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.

Charts Compare Measurement runs Embed a score Open to Work

eleventyduo.netlify.app

https://eleventyduo.netlify.app/

50PERF 100A11Y 100BEST 100SEO ✓AXE –CWV

Ranks Overall #539 Build Awesome Starters #53

Data from Oct 10, 2026, 11:22 PM UTC old Measured once a week · 8 runs since Aug 20, 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 4,261, 71% faster than this project's median of 2,487. 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

Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

50
Performance
↓ -6 (-10.7%)
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 9.22 s poor ↓ -890 ms (-8.8%) significant 6.56 s – 10.11 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0.003 good ↑ +0.003 0 – 0.003
TBT Total Blocking Time 301 ms needs work ↑ +301 ms 0 ms – 342 ms
FCP First Contentful Paint 9.22 s poor ↓ -890 ms (-8.8%) significant 6.56 s – 10.11 s
Speed Index 9.22 s poor ↓ -890 ms (-8.8%) significant 6.56 s – 10.11 s
TTFB Time to First Byte 620 ms good ↑ +16 ms (+2.6%) 604 ms – 629 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 233 ms
time to first byte 20 ms

Page weight

Metric Value Change / range Trend
Page Weight 1.52 MB ↓ -14 B 963 kB – 1.55 MB
Requests 7 → no change 7 – 7
Third-party Weight 1.51 MB ↓ -10 B 954 kB – 1.54 MB
Third-party CPU 89 ms ↓ -72 ms (-44.9%) significant 89 ms – 161 ms
Unused JS 1.44 MB ↓ -9 B 878 kB – 1.46 MB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 98.5% 1.49 MB 2
font 1.2% 17.5 kB 1
stylesheet 0.2% 3.6 kB 2
document 0.1% 2.2 kB 1
Total 1.52 MB 7

Third parties 2 entities

Entity Transfer Size Main thread Simulated
JSDelivr CDN script 1.49 MB 89 ms
Google Fonts 18.3 kB 0 ms
Total 1.51 MB 89 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 494 ms ↓ -286 ms (-36.7%) significant 492 ms – 780 ms
Long Tasks 1 → no change 1 – 1
DOM Elements 178 → no change 178 – 178
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
script parse compile 54% 268 ms
script evaluation 21% 102 ms
other 15% 75 ms
style layout 5% 27 ms
garbage collection 2% 10 ms
paint composite render 1% 7 ms
parse HTML 1% 5 ms
Total 494 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 390 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 10, 2026, 11:22 PM UTC 50 9.22 s 0.003 301 ms 1.52 MB 3/3 ±0 4,261 +71% 22.7s Wayback
Oct 3, 2026, 5:56 PM UTC 56 10.11 s 0 0 ms 1.52 MB 3/3 ±0 2,481 0% 28.2s Wayback
Sep 26, 2026, 2:11 PM UTC 56 10.01 s 0 0 ms 1.55 MB 3/3 ±10 3,381 +36% 26.9s Wayback
Sep 19, 2026, 12:55 PM UTC 56 10.08 s 0 0 ms 1.55 MB 3/3 ±10 2,489 0% 30.3s Wayback
Sep 12, 2026, 11:31 AM UTC 56 10.10 s 0 0 ms 1.55 MB 3/3 ±5 2,489 0% 30.6s Wayback
Sep 5, 2026, 8:07 AM UTC 59 7.08 s 0.003 0 ms 964 kB 3/3 ±9 2,325 -7% 26s Wayback
Aug 29, 2026, 5:48 AM UTC 54 6.56 s 0.003 312 ms 963 kB 3/3 ±0 3,020 +21% 24s Wayback
Aug 20, 2026, 9:27 PM UTC 53 6.64 s 0.003 342 ms 963 kB 3/3 ±6 3,273 +32% 25.4s Wayback

Embed this score

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