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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eleventy-solo-starter-njk.vercel.app

https://eleventy-solo-starter-njk.vercel.app/

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

Ranks Overall #173 Build Awesome Starters #22

Data from Sep 19, 2026, 3:26 AM UTC old, older than this category's 14 days freshness target Measured once a week · 14 runs since Aug 20, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

The most recent attempt failed (9 in a row). ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404)

Numbers below are from the last successful run, old.

Retries are backing off, so this site is being attempted less often than the rest.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Eleventy 0.12.1 Built with Eleventy 0.12.1
Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

100
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 799 ms good ↓ -12 ms (-1.5%) 799 ms – 813 ms
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 799 ms good ↓ -12 ms (-1.5%) 799 ms – 813 ms
Speed Index 799 ms good ↓ -12 ms (-1.5%) 799 ms – 813 ms
TTFB Time to First Byte 630 ms good ↓ -3 ms (-0.5%) 622 ms – 636 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 66 ms
time to first byte 26 ms

Page weight

Metric Value Change / range Trend
Page Weight 13.1 kB ↑ +12 B (+0.1%) 13.1 kB – 13.2 kB
Requests 3 → no change 3 – 3
Third-party Weight 0 B → no change 0 B – 0 B
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
stylesheet 49.4% 6.5 kB 1
other 36.4% 4.8 kB 1
document 14.1% 1.9 kB 1
Total 13.1 kB 3

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

0.8% of pixels differ — they are nearly identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric Value Change / range Trend
Main Thread Work 95 ms ↓ -14 ms (-12.7%) 92 ms – 117 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 73 → no change 73 – 73
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 54% 51 ms
style layout 29% 28 ms
script evaluation 9% 9 ms
parse HTML 5% 4 ms
paint composite render 3% 3 ms
script parse compile 0% 0 ms
Total 95 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 156 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 8, 2026, 2:34 AM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 11.7s
Oct 6, 2026, 11:09 PM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 12.9s
Oct 5, 2026, 6:17 PM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 17.1s
Oct 1, 2026, 2:40 PM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 12.2s
Sep 30, 2026, 4:04 PM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 12.4s
Sep 30, 2026, 1:08 AM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 12.4s
Sep 29, 2026, 5:58 PM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 12.2s
Sep 29, 2026, 11:11 AM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 12.4s
Sep 26, 2026, 9:12 AM UTC ERRORED_DOCUMENT_REQUEST: Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 404) 12.9s
Sep 19, 2026, 3:26 AM UTC 100 799 ms 0 0 ms 13.1 kB 3/3 ±0 2,943 +18% 22.2s Wayback
Sep 12, 2026, 1:11 AM UTC 100 811 ms 0 0 ms 13.1 kB 3/3 ±0 2,514 +1% 22.2s Wayback
Sep 4, 2026, 11:53 PM UTC 100 813 ms 0 0 ms 13.1 kB 3/3 ±0 2,809 +13% 20.7s Wayback
Aug 28, 2026, 11:33 PM UTC 100 799 ms 0 0 ms 13.2 kB 3/3 ±0 3,453 +39% 19.4s Wayback
Aug 20, 2026, 9:32 PM UTC 100 800 ms 0 0 ms 13.1 kB 3/3 ±0 2,333 -6% 20.2s Wayback

Embed this score

Use this web component to show eleventy-solo-starter-njk.vercel.app'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://eleventy-solo-starter-njk.vercel.app/"></speedlify2-score>