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 ·

kareldesmet.be

https://www.kareldesmet.be/

Data from Aug 21, 2026, 10:46 AM UTC — 7h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 7h

This URL redirects to https://kareldesmet.be/.

Lighthouse follows the redirect, so the numbers below describe the destination page, not this one. Not yet confirmed as a move; it needs to lead to the same place on several consecutive runs first.

Scores

56
Performance
no change
89
Accessibility
no change
100
Best Practices
no change
91
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 6.51 s — — 6.51 s 6.51 s
CLS Cumulative Layout Shift 0.179 — — 0.179 0.179
TBT Total Blocking Time 64 ms — — 64 ms 64 ms
FCP First Contentful Paint 5.23 s — — 5.23 s 5.23 s
Speed Index 5.23 s — — 5.23 s 5.23 s
TTFB Time to First Byte 1.10 s — — 1.10 s 1.10 s

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.

time to first byte 1.10 s
resource load duration 344 ms
element render delay 14 ms
resource load delay 9 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 611.7 kB — — 611.7 kB 611.7 kB
Requests 17 — — 17 17
Third-party Weight 388.1 kB — — 388.1 kB 388.1 kB
Third-party CPU 64 ms — — 64 ms 64 ms
Unused JS 136.8 kB — — 136.8 kB 136.8 kB
Unused CSS 0 B — — 0 B 0 B

By resource type

script 312.0 kB · 4 req
image 216.8 kB · 1 req
font 74.5 kB · 3 req
stylesheet 4.5 kB · 4 req
other 2.0 kB · 4 req
document 1.9 kB · 1 req
third party 388.1 kB · 9 req

Third parties 3 entities

388.1 kB transferred, 64 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 289.8 kB · 56 ms CPU
Google Fonts 76.5 kB · 0 ms CPU
Google Analytics 21.8 kB · 9 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 478 ms — — 478 ms 478 ms
Long Tasks 2 — — 2 2
DOM Elements 55 — — 55 55
A11y Failures 1 — — 1 1
A11y Failing Nodes 1 — — 1 1

Main thread work

script evaluation 249 ms
other 102 ms
script parse compile 60 ms
style layout 55 ms
parse HTML 6 ms
paint composite render 6 ms

Axe violations axe-core , full rule set

The axe run failed: Navigation timeout of 120000 ms exceeded

Accessibility failures 1 of 13 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.

  • image-alt — Image elements do not have `[alt]` attributes 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, 10:46 AM UTC 56 6.51 s 0.179 64 ms 611.7 kB 1/3 — 2,942 258s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show kareldesmet.be'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.kareldesmet.be/"></speedlify-score>