What powers osk-ohtani.ed.jp?
Last seen Sep 2026 · 17 technologies across 10 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Web servers
Webmail
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 83% phone
- 17% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.51 / 10 · ranked #886,136 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 8.5 MB · 112 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Ohtani Junior and Senior High School (Osaka)
- Founded: 1909
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on AICS Otsuka Corp. (157.205.16.52)
- DNS: otsuka-office365.jp
- Email: Microsoft 365
- Email security: no SPF record, DMARC monitor only
- SSL: Cybertrust Japan, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 9,889,881, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025