What powers first-s.jp?
Last seen Apr 2026 · 17 technologies across 13 categories
Analytics
Google Analytics
since Jan 2022
CMS
WordPress
since Jan 2022
Databases
MySQL
since Jan 2022
Font scripts
Google Font API
since Jan 2022
JavaScript libraries
Swiper
since Nov 2022
Miscellaneous
RSS
since Mar 2023
Page builders
WordPress Block Editor
since Jul 2025
Performance
Priority Hints
since Oct 2023
Programming languages
PHP
since Jan 2022
SEO
The SEO Framework
since Nov 2022
Web servers
Nginx
since Jan 2022
WordPress plugins
Polylang
since Nov 2022
WP Fastest Cache
since Jul 2025
WordPress themes
Lightning
since Nov 2022
Audience
- 89% desktop
- 11% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.06 / 10 · ranked #3,436,685 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.8 MB · 60 requests
- WordPress theme: lightning (child: lightning-child) · all themes
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Contact Form 7 Mar 2026