What powers sou-sei.com?
Last seen Jun 2026 · 24 technologies across 15 categories
Analytics
Google Analytics
since Mar 2019
Microsoft Clarity
since Oct 2024
CDN
cdnjs
since Apr 2022
Cloudflare
since May 2022
CMS
Databases
MySQL
since Mar 2019
Font scripts
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Popper
since Apr 2022
Performance
Priority Hints
since Sep 2023
Programming languages
Tag managers
Google Tag Manager
since Jul 2021
UI frameworks
Video players
YouTube
since Mar 2019
Web servers
Nginx
since Mar 2019
Webmail
Google Workspace
since Aug 2022
WordPress plugins
Smash Balloon Instagram Feed
since Feb 2022
Audience
- 52% desktop
- 48% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.17 / 10 · ranked #10,247,568 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 8.8 MB · 215 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped jQuery UI Feb 2026
- dropped Popup Maker Feb 2026
- detected jQuery UI Aug 2025
- detected Popup Maker Aug 2025