What powers bookscan.co.jp?
Last seen Aug 2026 · 36 technologies across 14 categories
Analytics
CDN
Amazon CloudFront
since Aug 2024
Amazon S3
since Aug 2024
cdnjs
since Aug 2024
Cloudflare
since Jun 2020
jsDelivr
since Aug 2024
Unpkg
since Aug 2024
Font scripts
Google Font API
since Aug 2024
Issue trackers
UserVoice
since Jun 2020
JavaScript Frameworks
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since Aug 2024
Programming languages
Security
Cloudflare Bot Management
since Aug 2022
HSTS
since Nov 2022
Tag managers
Google Tag Manager
since Nov 2020
UI frameworks
Web frameworks
Ruby on Rails
since Jun 2020
Web Servers
Apache HTTP Server
since May 2017
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 81% desktop
- 19% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.72 / 10 · ranked #301,174 of all domains
92 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.2 MB · 90 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| webbook.bookscan.co.jp | 15 |
| uservoice.bookscan.co.jp | 11 |
| www.bookscan.co.jp | 10 |
| system.bookscan.co.jp | 9 |