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 ·

robinbakker.nl

https://robinbakker.nl/

Data from Aug 21, 2026, 2:46 PM UTC — 3h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 3h

This URL redirects to https://robinbakker.nl/en.

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.

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.

Netlify Hosted by Netlify

Scores

94
Performance
no change
96
Accessibility
no change
96
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 3.02 s — — 3.02 s 3.02 s
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 45 ms — — 45 ms 45 ms
FCP First Contentful Paint 978 ms — — 978 ms 978 ms
Speed Index 1.09 s — — 1.09 s 1.09 s
TTFB Time to First Byte 626 ms — — 626 ms 626 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.

element render delay 1.10 s
time to first byte 28 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 464.6 kB — — 464.6 kB 464.6 kB
Requests 13 — — 13 13
Third-party Weight 155.1 kB — — 155.1 kB 155.1 kB
Third-party CPU 49 ms — — 49 ms 49 ms
Unused JS 70.5 kB — — 70.5 kB 70.5 kB
Unused CSS 0 B — — 0 B 0 B

By resource type

image 195.5 kB · 3 req
script 156.5 kB · 2 req
media 56.4 kB · 1 req
font 21.2 kB · 1 req
document 18.0 kB · 1 req
other 17.2 kB · 3 req
third party 155.1 kB · 1 req

Third parties 1 entities

155.1 kB transferred, 49 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 155.1 kB · 49 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 623 ms — — 623 ms 623 ms
Long Tasks 3 — — 3 3
DOM Elements 324 — — 324 324
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 1 — — 1 1
A11y Failures 1 — — 1 1
A11y Failing Nodes 1 — — 1 1

Main thread work

other 203 ms
script evaluation 181 ms
style layout 135 ms
script parse compile 46 ms
paint composite render 41 ms
parse HTML 17 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 436 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.

  • minor empty-heading — Headings should not be empty 1 node

Accessibility failures 1 of 26 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

Hygiene

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

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 2 console errors

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, 2:46 PM UTC 94 3.02 s 0 45 ms 464.6 kB 3/3 ±8 2,510 23.9s

Embed this score

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