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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jeremiahlee.com

https://www.jeremiahlee.com/

100PERF 97A11Y 96BEST 100SEO !AXE –CWV

Ranks Overall #742 Built Awesome #552

Data from Oct 5, 2026, 5:57 PM UTC 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

Cloudflare Hosted by Cloudflare

Lighthouse Scores LAB Simulated

100
Performance
no change
97
Accessibility
no change
96
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 1.56 s good ↑ +116 ms (+8%) 1.45 s – 1.75 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 934 ms good ↓ -361 ms (-27.9%) significant 788 ms – 1.30 s
Speed Index 934 ms good ↓ -361 ms (-27.9%) significant 788 ms – 1.30 s
TTFB Time to First Byte 634 ms good ↑ +145 ms (+29.7%) significant 470 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.

element render delay 72 ms
time to first byte 50 ms

Page weight

Metric Value Change / range Trend
Page Weight 204 kB ↑ +59 B 201 kB – 204 kB
Requests 13 → no change 13 – 13
Third-party Weight 10.3 kB ↓ -27 B (-0.3%) 9.6 kB – 11.5 kB
Third-party CPU 8 ms ↓ -0 ms (-1.2%) 7 ms – 10 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 Transfer Share Size Requests
image 82% 168 kB 1
script 7.6% 15.6 kB 4
stylesheet 7.4% 15.1 kB 2
other 1.8% 3.7 kB 5
document 1.2% 2.4 kB 1
Total 204 kB 13

Third parties 2 entities

Entity Transfer Size Main thread Simulated
Cloudflare script 10.3 kB 8 ms
cloudflareinsights.com 0 B 0 ms
Total 10.3 kB 8 ms

Page health

Metric Value Change / range Trend
Main Thread Work 231 ms ↓ -54 ms (-19%) significant 163 ms – 285 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 31 → no change 31 – 31
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

Main thread work

Task Time Share Duration Simulated
other 42% 98 ms
style layout 26% 59 ms
script evaluation 22% 51 ms
parse HTML 5% 12 ms
script parse compile 3% 6 ms
paint composite render 2% 5 ms
Total 231 ms

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 2 rules, 79 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 1 of 13 audits

  • landmark-one-main — Document does not have a main landmark. 1 node

Best Practices failures 1 of 17 audits

  • errors-in-console — Browser errors were logged to the console 2 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 2 console errors

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 5, 2026, 5:57 PM UTC 100 1.56 s 0 0 ms 204 kB 3/3 ±0 2,437 -2% 21.7s Wayback
Sep 28, 2026, 10:37 AM UTC 100 1.45 s 0 0 ms 204 kB 3/3 ±3 2,506 +1% 21.4s Wayback
Sep 21, 2026, 1:08 AM UTC 100 1.75 s 0 0 ms 204 kB 3/3 ±0 3,010 +21% 21s Wayback
Sep 14, 2026, 12:45 AM UTC 100 1.68 s 0 0 ms 204 kB 3/3 ±0 2,952 +19% 20.8s Wayback
Sep 6, 2026, 11:30 PM UTC 100 1.53 s 0 0 ms 201 kB 3/3 ±0 3,027 +22% 19.9s Wayback
Aug 30, 2026, 11:12 PM UTC 100 1.54 s 0 0 ms 201 kB 3/3 ±0 2,471 -1% 24.2s Wayback
Aug 21, 2026, 12:47 PM UTC 100 1.53 s 0 0 ms 202 kB 3/3 ±0 2,500 +1% 20.8s Wayback

Embed this score

Use this web component to show jeremiahlee.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.jeremiahlee.com/"></speedlify2-score>