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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11ty-gallery.netlify.app

https://11ty-gallery.netlify.app/

100PERF 100A11Y 96BEST 100SEO ✓AXE –CWV

Ranks Overall #325 Build Awesome Starters #39

Data from Oct 2, 2026, 10:56 PM UTC old Measured once a week · 7 runs since Aug 20, 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

Eleventy 3.1.6 Built with Eleventy 3.1.6
Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

100
Performance
no change
100
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 1.05 s good ↓ -15 ms (-1.4%) 1.05 s – 1.08 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 879 ms good ↓ -51 ms (-5.5%) significant 839 ms – 930 ms
Speed Index 879 ms good ↓ -693 ms (-44.1%) significant 839 ms – 1.57 s
TTFB Time to First Byte 603 ms good ↓ -165 ms (-21.5%) significant 603 ms – 768 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 24 ms
resource load delay 12 ms
resource load duration 8 ms
time to first byte 5 ms

Page weight

Metric Value Change / range Trend
Page Weight 76.8 kB ↓ -29.9 kB (-28.5%) significant 76.8 kB – 107 kB
Requests 10 → no change 10 – 10
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
image 61.3% 28.8 kB 2
script 26.8% 12.6 kB 2
stylesheet 6.1% 2.9 kB 2
other 3.9% 1.8 kB 2
document 2% 923 B 1
Total 76.8 kB 10

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 171 ms ↑ +12 ms (+7.8%) 118 ms – 183 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 20 → no change 20 – 20
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 77% 131 ms
style layout 10% 18 ms
script evaluation 7% 13 ms
parse HTML 3% 5 ms
paint composite render 2% 4 ms
script parse compile 1% 1 ms
Total 171 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 51 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Best Practices failures 1 of 18 audits

  • image-size-responsive — Serves images with low resolution 2 items

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 2, 2026, 10:56 PM UTC 100 1.05 s 0 0 ms 76.8 kB 3/3 ±0 2,382 -4% 22.5s Wayback
Sep 25, 2026, 11:18 AM UTC 100 1.07 s 0 0 ms 107 kB 3/3 ±0 2,488 0% 21.7s Wayback
Sep 18, 2026, 8:50 AM UTC 100 1.07 s 0 0 ms 107 kB 3/3 ±0 2,501 +1% 22.1s Wayback
Sep 11, 2026, 8:39 AM UTC 100 1.06 s 0 0 ms 107 kB 3/3 ±0 2,253 -9% 21.7s Wayback
Sep 4, 2026, 5:42 AM UTC 100 1.08 s 0 0 ms 107 kB 3/3 ±0 3,332 +34% 21.8s Wayback
Aug 28, 2026, 1:19 AM UTC 100 1.05 s 0 0 ms 107 kB 3/3 ±0 2,406 -3% 22.1s Wayback
Aug 20, 2026, 7:03 PM UTC 100 1.06 s 0 0 ms 107 kB 3/3 ±5 2,247 -10% 22.2s Wayback

Embed this score

Use this web component to show 11ty-gallery.netlify.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://11ty-gallery.netlify.app/"></speedlify2-score>