speedlify2

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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kajrietberg.nl

https://www.kajrietberg.nl/

86PERF 86A11Y 100BEST 82SEO !AXE –CWV

Ranks Overall #1,103 Built Awesome #766

Data from Oct 5, 2026, 5:58 PM UTC old Measured once a week · 7 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

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Lighthouse Scores LAB Simulated

86
Performance
no change
86
Accessibility
no change
100
Best Practices
no change
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 2.59 s needs work ↓ -30 ms (-1.1%) 1.87 s – 2.64 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.167 needs work → no change 0.167 – 0.167
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 2.59 s needs work ↓ -30 ms (-1.1%) 1.87 s – 2.64 s
Speed Index 2.59 s good ↓ -30 ms (-1.1%) 2.36 s – 2.64 s
TTFB Time to First Byte 609 ms good ↓ -12 ms (-1.9%) 604 ms – 832 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.

element render delay 50 ms
resource load duration 19 ms
resource load delay 9 ms
time to first byte 7 ms

Page weight

Metric Value Change / range Trend
Page Weight 84.7 kB ↓ -30 B 84.7 kB – 87.9 kB
Requests 10 → no change 10 – 11
Third-party Weight 53.6 kB ↑ +2 B 53.6 kB – 53.9 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 62% 52.5 kB 3
image 29.2% 24.8 kB 2
document 5% 4.2 kB 1
stylesheet 3.8% 3.2 kB 3
script 0.1% 44 B 1
Total 84.7 kB 10

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Google Fonts font 53.6 kB 0 ms
Total 53.6 kB 0 ms

Page health

Metric Value Change / range Trend
Main Thread Work 233 ms ↑ +21 ms (+10%) 151 ms – 233 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 126 → no change 126 – 126
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 3 → no change 3 – 3
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 2 → no change 2 – 2

Main thread work

Task Time Share Duration Simulated
other 47% 109 ms
style layout 36% 84 ms
paint composite render 10% 23 ms
script evaluation 4% 10 ms
parse HTML 3% 7 ms
script parse compile 0% 1 ms
Total 233 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 3 rules, 294 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • critical image-alt — Images must have alternative text 1 node
    Offending element
    1. img 
      <img class="about-image u-photo" rel="me" src="assets/img/kaj.jpg">
  • serious link-name — Links must have discernible text 1 node
    Offending element
    1. a[href$="www.kajrietberg.nl"] 
      <a class="u-url" rel="me" href="https://www.kajrietberg.nl"><img class="about-image u-photo" rel="me" src="assets/img/kaj.jpg"></a>
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node
    Offending element
    1. html 
      <html lang="en" class="page NaN">

Accessibility failures 2 of 17 audits

  • image-alt — Image elements do not have `[alt]` attributes 1 node
  • link-name — Links do not have a discernible name 1 node

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

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 5, 2026, 5:58 PM UTC 86 2.59 s 0.167 0 ms 84.7 kB 3/3 ±6 2,479 0% 21.9s Wayback
Sep 28, 2026, 10:39 AM UTC 86 2.62 s 0.167 0 ms 84.8 kB 3/3 ±5 2,469 -1% 22.5s Wayback
Sep 21, 2026, 1:10 AM UTC 91 1.87 s 0.167 0 ms 87.9 kB 3/3 ±1 3,006 +21% 22.2s Wayback
Sep 14, 2026, 12:47 AM UTC 86 2.60 s 0.167 0 ms 84.8 kB 3/3 ±2 2,947 +19% 20.9s Wayback
Sep 6, 2026, 11:32 PM UTC 86 2.59 s 0.167 0 ms 84.8 kB 3/3 ±2 2,994 +20% 20.9s Wayback
Aug 30, 2026, 11:14 PM UTC 86 2.61 s 0.167 0 ms 84.8 kB 3/3 ±14 2,502 +1% 22.5s Wayback
Aug 21, 2026, 12:48 PM UTC 85 2.64 s 0.167 0 ms 84.8 kB 3/3 ±14 2,461 -1% 22.4s Wayback

Embed this score

Use this web component to show kajrietberg.nl'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.kajrietberg.nl/"></speedlify2-score>