seancdavis.com

https://www.seancdavis.com/

Ranks Overall #1,340 Built Awesome #914

Data from Oct 5, 2026, 11:57 PM UTC 2d 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

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 4,189, 69% faster than this project's median of 2,486. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

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

↓ -9 (-9.2%)

Accessibility

no change

100

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	1.95 s good	↓ -321 ms (-14.1%) 1.85 s – 2.79 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—
CLS CWV (estimate) Cumulative Layout Shift	0.220 needs work	↑ +0.220 0 – 0.404
TBT Total Blocking Time	26 ms good	↓ -55 ms (-67.9%) significant 26 ms – 127 ms
FCP First Contentful Paint	1.04 s good	↑ +106 ms (+11.3%) 936 ms – 1.36 s
Speed Index	1.04 s good	↑ +106 ms (+11.3%) 936 ms – 1.36 s
TTFB Time to First Byte	634 ms good	↑ +14 ms (+2.3%) 606 ms – 759 ms

Metric

Lab Simulated

Value

Change / range

Trend

LCP CWV (estimate) Largest Contentful Paint

1.95 s good

↓ -321 ms (-14.1%) 1.85 s – 2.79 s

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

n/a

—

CLS CWV (estimate) Cumulative Layout Shift

0.220 needs work

↑ +0.220 0 – 0.404

TBT Total Blocking Time

26 ms good

↓ -55 ms (-67.9%) significant 26 ms – 127 ms

FCP First Contentful Paint

1.04 s good

↑ +106 ms (+11.3%) 936 ms – 1.36 s

Speed Index

1.04 s good

↑ +106 ms (+11.3%) 936 ms – 1.36 s

TTFB Time to First Byte

634 ms good

↑ +14 ms (+2.3%) 606 ms – 759 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.

time to first byte 346 ms

resource load duration 88 ms

element render delay 22 ms

resource load delay 6 ms

Page weight

Metric	Value	Change / range
Page Weight	563 kB	↑ +17.5 kB (+3.3%) 538 kB – 563 kB
Requests	24	↑ +1 (+4.3%) 23 – 24
Third-party Weight	443 kB	↑ +17.1 kB (+4.1%) 418 kB – 443 kB
Third-party CPU	39 ms	↓ -18 ms (-31.2%) significant 39 ms – 66 ms
Unused JS	73.2 kB	↓ -2.7 kB (-3.7%) 72.9 kB – 76.0 kB
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

563 kB

↑ +17.5 kB (+3.3%) 538 kB – 563 kB

Requests

↑ +1 (+4.3%) 23 – 24

Third-party Weight

443 kB

↑ +17.1 kB (+4.1%) 418 kB – 443 kB

Third-party CPU

39 ms

↓ -18 ms (-31.2%) significant 39 ms – 66 ms

Unused JS

73.2 kB

↓ -2.7 kB (-3.7%) 72.9 kB – 76.0 kB

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
image	47.2%	266 kB	14
script	34.4%	193 kB	2
font	13.7%	77.2 kB	4
document	2.8%	15.8 kB	1
stylesheet	1.5%	8.4 kB	1
other	0.4%	2.4 kB	2
Total		563 kB	24

Third parties 4 entities

Entity	Transfer	Size	Main thread Simulated
imgix	image	194 kB	0 ms
Google Tag Manager	script	177 kB	39 ms
YouTube	image	71.1 kB	0 ms
Google Analytics		550 B	0 ms
Total		443 kB	39 ms

Entity

Transfer

Size

Main thread Simulated

imgix

image

194 kB

0 ms

Google Tag Manager

script

177 kB

39 ms

YouTube

image

71.1 kB

0 ms

Google Analytics

550 B

0 ms

Total

443 kB

39 ms

Page health

Metric	Value	Change / range
Main Thread Work	667 ms	↓ -297 ms (-30.8%) significant 667 ms – 1.37 s
Long Tasks	2	↓ -1 (-33.3%) 2 – 4
DOM Elements	518	→ no change 518 – 518
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	30	→ no change 30 – 30
A11y Failures	3	→ no change 3 – 3
A11y Failing Nodes	6	→ no change 6 – 6

Metric

Value

Change / range

Trend

Main Thread Work

667 ms

↓ -297 ms (-30.8%) significant 667 ms – 1.37 s

Long Tasks

↓ -1 (-33.3%) 2 – 4

DOM Elements

518

→ no change 518 – 518

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

→ no change 30 – 30

A11y Failures

→ no change 3 – 3

A11y Failing Nodes

→ no change 6 – 6

Main thread work

Task	Share	Duration Simulated
script evaluation	28%	186 ms
other	27%	182 ms
style layout	24%	160 ms
paint composite render	13%	87 ms
script parse compile	4%	28 ms
parse HTML	3%	17 ms
garbage collection	1%	7 ms
Total		667 ms

Task

Time

Duration Simulated

script evaluation

28%

186 ms

other

27%

182 ms

style layout

24%

160 ms

paint composite render

13%

87 ms

script parse compile

28 ms

parse HTML

17 ms

garbage collection

7 ms

Total

667 ms

Axe violations axe-core 4.13.0, full rule set

30 violating nodes across 5 rules, 835 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 23 nodes

Offending elements (5 of 23)

.layout--home--hero
```
<div class="layout--home--hero">
```

.py-12.container:nth-child(2) > .mb-8.justify-between.flex > div:nth-child(1)

<div><div class="h-1 bg-green w-12 mb-2"></div><h2 class="text-4xl mb-1">Recent Posts</h2><p class="italic">The freshest written thoughts, tips, and tutorials from the site.</p></div>

.py-12.container:nth-child(2) > .mb-8.justify-between.flex > div:nth-child(2) > .items-center.flex[href$="posts"] > .mr-1.inline-block
```
<span class="inline-block mr-1">All Posts</span>
```
.py-12.container:nth-child(2) > .md\:gap-10.md\:grid-cols-2.gap-4
```
<div class="grid md:grid-cols-2 gap-4 md:gap-10">
```

.py-12.container:nth-child(3) > .mb-8.justify-between.flex > div:nth-child(1)

<div><div class="h-1 bg-green w-12 mb-2"></div><h2 class="text-4xl mb-1">JavaScript</h2><p class="italic">The latest from one of the site's most popular subjects.</p></div>

serious link-name — Links must have discernible text 4 nodes

Offending elements

.bg-center.bg-no-repeat.bg-cover:nth-child(1)

<a href="https://www.youtube.com/watch?v=8vUYWgg-DPU" class="relative block bg-center bg-no-repeat bg-cover" style="padding-bottom:56%;background-image:url(https://img.youtube.com/vi/8vUYWgg-DPU/hqde…

.bg-center.bg-no-repeat.bg-cover:nth-child(2)

<a href="https://www.youtube.com/watch?v=K3ymW_2oRL8" class="relative block bg-center bg-no-repeat bg-cover" style="padding-bottom:56%;background-image:url(https://img.youtube.com/vi/K3ymW_2oRL8/hqde…

.bg-center.bg-no-repeat.bg-cover:nth-child(3)

<a href="https://www.youtube.com/watch?v=Ljj1wGFJqPY" class="relative block bg-center bg-no-repeat bg-cover" style="padding-bottom:56%;background-image:url(https://img.youtube.com/vi/Ljj1wGFJqPY/hqde…

.bg-center.bg-no-repeat.bg-cover:nth-child(4)

<a href="https://www.youtube.com/watch?v=FFBMgrAa6bs" class="relative block bg-center bg-no-repeat bg-cover" style="padding-bottom:56%;background-image:url(https://img.youtube.com/vi/FFBMgrAa6bs/hqde…

serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node

Offending element

a[href$="repost-stackbit/"]

<a href="/topics/repost-stackbit/" class="bg-gray-200 text-gray-800 p-1 inline-block leading-none transition-all duration-300 hover:opacity-75 mr-1" style="background-color:#ff364e;color:#fff">Repost…

moderate landmark-one-main — Document should have one main landmark 1 node
Offending element
1. html
```
<html lang="en">
```
moderate page-has-heading-one — Page should contain a level-one heading 1 node
Offending element
1. html
```
<html lang="en">
```

Accessibility failures 3 of 24 audits

link-name — Links do not have a discernible name 4 nodes
color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node
landmark-one-main — Document does not have a main landmark. 1 node

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

Oct 5, 2026, 11:57 PM UTC 89 1.95 s 0.220 26 ms 563 kB 3/3 ±19 4,189 +69% 22.6s Wayback

Sep 28, 2026, 11:44 PM UTC 98 2.27 s 0 81 ms 545 kB 3/3 ±12 2,502 +1% 26.4s Wayback

Sep 21, 2026, 7:53 PM UTC 85 2.79 s 0.212 64 ms 545 kB 3/3 ±20 2,456 -1% 26.1s Wayback

Sep 14, 2026, 5:47 PM UTC 99 1.85 s 0 65 ms 542 kB 3/3 ±33 2,460 -1% 27.2s Wayback

Sep 7, 2026, 2:56 PM UTC 78 2.72 s 0.404 57 ms 542 kB 3/3 ±20 2,290 -8% 25.1s Wayback

Aug 31, 2026, 10:35 AM UTC 98 1.91 s 0 127 ms 539 kB 3/3 ±52 2,174 -13% 32.4s Wayback

Aug 21, 2026, 6:40 PM UTC 96 2.79 s 0.001 57 ms 538 kB 3/3 ±17 2,363 -5% 25.1s Wayback

Aug 21, 2026, 11:35 AM UTC TRACING_ALREADY_STARTED: An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse. 22.3s

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 5, 2026, 11:57 PM UTC	89	1.95 s	0.220	26 ms	563 kB	3/3	±19	4,189 +69%	22.6s	Wayback
Sep 28, 2026, 11:44 PM UTC	98	2.27 s	0	81 ms	545 kB	3/3	±12	2,502 +1%	26.4s	Wayback
Sep 21, 2026, 7:53 PM UTC	85	2.79 s	0.212	64 ms	545 kB	3/3	±20	2,456 -1%	26.1s	Wayback
Sep 14, 2026, 5:47 PM UTC	99	1.85 s	0	65 ms	542 kB	3/3	±33	2,460 -1%	27.2s	Wayback
Sep 7, 2026, 2:56 PM UTC	78	2.72 s	0.404	57 ms	542 kB	3/3	±20	2,290 -8%	25.1s	Wayback
Aug 31, 2026, 10:35 AM UTC	98	1.91 s	0	127 ms	539 kB	3/3	±52	2,174 -13%	32.4s	Wayback
Aug 21, 2026, 6:40 PM UTC	96	2.79 s	0.001	57 ms	538 kB	3/3	±17	2,363 -5%	25.1s	Wayback
Aug 21, 2026, 11:35 AM UTC	`TRACING_ALREADY_STARTED: An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse.`	22.3s

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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 3 of 24 audits

Hygiene

Measurement log

Embed this score

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled