speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

mithril-by-examples.js.org

https://mithril-by-examples.js.org/

100 83 100 92 AXE CWV

Ranks Overall #1,207 Built Awesome #932

Data from Sep 5, 2026, 8:05 PM UTC old Measured once a week · 3 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Wayback Machine

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 3,409, 38% faster than this project's median of 2,480. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

Stack

Eleventy Built with Eleventy
GitHub Pages Hosted by GitHub Pages

Lighthouse Scores

100
Performance
no change
83
Accessibility
no change
100
Best Practices
no change
92
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.55 s 1.52 s ↑ +27 ms (+1.8%) 1.52 s 1.55 s
CLS Cumulative Layout Shift 0 0 → no change 0 0
TBT Total Blocking Time 0 ms 0 ms → no change 0 ms 0 ms
FCP First Contentful Paint 797 ms 787 ms ↑ +10 ms (+1.3%) 787 ms 797 ms
Speed Index 797 ms 787 ms ↑ +10 ms (+1.3%) 787 ms 797 ms
TTFB Time to First Byte 628 ms 613 ms ↑ +15 ms (+2.4%) 613 ms 628 ms

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.

element render delay 126 ms
time to first byte 30 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 28.9 kB 28.8 kB ↑ +62 B (+0.2%) 28.7 kB 28.9 kB
Requests 8 8 → no change 8 8
Third-party Weight 0 B 0 B → no change 0 B 0 B
Third-party CPU 0 ms 0 ms → no change 0 ms 0 ms
Unused JS 0 B 0 B → no change 0 B 0 B
Unused CSS 0 B 0 B → no change 0 B 0 B

By resource type

  • script 53% 15.3 kB · 2 req
  • stylesheet 34.2% 9.9 kB · 4 req
  • document 8% 2.3 kB · 1 req
  • image 4.9% 1.4 kB · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 119 ms 150 ms ↓ -31 ms (-20.9%) 119 ms 161 ms
Long Tasks 0 0 → no change 0 0
DOM Elements 119 119 → no change 119 119
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 30 30 → no change 30 30
A11y Failures 3 3 → no change 3 3
A11y Failing Nodes 26 26 → no change 26 26

Main thread work

other 63 ms
style layout 21 ms
script evaluation 20 ms
parse HTML 7 ms
script parse compile 4 ms
paint composite render 4 ms

Axe violations axe-core 4.13.0, full rule set

30 violating nodes across 4 rules, 242 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 24 nodes
  • moderate region — All page content should be contained by landmarks 4 nodes
  • moderate landmark-one-main — Document should have one main landmark 1 node
  • serious link-name — Links must have discernible text 1 node

Accessibility failures 3 of 15 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 24 nodes
  • link-name — Links do not have a discernible name 1 node
  • landmark-one-main — Document does not have a main landmark. 1 node

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
Sep 5, 2026, 8:05 PM UTC 100 1.55 s 0 0 ms 28.9 kB 3/3 ±0 3,409 +37% 20s Wayback
Aug 29, 2026, 7:43 PM UTC 100 1.52 s 0 0 ms 28.8 kB 3/3 ±0 2,470 0% 20.3s Wayback
Aug 21, 2026, 4:44 AM UTC 100 1.54 s 0 0 ms 28.7 kB 3/3 ±0 2,493 +1% 21s Wayback

Embed this score

Use this web component to show mithril-by-examples.js.org'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://mithril-by-examples.js.org/"></speedlify2-score>