rknight.me

Ranks Overall #1,609 Built Awesome #1,062

Data from Oct 4, 2026, 3:52 PM UTC 3d 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

Built with Build Awesome 4.0.0

Hosted by Self-hosted

Lighthouse Scores LAB Simulated

Performance

↓ -10 (-11%)

Accessibility

no change

100

Best Practices

no change

100

SEO

no change

Metrics LAB FIELD

Core Web Vitals: failing 2 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-05 → 2026-10-02), origin-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	4.64 s poor	↑ +2391 ms (+106.4%) significant 2.12 s – 5.09 s	2.00 s good	84.5% 9.3% 6.2%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	—	—
CLS CWV Cumulative Layout Shift	0 good	↓ -0.161 (-100%) 0 – 0.161	0.150 needs work	72.5% 27% 0.5%
TBT Total Blocking Time	0 ms good	→ no change 0 ms – 0 ms	n/a	—
FCP First Contentful Paint	2.09 s needs work	↑ +284 ms (+15.7%) significant 1.80 s – 2.18 s	1.65 s good	80% 11.6% 8.4%
Speed Index	2.70 s good	↑ +899 ms (+49.8%) 1.80 s – 4.22 s	n/a	—
TTFB Time to First Byte	738 ms good	↑ +13 ms (+1.8%) 695 ms – 752 ms	871 ms needs work	72.7% 22.5% 4.9%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

4.64 s poor

↑ +2391 ms (+106.4%) significant 2.12 s – 5.09 s

2.00 s good

84.5% 9.3% 6.2%

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

n/a

—

CLS CWV Cumulative Layout Shift

0 good

↓ -0.161 (-100%) 0 – 0.161

0.150 needs work

72.5% 27% 0.5%

TBT Total Blocking Time

0 ms good

→ no change 0 ms – 0 ms

n/a

—

FCP First Contentful Paint

2.09 s needs work

↑ +284 ms (+15.7%) significant 1.80 s – 2.18 s

1.65 s good

80% 11.6% 8.4%

Speed Index

2.70 s good

↑ +899 ms (+49.8%) 1.80 s – 4.22 s

n/a

—

TTFB Time to First Byte

738 ms good

↑ +13 ms (+1.8%) 695 ms – 752 ms

871 ms needs work

72.7% 22.5% 4.9%

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 1.19 s

time to first byte 140 ms

LCP LAB Simulated vs LCP FIELD

Lab 4.64 s

Field p75 2.00 s

The lab LCP is 2.32× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	763 kB	↑ +117.0 kB (+18.6%) significant 579 kB – 1.02 MB
Requests	48	→ no change 47 – 74
Third-party Weight	7.1 kB	↑ +29 B (+0.4%) 3.8 kB – 7.1 kB
Third-party CPU	3 ms	↑ +0 ms (+18.2%) 2 ms – 3 ms
Unused JS	0 B	→ no change 0 B – 0 B
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

763 kB

↑ +117.0 kB (+18.6%) significant 579 kB – 1.02 MB

Requests

→ no change 47 – 74

Third-party Weight

7.1 kB

↑ +29 B (+0.4%) 3.8 kB – 7.1 kB

Third-party CPU

3 ms

↑ +0 ms (+18.2%) 2 ms – 3 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	Share	Size	Requests
image	85.1%	649 kB	35
font	10.5%	80.4 kB	1
document	1.4%	11.0 kB	1
script	1.3%	9.6 kB	5
other	1%	7.4 kB	5
stylesheet	0.7%	5.3 kB	1
Total		763 kB	48

Third parties 3 entities

Entity	Transfer	Size	Main thread Simulated
Unpkg	script	3.3 kB	0 ms
Fathom Analytics	script	3.2 kB	1 ms
neatstats.net	script	645 B	1 ms
Total		7.1 kB	3 ms

Entity

Transfer

Size

Main thread Simulated

Unpkg

script

3.3 kB

0 ms

Fathom Analytics

script

3.2 kB

1 ms

neatstats.net

script

645 B

1 ms

Total

7.1 kB

3 ms

Page health

Metric	Value	Change / range
Main Thread Work	396 ms	↓ -17 ms (-4.2%) 384 ms – 510 ms
Long Tasks	0	→ no change 0 – 0
DOM Elements	252	→ no change 222 – 626
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	62	→ no change 14 – 62
A11y Failures	2	→ no change 0 – 2
A11y Failing Nodes	27	→ no change 0 – 29

Metric

Value

Change / range

Trend

Main Thread Work

396 ms

↓ -17 ms (-4.2%) 384 ms – 510 ms

Long Tasks

→ no change 0 – 0

DOM Elements

252

→ no change 222 – 626

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

→ no change 14 – 62

A11y Failures

→ no change 0 – 2

A11y Failing Nodes

→ no change 0 – 29

Main thread work

Task	Share	Duration Simulated
other	60%	238 ms
style layout	20%	80 ms
script evaluation	10%	41 ms
paint composite render	4%	18 ms
parse HTML	4%	17 ms
script parse compile	1%	3 ms
Total		396 ms

Task

Time

Duration Simulated

other

60%

238 ms

style layout

20%

80 ms

script evaluation

10%

41 ms

paint composite render

18 ms

parse HTML

17 ms

script parse compile

3 ms

Total

396 ms

Axe violations axe-core 4.13.0, full rule set

62 violating nodes across 3 rules, 394 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

moderate region — All page content should be contained by landmarks 35 nodes

Offending elements (5 of 35)

#dark-mode-toggle-1 #t

<input id="t" part="toggleCheckbox" type="checkbox">

#dark-mode-toggle-1 label[for="t"]

<label for="t" part="toggleLabel" aria-label="dark" style="--dark-mode-toggle-checkbox-icon: var(--dark-mode-toggle-light-icon,url(&quot;https://googlechromelabs.github.io/dark-mode-toggle/demo/moon.…

.sj-container

<a class="sj-container" href="https://tiltify.com/@rknightuk/stjude2026" target="_blank">

img[src$="robbknight.gif"]

<img width="88" height="31" src="/assets/buttons/robbknight.gif" alt="Robb Knight">

.footer-buttons > div:nth-child(2)

<div><a href="https://11ty.dev"><img width="88" height="31" src="/assets/buttons/built-with-eleventy.gif" alt="Made with Eleventy"></a></div>

serious color-contrast — Elements must meet minimum color contrast ratio thresholds 26 nodes
Offending elements (5 of 26)
1. .header--links > a[href$="about"]
```
<a href="/about">About</a>
```
2. .header--links > a[href$="blog"]
```
<a href="/blog">Blog</a>
```
3. .header--links > a[href$="notes"]
```
<a href="/notes">Notes</a>
```
4. a[href$="explore"]
```
<a href="/explore">Explore</a>
```
5. .header--links__stickers
```
<a href="/shop" class="header--links__stickers">Stickers</a>
```

serious aria-prohibited-attr — Elements must only use permitted ARIA attributes 1 node

Offending element

#dark-mode-toggle-1 label[for="t"]

<label for="t" part="toggleLabel" aria-label="dark" style="--dark-mode-toggle-checkbox-icon: var(--dark-mode-toggle-light-icon,url(&quot;https://googlechromelabs.github.io/dark-mode-toggle/demo/moon.…

Accessibility failures 2 of 21 audits

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 26 nodes
aria-prohibited-attr — Elements use prohibited ARIA attributes 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending	LCP	INP	CLS	FCP	TTFB
2026-09-26	1.64 s	—	0.060	1.29 s	831 ms
2026-09-19	1.49 s	—	0	1.26 s	802 ms
2026-09-12	1.50 s	—	0	1.36 s	832 ms
2026-09-05	1.44 s	—	0	1.29 s	761 ms
2026-08-29	1.43 s	—	0	1.41 s	761 ms
2026-08-22	1.61 s	52 ms	0	1.57 s	812 ms
2026-08-15	1.74 s	52 ms	0	1.70 s	808 ms
2026-08-08	1.77 s	56 ms	0	1.77 s	812 ms
2026-08-01	1.91 s	—	0	1.87 s	820 ms
2026-07-25	1.81 s	—	0	1.78 s	797 ms
2026-07-18	1.67 s	—	0	1.63 s	783 ms
2026-07-11	1.56 s	—	0	1.48 s	754 ms

Runs

Every stored run for this URL, newest first.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 4, 2026, 3:52 PM UTC	81	4.64 s	0	0 ms	763 kB	3/3	±8	2,737 +10%	27.2s	Wayback
Sep 27, 2026, 12:55 PM UTC	91	2.25 s	0.161	0 ms	643 kB	3/3	±16	3,367 +35%	25.8s	Wayback
Sep 20, 2026, 10:45 AM UTC	90	2.23 s	0.161	0 ms	652 kB	3/3	±19	2,497 0%	27.1s	Wayback
Sep 13, 2026, 9:01 AM UTC	90	2.12 s	0.161	0 ms	636 kB	3/3	±20	2,480 0%	26.7s	Wayback
Sep 6, 2026, 5:35 AM UTC	88	3.60 s	0	0 ms	591 kB	3/3	±13	2,506 +1%	27.4s	Wayback
→ Generator changed from Eleventy to Build Awesome first seen this measurement
Aug 30, 2026, 1:08 AM UTC	90	2.12 s	0.161	0 ms	579 kB	3/3	±11	3,402 +37%	24.7s	Wayback
Aug 21, 2026, 6:49 AM UTC	77	5.09 s	0	0 ms	1.02 MB	3/3	±15	2,614 +5%	31.2s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

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Stack

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB FIELD

LCP Subparts LAB 🐇 Unthrottled

LCP LAB 🤖 Simulated vs LCP FIELD

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 2 of 21 audits

Hygiene

Measurement log

Field history 25 weeks

Runs

Embed this score

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled

LCP LAB Simulated vs LCP FIELD