What powers cho-textbook.jp?
Last seen Jun 2026 · 11 technologies across 8 categories
Authentication
Apple Sign-in
since Jun 2022
CDN
Amazon SES
since May 2023
Font scripts
Google Font API
since Jul 2021
JavaScript libraries
Miscellaneous
HTTP/3
since May 2023
PaaS
Amazon Web Services
since Jul 2021
Web servers
Audience
- 98% desktop
- 2% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.78 / 10 · ranked #2,026,345 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 0.7 MB · 18 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| p02.cloud.cho-textbook.jp | 8 |
| p01.cloud.cho-textbook.jp | 7 |
| www.cho-textbook.jp | 5 |
Full technology history →
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Recent changes
- dropped React Sep 2025