bruijn.me

Ranks Overall #1,587 Built Awesome #1,050

Data from Oct 3, 2026, 1:48 AM UTC 5d old Measured once a week · 7 runs since Aug 20, 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

Built with Eleventy 2.0.1

Hosted by GitHub Pages

Lighthouse Scores LAB Simulated

Performance

↓ -2 (-2.9%)

Accessibility

no change

100

Best Practices

no change

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
LCP CWV (estimate) Largest Contentful Paint	21.65 s poor	↑ +13 ms (+0.1%) 21.64 s – 21.68 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—
CLS CWV (estimate) Cumulative Layout Shift	0.149 needs work	↑ +0.028 (+23.1%) significant 0.121 – 0.149
TBT Total Blocking Time	3 ms good	↓ -25 ms (-89.3%) significant 0 ms – 28 ms
FCP First Contentful Paint	1.55 s good	↑ +19 ms (+1.2%) 1.53 s – 1.57 s
Speed Index	2.76 s good	↑ +14 ms (+0.5%) 2.68 s – 2.86 s
TTFB Time to First Byte	476 ms good	↑ +7 ms (+1.5%) 469 ms – 490 ms

Metric

Lab Simulated

Value

Change / range

Trend

LCP CWV (estimate) Largest Contentful Paint

21.65 s poor

↑ +13 ms (+0.1%) 21.64 s – 21.68 s

INP CWV Interaction to Next Paint — field only, no lab run can measure it

n/a

—

CLS CWV (estimate) Cumulative Layout Shift

0.149 needs work

↑ +0.028 (+23.1%) significant 0.121 – 0.149

TBT Total Blocking Time

3 ms good

↓ -25 ms (-89.3%) significant 0 ms – 28 ms

FCP First Contentful Paint

1.55 s good

↑ +19 ms (+1.2%) 1.53 s – 1.57 s

Speed Index

2.76 s good

↑ +14 ms (+0.5%) 2.68 s – 2.86 s

TTFB Time to First Byte

476 ms good

↑ +7 ms (+1.5%) 469 ms – 490 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 98 ms

resource load duration 33 ms

time to first byte 32 ms

resource load delay 10 ms

Page weight

Metric	Value	Change / range
Page Weight	3.89 MB	↓ -504 B 3.89 MB – 3.89 MB
Requests	16	→ no change 16 – 18
Third-party Weight	13.6 kB	↓ -1 B 13.0 kB – 14.8 kB
Third-party CPU	7 ms	↑ +1 ms (+10.6%) 4 ms – 9 ms
Unused JS	39.3 kB	→ no change 39.3 kB – 39.3 kB
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

3.89 MB

↓ -504 B 3.89 MB – 3.89 MB

Requests

→ no change 16 – 18

Third-party Weight

13.6 kB

↓ -1 B 13.0 kB – 14.8 kB

Third-party CPU

7 ms

↑ +1 ms (+10.6%) 4 ms – 9 ms

Unused JS

39.3 kB

→ no change 39.3 kB – 39.3 kB

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
image	97.2%	3.78 MB	5
script	2.1%	83.1 kB	3
font	0.4%	17.4 kB	2
stylesheet	0.1%	5.1 kB	1
document	0.1%	3.4 kB	1
other	<0.1%	1.1 kB	4
Total		3.89 MB	16

Third parties 2 entities

Entity	Transfer	Size	Main thread Simulated
Cloudflare	script	10.2 kB	5 ms
umami.is	script	3.4 kB	2 ms
Total		13.6 kB	7 ms

Entity

Transfer

Size

Main thread Simulated

Cloudflare

script

10.2 kB

5 ms

umami.is

script

3.4 kB

2 ms

Total

13.6 kB

7 ms

Page health

Metric	Value	Change / range
Main Thread Work	1.41 s	↓ -272 ms (-16.2%) 1.17 s – 1.68 s
Long Tasks	2	→ no change 0 – 2
DOM Elements	127	→ no change 127 – 127
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	13	→ no change 10 – 14
A11y Failures	4	→ no change 4 – 4
A11y Failing Nodes	10	→ no change 10 – 10

Metric

Value

Change / range

Trend

Main Thread Work

1.41 s

↓ -272 ms (-16.2%) 1.17 s – 1.68 s

Long Tasks

→ no change 0 – 2

DOM Elements

127

→ no change 127 – 127

Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)

→ no change 10 – 14

A11y Failures

→ no change 4 – 4

A11y Failing Nodes

→ no change 10 – 10

Main thread work

Task	Share	Duration Simulated
other	35%	498 ms
style layout	33%	470 ms
script evaluation	19%	274 ms
paint composite render	8%	110 ms
script parse compile	3%	36 ms
parse HTML	1%	14 ms
garbage collection	1%	7 ms
Total		1.41 s

