What powers spbook.jp?
Last seen Sep 2026 · 3 technologies across 3 categories
Hosting panels
Plesk
since Jun 2024
Programming languages
Web servers
Apache HTTP Server
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 66% desktop
- 34% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.02 / 10 · ranked #1,556,800 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on WINTECH-COM Wingtechnology Communications, Inc. (202.174.49.131)
- DNS: comlink.ne.jp
- Email: sannichi-p.co.jp
- Email security: no SPF record, no DMARC record
- SSL: GlobalSign, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 10,475,270
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted