 s
TTFB Time to First Byte 793 ms good ↑ +188 ms (+31.1%) significant 605 ms – 793 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.

time to first byte 511 ms
resource load duration 321 ms
resource load delay 40 ms
element render delay 19 ms

Page weight

Metric Value Change / range Trend
Page Weight 435 kB ↑ +2.0 kB (+0.5%) 433 kB – 435 kB
Requests 12 ↑ +1 (+9.1%) significant 11 – 12
Third-party Weight 55.5 kB ↑ +224 B (+0.4%) 55.2 kB – 55.5 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 82.2% 356 kB 3
image 15.5% 67.2 kB 3
stylesheet 1.5% 6.4 kB 1
script 0.4% 1.8 kB 1
document 0.4% 1.6 kB 1
Total 435 kB 12

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Cloudinary image 55.5 kB 0 ms
Total 55.5 kB 0 ms

Page health

Metric Value Change / range Trend
Main Thread Work 316 ms ↑ +126 ms (+66.2%) significant 140 ms – 316 ms
Long Tasks 1 ↑ +1 0 – 1
DOM Elements 75 → no change 75 – 75
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 5 → no change 5 – 5
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 5 → no change 5 – 5

Main thread work

Task Time Share Duration Simulated
other 70% 223 ms
style layout 21% 65 ms
script evaluation 4% 12 ms
paint composite render 3% 11 ms
parse HTML 2% 5 ms
script parse compile 0% 1 ms
Total 316 ms

Axe violations axe-core 4.13.0, full rule set

5 violating nodes across 2 rules, 76 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 4 nodes
    Offending elements
    1. p:nth-child(1) 
      <p>©2022 <a href="http://regiocentrum.pl">Regio Centrum</a></p>
    2. p:nth-child(1) > a[href$="regiocentrum.pl"] 
      <a href="http://regiocentrum.pl">Regio Centrum</a>
    3. p:nth-child(2) 
      <p>Projekt został dofinansowany ze&nbsp;środków<br><a href="https://www.gov.pl/web/kultura/">Ministerstwa Kultury i&nbsp;Dziedzictwa Narodowego</a></p>
    4. p:nth-child(2) > a 
      <a href="https://www.gov.pl/web/kultura/">Ministerstwa Kultury i&nbsp;Dziedzictwa Narodowego</a>
  • critical image-alt — Images must have alternative text 1 node
    Offending element
    1. .mx-auto 
      <img src="https://res.cloudinary.com/fusilli/image/upload/v1565521372/tkackie/len.png" class="mx-auto mt-12 lg_mt-0">

Accessibility failures 2 of 20 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 4 nodes
  • image-alt — Image elements do not have `[alt]` attributes 1 node

Best Practices failures 2 of 19 audits

  • image-size-responsive — Serves images with low resolution 1 item
  • errors-in-console — Browser errors were logged to the console 1 item

SEO failures 2 of 8 audits

  • meta-description — Document does not have a meta description
  • image-alt — Image elements do not have `[alt]` attributes 1 item

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 1 console error

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 6:53 PM UTC 82 2.30 s 0.327 70 ms 435 kB 3/3 ±8 2,491 0% 20.9s Wayback
Sep 29, 2026, 5:48 PM UTC 88 3.38 s 0 0 ms 433 kB 3/3 ±5 2,483 0% 20.8s Wayback
Sep 22, 2026, 2:27 PM UTC 100 1.85 s 0 0 ms 433 kB 3/3 ±18 3,574 +44% 20.5s Wayback
Sep 15, 2026, 11:16 AM UTC 83 1.86 s 0.327 0 ms 433 kB 3/3 ±18 2,318 -7% 22.1s Wayback
Sep 8, 2026, 10:43 AM UTC 88 3.38 s 0 0 ms 433 kB 3/3 ±14 2,484 0% 21.3s Wayback
Sep 1, 2026, 7:23 AM UTC 88 3.38 s 0 0 ms 433 kB 3/3 ±2 2,326 -6% 20.8s Wayback
Aug 30, 2026, 11:24 PM UTC TRACING_ALREADY_STARTED: An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse. 19.5s
Aug 21, 2026, 12:47 PM UTC 83 1.87 s 0.327 0 ms 433 kB 3/3 ±18 2,349 -6% 22.1s Wayback

Embed this score

Use this web component to show tkackielodzkie.pl'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.tkackielodzkie.pl/"></speedlify2-score>