speedlify2

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

Measurement runs · Embed a score · Field data from the Chrome UX Report ·

piatkowska.org.pl

https://www.piatkowska.org.pl/

95 95 100 100 –CWV 1AXE

Data from Aug 21, 2026, 1:48 PM UTC — 5h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 5h

Stack

Detected on the same page load as the accessibility pass — the generator from <meta name="generator"> or the shape of the page, the host from response headers.

Eleventy Built with Eleventy
Netlify Hosted by Netlify

Scores

95
Performance
no change
95
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 1.54 s — — 1.54 s 1.54 s
CLS Cumulative Layout Shift 0.141 — — 0.141 0.141
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 817 ms — — 817 ms 817 ms
Speed Index 817 ms — — 817 ms 817 ms
TTFB Time to First Byte 641 ms — — 641 ms 641 ms

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

resource load duration 74 ms
element render delay 36 ms
time to first byte 35 ms
resource load delay 9 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 933.4 kB — — 933.4 kB 933.4 kB
Requests 13 — — 13 13
Third-party Weight 0 B — — 0 B 0 B
Third-party CPU 0 ms — — 0 ms 0 ms
Unused JS 0 B — — 0 B 0 B
Unused CSS 0 B — — 0 B 0 B

By resource type

image 880.2 kB · 10 req
font 43.8 kB · 1 req
document 8.4 kB · 1 req
other 949 B · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 173 ms — — 173 ms 173 ms
Long Tasks 0 — — 0 0
DOM Elements 66 — — 66 66
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 1 — — 1 1
A11y Failures 2 — — 2 2
A11y Failing Nodes 2 — — 2 2

Main thread work

other 102 ms
style layout 39 ms
paint composite render 13 ms
script evaluation 10 ms
parse HTML 8 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 153 passing. This is a standalone axe run, stricter than the subset Lighthouse folds into its score above — and it is the second tiebreaker in the ranking.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node

Accessibility failures 2 of 21 audits

Tracked as a count, not just the score — the weighted score is coarse enough that you can ship a broken component and barely move it.

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node
  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 1 node

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 21, 2026, 1:48 PM UTC 95 1.54 s 0.141 0 ms 933.4 kB 3/3 ±2 2,511 24.6s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show piatkowska.org.pl's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site! 

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://www.piatkowska.org.pl/"></speedlify-score>