What powers alefs.co.jp?
Last seen Jun 2026 · 15 technologies across 11 categories
CDN
CMS
Databases
MySQL
since May 2019
Font scripts
Google Font API
since May 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Programming languages
PHP
since May 2019
Video players
YouTube
since Jul 2022
Web servers
Nginx
since May 2019
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.90 / 10 · ranked #14,645,042 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.6 MB · 67 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.alefs.co.jp | 15 |
| alefs.co.jp | 14 |