What powers rek.or.jp?
Last seen Jun 2026 · 10 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
CDN
cdnjs
since May 2026
Cloudflare
since May 2026
JavaScript frameworks
Riot
since May 2026
JavaScript libraries
Miscellaneous
Open Graph
since May 2026
Tag managers
Google Tag Manager
since Apr 2023
Video players
YouTube
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 71% phone
- 29% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.27 / 10 · ranked #1,170,728 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 9.9 MB · 111 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped CakePHP Jun 2026
- dropped DreamWeaver Jun 2026
- dropped FlexSlider Jun 2026
- dropped Font Awesome Jun 2026
- dropped Google Font API Jun 2026
- dropped PHP Jun 2026
- detected cdnjs May 2026
- detected Cloudflare May 2026
- detected Open Graph May 2026
- detected Riot May 2026
- detected Swiper May 2026