What powers extra.co.jp?
Last seen Jun 2026 · 15 technologies across 11 categories
Analytics
Google Analytics
since Jun 2025
CMS
WordPress
since Jun 2025
Databases
MySQL
since Jun 2025
Font scripts
Google Font API
since Jun 2025
JavaScript libraries
Miscellaneous
Open Graph
since Jul 2025
Performance
Priority Hints
since Jun 2025
Programming languages
PHP
since Sep 2020
Security
reCAPTCHA
since Jun 2025
Web servers
Nginx
since Dec 2022
WordPress plugins
Audience
- 75% desktop
- 25% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.96 / 10 · ranked #602,475 of all domains
45 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.0 MB · 71 requests
- WordPress theme: extra · all themes
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.