What powers 1book.co.jp?
Last seen Jun 2026 · 5 technologies across 5 categories
Analytics
Google Analytics
since Jan 2019
Miscellaneous
RSS
since Dec 2022
Programming languages
Security
HSTS
since Jun 2026
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 53% desktop
- 47% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.39 / 10 · ranked #1,023,011 of all domains
36 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.4 MB · 44 requests
Homepage as crawled by the HTTP Archive, Jul 2026.