What powers jsfs.jp?
Last seen Jun 2026 · 17 technologies across 13 categories
Analytics
Google Analytics
since May 2024
CMS
Databases
MySQL
since Jul 2019
Font scripts
Twitter Emoji (Twemoji)
since Jul 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Jul 2024
Programming languages
PHP
since Jul 2019
UI frameworks
Web servers
Nginx
since Jul 2019
WordPress plugins
TablePress
since Jun 2023
WordPress themes
Audience
- 76% desktop
- 24% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.06 / 10 · ranked #530,516 of all domains
49 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.1 MB · 56 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 →
Report an incorrect detection
Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025