What powers kaichi.ed.jp?
Last seen Jun 2026 · 16 technologies across 9 categories
Analytics
Google Analytics
since Sep 2019
CMS
a-blog cms
since Jan 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Splide
since Jun 2024
Miscellaneous
Programming languages
PHP
since Jan 2019
Security
HSTS
since Sep 2022
Video players
YouTube
since Nov 2023
Web servers
Nginx
since Jan 2019
Audience
- 87% phone
- 13% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.09 / 10 · ranked #1,444,082 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.1 MB · 94 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.kaichi.ed.jp | 12 |
| lib.kaichi.ed.jp | 8 |