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

shueisha.co.jp/saiyo

https://www.shueisha.co.jp/saiyo

37PERF 100A11Y 100BEST 100SEO ✓AXE ✓CWV

Ranks Overall #1,124 Astro Showcase #105

Data from Oct 2, 2026, 7:09 PM UTC old Measured once a month · 1 run since Oct 2, 2026

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

This URL redirects to https://www.shueisha.co.jp/saiyo/.

The same URL in a different form — a trailing slash — so both are treated as one site rather than two: one history, measured once. Lighthouse follows the redirect, so the numbers below describe the page actually served; the only cost is an extra hop on each run.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Astro Built with Astro
Ac Hosted by Accelia

Lighthouse Scores LAB Simulated

37
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics LAB FIELD

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-02 → 2026-09-29), origin-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 19.96 s poor — 19.96 s – 19.96 s 1.81 s good 86.6% 8.5% 4.9%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 133 ms good 90.7% 8.2% 1%
CLS CWV Cumulative Layout Shift 0.001 good — 0.001 – 0.001 0 good 94.6% 2.7% 2.7%
TBT Total Blocking Time 797 ms poor — 797 ms – 797 ms n/a —
FCP First Contentful Paint 9.96 s poor — 9.96 s – 9.96 s 1.20 s good 88.8% 7.1% 4.1%
Speed Index 10.89 s poor — 10.89 s – 10.89 s n/a —
TTFB Time to First Byte 763 ms good — 763 ms – 763 ms 593 ms good 83.2% 14.1% 2.7%

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 1.55 s
resource load duration 602 ms
time to first byte 315 ms
resource load delay 19 ms

LCP LAB Simulated vs LCP FIELD

Lab 19.96 s
Field p75 1.81 s

The lab LCP is 11× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 3.50 MB — 3.50 MB – 3.50 MB
Requests 121 — 121 – 121
Third-party Weight 1.47 MB — 1.47 MB – 1.47 MB
Third-party CPU 215 ms — 215 ms – 215 ms
Unused JS 297 kB — 297 kB – 297 kB
Unused CSS 114 kB — 114 kB – 114 kB

By resource type

Type Transfer Share Size Requests
image 48.5% 1.70 MB 61
font 21.5% 752 kB 35
script 21.5% 751 kB 13
stylesheet 6.8% 239 kB 5
document 1% 35.7 kB 1
other 0.6% 22.2 kB 4
Total 3.50 MB 121

Third parties 4 entities

Entity Transfer Size Main thread Simulated
Google Fonts font 772 kB 0 ms
Google Tag Manager script 655 kB 188 ms
nakanohito.jp 21.6 kB 6 ms
Google Analytics 20.9 kB 22 ms
Total 1.47 MB 215 ms

Page health

Metric Value Change / range Trend
Main Thread Work 3.92 s — 3.92 s – 3.92 s
Long Tasks 11 — 11 – 11
DOM Elements 1,781 — 1,781 – 1,781
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 — 0 – 0
A11y Failures 0 — 0 – 0
A11y Failing Nodes 0 — 0 – 0

Main thread work

Task Time Share Duration Simulated
other 33% 1.30 s
style layout 31% 1.23 s
script evaluation 22% 872 ms
paint composite render 5% 210 ms
script parse compile 5% 180 ms
parse HTML 2% 79 ms
garbage collection 1% 58 ms
Total 3.92 s

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 1928 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

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-09-26 1.80 s 133 ms 0 1.18 s 588 ms
2026-09-19 1.78 s 135 ms 0 1.15 s 577 ms
2026-09-12 1.74 s 136 ms 0 1.11 s 560 ms
2026-09-05 1.70 s 136 ms 0 1.07 s 541 ms
2026-08-29 1.67 s 135 ms 0 1.04 s 528 ms
2026-08-22 1.62 s 134 ms 0 990 ms 508 ms
2026-08-15 1.59 s 134 ms 0 962 ms 499 ms
2026-08-08 1.56 s 136 ms 0 945 ms 497 ms
2026-08-01 1.58 s 137 ms 0.010 950 ms 504 ms
2026-07-25 1.62 s 136 ms 0.010 971 ms 508 ms
2026-07-18 1.64 s 136 ms 0.010 980 ms 516 ms
2026-07-11 1.65 s 135 ms 0 992 ms 522 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 2, 2026, 7:09 PM UTC 37 19.96 s 0.001 797 ms 3.50 MB 3/3 ±1 2,319 -7% 45.9s Wayback