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

frontendweekly.tokyo

https://frontendweekly.tokyo/

100 100 100 100 ✓AXE –CWV

Ranks Overall #159 Built Awesome #132

Data from Sep 5, 2026, 12:24 PM UTC old Measured once a week · 3 runs since Aug 20, 2026

Test elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis

Stack

Eleventy Built with Eleventy
Netlify Hosted by Netlify

Lighthouse Scores

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

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 3.00 s.

  1. 375 ms
  2. 750 ms
  3. 1.13 s
  4. 1.50 s
  5. 1.88 s
  6. 2.25 s
  7. 2.63 s
  8. 3.00 s

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.

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 854 ms 852 ms ↑ +2 ms (+0.2%) 816 ms 854 ms
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 854 ms 852 ms ↑ +2 ms (+0.2%) 816 ms 854 ms
Speed Index 854 ms 852 ms ↑ +2 ms (+0.2%) 816 ms 854 ms
TTFB Time to First Byte 610 ms 629 ms ↓ -19 ms (-3%) 604 ms 629 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 64 ms
time to first byte 9 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 7.7 kB 9.9 kB ↓ -2.2 kB (-22.7%) significant 7.7 kB 9.9 kB
Requests 2 2 → no change 2 2
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

  • document 100% 7.7 kB · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 233 ms 195 ms ↑ +38 ms (+19.7%) significant 188 ms 233 ms
Long Tasks 1 1 → no change 1 1
DOM Elements 131 131 → no change 131 131
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 0 → no change 0 0
A11y Failures 0 0 → no change 0 0
A11y Failing Nodes 0 0 → no change 0 0

Main thread work

style layout 141 ms
other 65 ms
script evaluation 11 ms
parse HTML 8 ms
paint composite render 7 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 226 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
Sep 5, 2026, 12:24 PM UTC 100 854 ms 0 0 ms 7.7 kB 3/3 ±0 2,253 -9% 21.3s
Aug 29, 2026, 12:21 PM UTC 100 852 ms 0 0 ms 9.9 kB 3/3 ±0 2,291 -8% 21.2s
Aug 20, 2026, 10:35 PM UTC 100 816 ms 0 0 ms 9.8 kB 3/3 ±7 2,392 -4% 22.8s

Embed this score

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