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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nathan-long.com

https://nathan-long.com/

91PERF 100A11Y 100BEST 100SEO ✓AXE –CWV

Ranks Overall #411 Built Awesome #318

Data from Oct 4, 2026, 10:57 AM 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

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 3,371, 36% 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

Eleventy 3.1.2 Built with Eleventy 3.1.2
GitHub Pages Hosted by GitHub Pages

Lighthouse Scores LAB Simulated

91
Performance
no change
100
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 3.48 s needs work ↓ -7 ms (-0.2%) 3.03 s – 3.50 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 854 ms good ↓ -7 ms (-0.8%) 849 ms – 866 ms
Speed Index 854 ms good ↓ -7 ms (-0.8%) 849 ms – 866 ms
TTFB Time to First Byte 609 ms good ↓ -1 ms (-0.2%) 603 ms – 621 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 51 ms
time to first byte 11 ms

Page weight

Metric Value Change / range Trend
Page Weight 559 kB ↑ +45 B 559 kB – 559 kB
Requests 19 → no change 19 – 19
Third-party Weight 107 kB → no change 107 kB – 107 kB
Third-party CPU 0 ms → no change 0 ms – 0 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
font 76% 424 kB 6
image 19.2% 107 kB 1
stylesheet 1.5% 8.2 kB 1
script 1.4% 7.6 kB 6
other 1.1% 6.4 kB 3
document 0.8% 4.4 kB 1
Total 559 kB 19

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Amazon Web Services image 107 kB 0 ms
Total 107 kB 0 ms

Page health

Metric Value Change / range Trend
Main Thread Work 163 ms ↓ -93 ms (-36.3%) significant 163 ms – 255 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 129 → no change 129 – 129
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 1
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 60% 97 ms
style layout 18% 29 ms
script evaluation 12% 20 ms
parse HTML 6% 9 ms
paint composite render 3% 5 ms
script parse compile 1% 2 ms
Total 163 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 197 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

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
Oct 4, 2026, 10:57 AM UTC 91 3.48 s 0 0 ms 559 kB 3/3 ±0 3,371 +36% 19.6s Wayback
Sep 27, 2026, 6:18 AM UTC 91 3.48 s 0 0 ms 559 kB 3/3 ±4 2,538 +2% 22.9s Wayback
Sep 20, 2026, 12:43 AM UTC 91 3.49 s 0 0 ms 559 kB 3/3 ±8 2,676 +8% 21.8s Wayback
Sep 12, 2026, 11:48 PM UTC 91 3.50 s 0 0 ms 559 kB 3/3 ±0 2,483 0% 21.5s Wayback
Sep 5, 2026, 8:08 PM UTC 94 3.03 s 0 0 ms 559 kB 3/3 ±1 3,349 +35% 20.6s Wayback
Aug 29, 2026, 7:51 PM UTC 91 3.49 s 0 0 ms 559 kB 3/3 ±10 2,485 0% 20.4s Wayback
Aug 21, 2026, 4:52 AM UTC 91 3.47 s 0 0 ms 559 kB 3/3 ±10 2,507 +1% 23.8s Wayback

Embed this score

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