What powers 
seibou.ac.jp?
Last seen Oct 2026 · 11 technologies across 10 categories
Analytics
CDN
CMS
Databases
Hosting
JavaScript libraries
Miscellaneous
Programming languages
Tag managers
Web servers
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 87% phone
- 10% desktop
- 3% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.64 / 10 · ranked #796,228 of all domains
41 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- Weight: 12.9 MB · 177 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Xserver (162.43.105.29)
- DNS: xbiz.ne.jp
- Email: seibou.ac.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 7,925,593, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Animate.css Oct 2026
- dropped Bootstrap Oct 2026
- dropped Cart Functionality Oct 2026
- dropped cdnjs Oct 2026
- dropped Cloudflare Oct 2026
- dropped Contact Form 7 Oct 2026
- dropped core-js Oct 2026
- dropped Lightbox Oct 2026
- dropped Popper Oct 2026
- dropped Really Simple SSL & Security Oct 2026
- dropped reCAPTCHA Oct 2026
- dropped WP-PageNavi Oct 2026
- detected Google Analytics Sep 2026
- detected Google Tag Manager Sep 2026
- detected Open Graph Sep 2026
- detected Slick Sep 2026
- detected Cart Functionality Jul 2026
- dropped Cart Functionality Mar 2026