castmill.com

Ranks Overall #1,398 Built Awesome #948

Data from Oct 3, 2026, 1:53 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

Hosted by GitHub Pages

Lighthouse Scores LAB Simulated

Performance

no change

Accessibility

no change

Best Practices

no change

100

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	4.51 s poor	↑ +7 ms (+0.2%) 4.21 s – 4.51 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—
CLS CWV (estimate) Cumulative Layout Shift	0 good	→ no change 0 – 0
TBT Total Blocking Time	0 ms good	→ no change 0 ms – 0 ms
FCP First Contentful Paint	2.35 s needs work	↓ -24 ms (-1%) 2.30 s – 2.39 s
Speed Index	2.35 s good	↓ -24 ms (-1%) 2.30 s – 2.39 s
TTFB Time to First Byte	610 ms good	↑ +7 ms (+1.2%) 602 ms – 610 ms

Metric

Lab Simulated

Value

Change / range

Trend

LCP CWV (estimate) Largest Contentful Paint

4.51 s poor

↑ +7 ms (+0.2%) 4.21 s – 4.51 s

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

n/a

—

CLS CWV (estimate) Cumulative Layout Shift

0 good

→ no change 0 – 0

TBT Total Blocking Time

0 ms good

→ no change 0 ms – 0 ms

FCP First Contentful Paint

2.35 s needs work

↓ -24 ms (-1%) 2.30 s – 2.39 s

Speed Index

2.35 s good

↓ -24 ms (-1%) 2.30 s – 2.39 s

TTFB Time to First Byte

610 ms good

↑ +7 ms (+1.2%) 602 ms – 610 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.

resource load delay 92 ms

element render delay 48 ms

resource load duration 13 ms

time to first byte 10 ms

Page weight

Metric	Value	Change / range
Page Weight	1.36 MB	↓ -93 B 1.36 MB – 1.36 MB
Requests	26	→ no change 26 – 26
Third-party Weight	251 kB	↑ +25 B 251 kB – 251 kB
Third-party CPU	35 ms	↓ -5 ms (-13.1%) significant 33 ms – 40 ms
Unused JS	101 kB	→ no change 101 kB – 101 kB
Unused CSS	38.8 kB	↓ -9 B 38.8 kB – 38.8 kB

Metric

Value

Change / range

Trend

Page Weight

1.36 MB

↓ -93 B 1.36 MB – 1.36 MB

Requests

→ no change 26 – 26

Third-party Weight

251 kB

↑ +25 B 251 kB – 251 kB

Third-party CPU

35 ms

↓ -5 ms (-13.1%) significant 33 ms – 40 ms

Unused JS

101 kB

→ no change 101 kB – 101 kB

Unused CSS

38.8 kB

↓ -9 B 38.8 kB – 38.8 kB

By resource type

Type	Share	Size	Requests
image	81.3%	1.11 MB	12
script	13.5%	184 kB	6
stylesheet	3.8%	51.1 kB	2
other	0.8%	10.9 kB	5
document	0.7%	9.7 kB	1
Total		1.36 MB	26

Third parties 4 entities

Entity	Transfer	Size	Main thread Simulated
Amazon Web Services	script	144 kB	13 ms
chaport.com	stylesheetscript	87.0 kB	19 ms
tyloprint.se		17.8 kB	0 ms
Plausible		2.4 kB	3 ms
Total		251 kB	35 ms

Entity

Transfer

Size

Main thread Simulated

Amazon Web Services

script

144 kB

13 ms

chaport.com

stylesheetscript

87.0 kB

19 ms

tyloprint.se

17.8 kB

0 ms

Plausible

2.4 kB

3 ms

Total

251 kB

35 ms

Page health

Metric	Value	Change / range
Main Thread Work	523 ms	↓ -59 ms (-10.1%) significant 512 ms – 581 ms
Long Tasks	0	→ no change 0 – 0
DOM Elements	283	→ no change 282 – 283
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	6	→ no change 6 – 6
A11y Failures	1	→ no change 1 – 1
A11y Failing Nodes	5	→ no change 5 – 5

Metric

Value

Change / range

Trend

Main Thread Work

523 ms

↓ -59 ms (-10.1%) significant 512 ms – 581 ms

Long Tasks

→ no change 0 – 0

DOM Elements

283

→ no change 282 – 283

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

→ no change 6 – 6

A11y Failures

→ no change 1 – 1

A11y Failing Nodes

→ no change 5 – 5

Main thread work

Task	Share	Duration Simulated
other	38%	200 ms
script evaluation	24%	125 ms
style layout	22%	112 ms
parse HTML	6%	31 ms
script parse compile	5%	28 ms
paint composite render	5%	26 ms
Total		523 ms

Task

Time

Duration Simulated

other

38%

200 ms

script evaluation

24%

125 ms

style layout

22%

112 ms

parse HTML

31 ms

script parse compile

28 ms

paint composite render

26 ms

Total

523 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 2 rules, 462 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

serious color-contrast — Elements must meet minimum color contrast ratio thresholds 5 nodes

Offending elements

.py-6 > .ml-10.space-x-4 > .inline-block.hover\:bg-opacity-75[href$="app.castmill.com"]

<a href="https://app.castmill.com" class="inline-block bg-blue-500 py-2 px-4 border border-transparent rounded-md text-base font-medium text-white hover:bg-opacity-75">Sign in</a>

.py-3

<a href="https://app.castmill.com" class="py-3 px-4 inline-block bg-blue-500 py-2 px-4 border border-transparent rounded-md text-base font-medium text-white hover:bg-opacity-75">Start free trial</a>

.text-blue-100

<p class="text-base font-medium text-blue-100">CEO at Tylöprint</p>

.ml-10.space-x-4.mt-4 > .inline-block.hover\:bg-opacity-75[href$="app.castmill.com"]

<a href="https://app.castmill.com" class="inline-block bg-blue-500 py-2 px-4 border border-transparent rounded-md text-base font-medium text-white hover:bg-opacity-75">Start Free Trial</a>

button

<button type="submit" class="w-full bg-blue-500 border border-transparent rounded-md py-2 px-4 flex items-center justify-center text-base font-medium text-white hover:bg-blue-600 focus:outline-none f…

moderate region — All page content should be contained by landmarks 1 node

Offending element

.h-16

<div class="dark:bg-slate-900 bg-white h-16 mb-32 sm:mb-30 mt-4 pt-8 flex flex-col justify-center items-center text-center" aria-labelledby="cta">

Accessibility failures 1 of 28 audits

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 5 nodes

Best Practices failures 2 of 19 audits

image-size-responsive — Serves images with low resolution 1 item
errors-in-console — Browser errors were logged to the console 1 item

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 1 console error

Measurement log

Every stored run for this URL, newest first.

When	Perf	LCP	Weight	Runs	Spread	Bench	Took	Archive
Oct 3, 2026, 1:53 AM UTC	81	4.51 s	1.36 MB	3/3	±1	2,454 -1%	26.5s	Wayback
Sep 25, 2026, 11:58 PM UTC	81	4.50 s	1.36 MB	3/3	±16	2,466 -1%	27.8s	Wayback
Sep 18, 2026, 8:35 PM UTC	81	4.50 s	1.36 MB	3/3	±5	2,468 -1%	26.6s	Wayback
Sep 11, 2026, 5:40 PM UTC	82	4.51 s	1.36 MB	3/3	±2	2,325 -6%	28.2s	Wayback
Sep 4, 2026, 2:57 PM UTC	83	4.21 s	1.36 MB	3/3	±33	2,476 0%	28.3s	Wayback
Aug 28, 2026, 1:56 PM UTC	81	4.50 s	1.36 MB	3/3	±6	2,300 -7%	26.3s	Wayback
Aug 20, 2026, 7:36 PM UTC	82	4.35 s	1.36 MB	3/3	±19	2,399 -3%	27.6s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Embed this score

Use this web component to show castmill.com'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://castmill.com/"></speedlify2-score>

Stack

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB

LCP Subparts LAB 🐇 Unthrottled

Page weight

By resource type

Third parties 4 entities

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 1 of 28 audits

Best Practices failures 2 of 19 audits

Hygiene

Measurement log

Embed this score

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled