What powers four-nine.jp?
Last seen Jun 2026 · 19 technologies across 13 categories
Analytics
Google Analytics
since May 2022
CDN
cdnjs
since Jul 2023
Cloudflare
since Jul 2023
Google Hosted Libraries
since May 2022
Unpkg
since Jul 2023
CMS
WordPress
since May 2022
Databases
MySQL
since May 2022
Font scripts
Hosting
Xserver
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Jul 2023
Performance
Priority Hints
since Dec 2025
Programming languages
PHP
since May 2022
Web servers
Nginx
since May 2022
Webmail
Google Workspace
since Dec 2022
WordPress plugins
Audience
- 52% desktop
- 48% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.36 / 10 · ranked #7,918,639 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 3.3 MB · 39 requests
- WordPress theme: stw · all themes
- 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
- detected Priority Hints Dec 2025