Task

Time

Duration Simulated

other

35%

498 ms

style layout

33%

470 ms

script evaluation

19%

274 ms

paint composite render

110 ms

script parse compile

36 ms

parse HTML

14 ms

garbage collection

7 ms

Total

1.41 s

Axe violations axe-core 4.13.0, full rule set

13 violating nodes across 5 rules, 242 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

critical aria-valid-attr — ARIA attributes must conform to valid names 4 nodes

Offending elements

.card[href$="about/"][data-mouse-target="data-mouse-target"] > .inner > .card-background[aria-role="presentation"]
```
<img src="/media/about/voxel-pc-animated.webp" aria-role="presentation" class="card-background" style="">
```

section:nth-child(4) > .cards[data-mouse-tracker=""] > .card[data-mouse-target="data-mouse-target"] > .inner > .card-background[aria-role="presentation"]

<img src="/media/projects/timeline/timeline.jpg" aria-role="presentation" class="card-background" style="opacity: .8; object-position: bottom right; object-fit: contain;">

a[href$="distillery+/"] > .inner > .card-background[aria-role="presentation"]

<img src="/media/cases/distillery+/distillery+.png" aria-role="presentation" class="card-background" style="opacity: .3;">

a[href$="ruwan.nl/"] > .inner > .card-background[aria-role="presentation"]

<img src="/media/cases/ruwan.nl/ruwan.nl.png" aria-role="presentation" class="card-background" style="opacity: .6;">

critical image-alt — Images must have alternative text 4 nodes

Offending elements

.card[href$="about/"][data-mouse-target="data-mouse-target"] > .inner > .card-background[aria-role="presentation"]
```
<img src="/media/about/voxel-pc-animated.webp" aria-role="presentation" class="card-background" style="">
```

section:nth-child(4) > .cards[data-mouse-tracker=""] > .card[data-mouse-target="data-mouse-target"] > .inner > .card-background[aria-role="presentation"]

<img src="/media/projects/timeline/timeline.jpg" aria-role="presentation" class="card-background" style="opacity: .8; object-position: bottom right; object-fit: contain;">

a[href$="distillery+/"] > .inner > .card-background[aria-role="presentation"]

<img src="/media/cases/distillery+/distillery+.png" aria-role="presentation" class="card-background" style="opacity: .3;">

a[href$="ruwan.nl/"] > .inner > .card-background[aria-role="presentation"]

<img src="/media/cases/ruwan.nl/ruwan.nl.png" aria-role="presentation" class="card-background" style="opacity: .6;">

serious color-contrast — Elements must meet minimum color contrast ratio thresholds 3 nodes

Offending elements

.section:nth-child(3) > .subtitle

<p class="subtitle" style="translate: none; rotate: none; scale: none; transform: translate3d(0px, 5.7801px, 0px); opacity: 0.422;">

.section:nth-child(3) > .subtitle > strong

<strong style="translate: none; rotate: none; scale: none; transform: translate3d(0px, 6.8847px, 0px); opacity: 0.3115;">Interested in my work?</strong>

.subtitle > a[href$="projects/"]

<a href="/projects/" style="translate: none; rotate: none; scale: none; transform: translate3d(0px, 9.4986px, 0px); opacity: 0.0501;">personal projects</a>

critical button-name — Buttons must have discernible text 1 node

Offending element

#nav-toggle

<button id="nav-toggle" style="translate: none; rotate: none; scale: none; transform: translate(0px, 0px); opacity: 1;"> <div class="line"></div> </button>

serious list — <ul> and <ol> must only directly contain <li>, <script> or <template> elements 1 node
Offending element
1. ul
```
<ul>
```

Accessibility failures 4 of 20 audits

aria-valid-attr — `[aria-*]` attributes are not valid or misspelled 4 nodes
image-alt — Image elements do not have `[alt]` attributes 4 nodes
button-name — Buttons do not have an accessible name 1 node
list — Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 1 node

SEO failures 1 of 9 audits

image-alt — Image elements do not have `[alt]` attributes 4 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3

Measurement log

Every stored run for this URL, newest first.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 3, 2026, 1:48 AM UTC	68	21.65 s	0.149	3 ms	3.89 MB	3/3	±3	2,872 +16%	25.5s	Wayback
Sep 25, 2026, 11:18 AM UTC	70	21.64 s	0.121	28 ms	3.89 MB	3/3	±2	2,475 0%	25.1s	Wayback
Sep 18, 2026, 8:51 AM UTC	70	21.65 s	0.121	8 ms	3.89 MB	3/3	±4	2,654 +7%	26s	Wayback
Sep 11, 2026, 8:41 AM UTC	70	21.65 s	0.121	16 ms	3.89 MB	3/3	±0	2,576 +4%	27s	Wayback
Sep 4, 2026, 5:40 AM UTC	70	21.65 s	0.121	6 ms	3.89 MB	3/3	±3	2,819 +13%	25.5s	Wayback
Aug 28, 2026, 1:20 AM UTC	68	21.64 s	0.149	18 ms	3.89 MB	3/3	±3	2,494 0%	25.6s	Wayback
Aug 20, 2026, 4:23 PM UTC	70	21.68 s	0.121	0 ms	3.89 MB	3/3	±26	3,225 +30%	32s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

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Stack

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB

LCP Subparts LAB 🐇 Unthrottled

Page weight

By resource type

Third parties 2 entities

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 4 of 20 audits

SEO failures 1 of 9 audits

Hygiene

Measurement log

Embed this score

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled