kareldesmet.be

Ranks Overall #964 Built Awesome #752

Data from Sep 17, 2026, 12:07 AM UTC 7h old Measured once a week · 8 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

Moved from https://www.kareldesmet.be/.

History from the previous URL is included below, with the move on Sep 9, 2026. A step-change around that point is likely the change of address rather than a regression.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Hosted by Netlify

Lighthouse Scores LAB Simulated

Performance

no change

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	3.31 s needs work	↑ +1 ms 3.31 s – 6.51 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—
CLS CWV (estimate) Cumulative Layout Shift	0.075 good	→ no change 0.075 – 0.182
TBT Total Blocking Time	80 ms good	↑ +5 ms (+6.7%) 64 ms – 122 ms
FCP First Contentful Paint	2.73 s needs work	↓ -8 ms (-0.3%) 2.73 s – 5.23 s
Speed Index	2.73 s good	↓ -8 ms (-0.3%) 2.73 s – 5.23 s
TTFB Time to First Byte	606 ms good	↑ +1 ms (+0.2%) 605 ms – 1.10 s

Metric

Lab Simulated

Value

Change / range

Trend

LCP CWV (estimate) Largest Contentful Paint

3.31 s needs work

↑ +1 ms 3.31 s – 6.51 s

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

n/a

—

CLS CWV (estimate) Cumulative Layout Shift

0.075 good

→ no change 0.075 – 0.182

TBT Total Blocking Time

80 ms good

↑ +5 ms (+6.7%) 64 ms – 122 ms

FCP First Contentful Paint

2.73 s needs work

↓ -8 ms (-0.3%) 2.73 s – 5.23 s

Speed Index

2.73 s good

↓ -8 ms (-0.3%) 2.73 s – 5.23 s

TTFB Time to First Byte

606 ms good

↑ +1 ms (+0.2%) 605 ms – 1.10 s

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 44 ms

resource load duration 16 ms

resource load delay 9 ms

time to first byte 6 ms

Page weight

Metric	Value	Change / range
Page Weight	613 kB	↑ +1.1 kB (+0.2%) 612 kB – 615 kB
Requests	15	→ no change 15 – 17
Third-party Weight	390 kB	↑ +1.0 kB (+0.3%) 388 kB – 391 kB
Third-party CPU	81 ms	↑ +1 ms (+1.8%) 64 ms – 97 ms
Unused JS	142 kB	↓ -342 B (-0.2%) 137 kB – 142 kB
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

613 kB

↑ +1.1 kB (+0.2%) 612 kB – 615 kB

Requests

→ no change 15 – 17

Third-party Weight

390 kB

↑ +1.0 kB (+0.3%) 388 kB – 391 kB

Third-party CPU

81 ms

↑ +1 ms (+1.8%) 64 ms – 97 ms

Unused JS

142 kB

↓ -342 B (-0.2%) 137 kB – 142 kB

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
script	51.3%	315 kB	4
image	35.3%	217 kB	1
font	12.1%	74.5 kB	3
stylesheet	0.7%	4.1 kB	4
document	0.3%	1.8 kB	1
other	0.2%	1.3 kB	2
Total		613 kB	15

Third parties 3 entities

Entity	Transfer	Size	Main thread Simulated
Google Tag Manager	script	293 kB	72 ms
Google Fonts	font	76.2 kB	0 ms
Google Analytics		20.9 kB	9 ms
Total		390 kB	81 ms

Entity

Transfer

Size

Main thread Simulated

Google Tag Manager

script

293 kB

72 ms

Google Fonts

font

76.2 kB

0 ms

Google Analytics

20.9 kB

9 ms

Total

390 kB

81 ms

Page health

Metric	Value	Change / range
Main Thread Work	580 ms	↑ +22 ms (+4%) 478 ms – 761 ms
Long Tasks	3	→ no change 2 – 5
DOM Elements	55	→ no change 55 – 55
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	2	→ no change 2 – 2
A11y Failures	1	→ no change 1 – 1
A11y Failing Nodes	1	→ no change 1 – 1

Metric

Value

Change / range

Trend

Main Thread Work

580 ms

↑ +22 ms (+4%) 478 ms – 761 ms

Long Tasks

→ no change 2 – 5

DOM Elements

→ no change 55 – 55

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

→ no change 2 – 2

A11y Failures

→ no change 1 – 1

A11y Failing Nodes

→ no change 1 – 1

Main thread work

Task	Share	Duration Simulated
script evaluation	53%	309 ms
other	17%	101 ms
style layout	13%	77 ms
script parse compile	13%	75 ms
paint composite render	2%	10 ms
parse HTML	1%	8 ms
Total		580 ms

Task

Time

Duration Simulated

script evaluation

53%

309 ms

other

17%

101 ms

style layout

13%

77 ms

script parse compile

13%

75 ms

paint composite render

10 ms

parse HTML

8 ms

Total

580 ms

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 2 rules, 121 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
moderate page-has-heading-one — Page should contain a level-one heading 1 node

Accessibility failures 1 of 13 audits

image-alt — Image elements do not have `[alt]` attributes 1 node

SEO failures 1 of 8 audits

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 Perf LCP CLS TBT Weight Runs Spread Bench Took Archive

Sep 17, 2026, 12:07 AM UTC 86 3.31 s 0.075 80 ms 613 kB 3/3 ±31 2,494 0% 26.2s Wayback

Sep 9, 2026, 10:57 PM UTC 86 3.31 s 0.075 75 ms 612 kB 3/3 ±37 2,492 0% 26.4s Wayback

Sep 9, 2026, 8:40 AM UTC old URL 77 4.22 s 0.075 82 ms 612 kB 3/3 ±15 2,408 -3% 25.6s Wayback

Sep 2, 2026, 8:26 AM UTC old URL 61 5.75 s 0.182 122 ms 615 kB 1/3 — 2,431 -2% 261.9s Wayback

Sep 1, 2026, 1:17 PM UTC old URL The "start lh:runner:gather" performance mark has not been set 190.3s

Sep 1, 2026, 1:50 AM UTC old URL lighthouse timed out after 120000ms 245s

Aug 30, 2026, 11:17 PM UTC old URL NO_FCP: The page did not paint any content. Please ensure you keep the browser window in the foreground during the load and try again. (NO_FCP) 87.1s

Aug 21, 2026, 10:46 AM UTC old URL 56 6.51 s 0.179 64 ms 612 kB 1/3 — 2,942 +19% 258s Wayback

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Sep 17, 2026, 12:07 AM UTC	86	3.31 s	0.075	80 ms	613 kB	3/3	±31	2,494 0%	26.2s	Wayback
Sep 9, 2026, 10:57 PM UTC	86	3.31 s	0.075	75 ms	612 kB	3/3	±37	2,492 0%	26.4s	Wayback
Sep 9, 2026, 8:40 AM UTC old URL	77	4.22 s	0.075	82 ms	612 kB	3/3	±15	2,408 -3%	25.6s	Wayback
Sep 2, 2026, 8:26 AM UTC old URL	61	5.75 s	0.182	122 ms	615 kB	1/3	—	2,431 -2%	261.9s	Wayback
Sep 1, 2026, 1:17 PM UTC old URL	`The "start lh:runner:gather" performance mark has not been set`	190.3s
Sep 1, 2026, 1:50 AM UTC old URL	`lighthouse timed out after 120000ms`	245s
Aug 30, 2026, 11:17 PM UTC old URL	`NO_FCP: The page did not paint any content. Please ensure you keep the browser window in the foreground during the load and try again. (NO_FCP)`	87.1s
Aug 21, 2026, 10:46 AM UTC old URL	56	6.51 s	0.179	64 ms	612 kB	1/3	—	2,942 +19%	258s	Wayback

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Use this web component to show kareldesmet.be'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!

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Stack

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB

LCP Subparts LAB 🐇 Unthrottled

Page weight

By resource type

Third parties 3 entities

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 1 of 13 audits

SEO failures 1 of 8 audits

Hygiene

Measurement log

Embed this score

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled