speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

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seancdavis.com

https://www.seancdavis.com/

99 90 100 100 ✗AXE –CWV

Ranks Overall #1,106 Built Awesome #852

Data from Sep 14, 2026, 5:47 PM UTC old Measured once a week · 5 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · 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).

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Lighthouse Scores LAB Simulated

99
Performance
↑ +21 (+26.9%)
90
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
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 1.85 s good ↓ -869 ms (-31.9%) 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 good ↓ -0.404 (-100%) 0 – 0.404
TBT Total Blocking Time 65 ms good ↑ +8 ms (+14%) 57 ms – 127 ms
FCP First Contentful Paint 949 ms good ↓ -22 ms (-2.3%) 949 ms – 1.36 s
Speed Index 949 ms good ↓ -22 ms (-2.3%) 949 ms – 1.36 s
TTFB Time to First Byte 634 ms good ↑ +27 ms (+4.4%) 606 ms – 634 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 36 ms
resource load delay 35 ms
element render delay 28 ms
resource load duration 21 ms

Page weight

Metric Value Change / range Trend
Page Weight 542 kB ↑ +543 B (+0.1%) 538 kB – 542 kB
Requests 23 → no change 23 – 23
Third-party Weight 423 kB ↑ +602 B (+0.1%) 418 kB – 423 kB
Third-party CPU 55 ms ↑ +1 ms (+0.9%) 54 ms – 66 ms
Unused JS 75.0 kB ↓ -180 B (-0.2%) 72.9 kB – 75.2 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
image 46.2% 250 kB 14
script 34.9% 189 kB 2
font 14.2% 77.1 kB 4
document 2.9% 15.6 kB 1
stylesheet 1.5% 8.3 kB 1
other 0.3% 1.8 kB 1
Total 542 kB 23

Third parties 3 entities

Entity Transfer Size Main thread Simulated
imgix image 179 kB 0 ms
Google Tag Manager script 173 kB 55 ms
YouTube image 70.7 kB 0 ms
Total 423 kB 55 ms

Page health

Metric Value Change / range Trend
Main Thread Work 915 ms → no change 915 ms – 1.37 s
Long Tasks 3 ↑ +1 (+50%) 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

Main thread work

Task Time Share Duration Simulated
style layout 30% 276 ms
script evaluation 28% 252 ms
other 21% 193 ms
paint composite render 14% 127 ms
script parse compile 5% 46 ms
parse HTML 2% 21 ms
Total 915 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
  • serious link-name — Links must have discernible text 4 nodes
  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node
  • moderate landmark-one-main — Document should have one main landmark 1 node
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node

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 PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
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 -12% 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

Embed this score

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