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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-shortcomps.netlify.app

https://eleventy-shortcomps.netlify.app/

98PERF 91A11Y 92BEST 91SEO !AXE –CWV

Ranks Overall #873 Build Awesome Starters #108

Data from Oct 5, 2026, 11:50 PM UTC old Measured once a week · 3 runs since Sep 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

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Lighthouse Scores LAB Simulated

98
Performance
no change
91
Accessibility
no change
92
Best Practices
no change
91
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 2.34 s good ↑ +5 ms (+0.2%) 2.29 s – 2.34 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.002 good → no change 0.002 – 0.002
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 779 ms good ↓ -5 ms (-0.6%) 765 ms – 784 ms
Speed Index 779 ms good ↓ -5 ms (-0.6%) 765 ms – 784 ms
TTFB Time to First Byte 620 ms good ↓ -7 ms (-1.1%) 607 ms – 627 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.

resource load duration 76 ms
time to first byte 22 ms
element render delay 9 ms
resource load delay 7 ms

Page weight

Metric Value Change / range Trend
Page Weight 30.3 kB ↓ -14 B 15.1 kB – 30.3 kB
Requests 4 → no change 3 – 4
Third-party Weight 14.3 kB ↓ -5 B 14.3 kB – 14.4 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
image 95.2% 14.3 kB 1
document 4.2% 629 B 1
other 0.6% 93 B 1
Total 30.3 kB 4

Third parties 1 entities

Entity Transfer Size Main thread Simulated
11ty.dev image 14.3 kB 0 ms
Total 14.3 kB 0 ms

Without JavaScript

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

Scripts disabled
As rendered

0% of pixels differ — they are 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 77 ms ↑ +3 ms (+4.2%) 74 ms – 77 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 24 → no change 24 – 24
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 → no change 1 – 1
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

Task Time Share Duration Simulated
other 65% 50 ms
style layout 19% 15 ms
script evaluation 10% 8 ms
paint composite render 4% 3 ms
parse HTML 2% 1 ms
script parse compile 1% 0 ms
Total 77 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 71 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 1 of 12 audits

  • html-has-lang — `<html>` element does not have a `[lang]` attribute 1 node

Best Practices failures 2 of 18 audits

  • image-size-responsive — Serves images with low resolution 1 item
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item

SEO failures 1 of 8 audits

  • meta-description — Document does not have a meta description

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 5, 2026, 11:50 PM UTC 98 2.34 s 0.002 0 ms 30.3 kB 3/3 ±3 2,999 +21% 20.5s Wayback
Sep 28, 2026, 6:29 PM UTC 98 2.34 s 0.002 0 ms 30.3 kB 3/3 ±2 3,426 +38% 20.6s Wayback
Sep 21, 2026, 2:52 PM UTC 98 2.29 s 0.002 0 ms 15.1 kB 3/3 ±0 2,450 -1% 19.9s Wayback

Embed this score

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<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://eleventy-shortcomps.netlify.app/"></speedlify2-score>