speedlify2

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

Charts Compare Measurement runs Embed a score

sixtysix.frontendweekly.tokyo

https://sixtysix.frontendweekly.tokyo/

100 98 100 100 !AXE –CWV

Ranks Overall #592 Built Awesome #478

Data from Sep 6, 2026, 10:27 AM UTC old Measured once a week · 3 runs since Aug 21, 2026

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

Stack

Eleventy Built with Eleventy
Netlify Hosted by Netlify

Lighthouse Scores

100
Performance
no change
98
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics Lighthouse, mobile

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 Lighthouse
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 848 ms good ↑ +3 ms (+0.4%) 845 ms – 849 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 848 ms good ↑ +3 ms (+0.4%) 845 ms – 849 ms
Speed Index 848 ms good ↑ +3 ms (+0.4%) 845 ms – 849 ms
TTFB Time to First Byte 621 ms good ↓ -9 ms (-1.4%) 605 ms – 630 ms

LCP Subparts lab observed, unthrottled

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

element render delay 60 ms
time to first byte 23 ms

Page weight

Metric Value Change / range Trend
Page Weight 9.7 kB ↑ +59 B (+0.6%) 9.7 kB – 9.7 kB
Requests 2 → no change 2 – 2
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

  • document 100% 9.7 kB · 1 req

Page health

Metric Value Change / range Trend
Main Thread Work 209 ms ↑ +28 ms (+15.4%) 182 ms – 233 ms
Long Tasks 1 → no change 1 – 1
DOM Elements 517 → no change 517 – 517
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

style layout 113 ms
other 62 ms
paint composite render 12 ms
script evaluation 12 ms
parse HTML 10 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 825 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate heading-order — Heading levels should only increase by one 1 node

Accessibility failures 1 of 24 audits

  • heading-order — Heading elements are not in a sequentially-descending order 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 6, 2026, 10:27 AM UTC 100 848 ms 0 0 ms 9.7 kB 3/3 ±0 2,566 +3% 22.8s Wayback
Aug 30, 2026, 8:01 AM UTC 100 845 ms 0 0 ms 9.7 kB 3/3 ±0 3,618 +46% 21.1s Wayback
Aug 21, 2026, 6:49 AM UTC 100 849 ms 0 0 ms 9.7 kB 3/3 ±0 2,488 0% 23.2s Wayback

Embed this score

Use this web component to show sixtysix.frontendweekly.tokyo'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://sixtysix.frontendweekly.tokyo/"></speedlify2-score>