What powers ribiyo.ac.jp?
Last seen Oct 2026 · 14 technologies across 12 categories
CMS
Databases
MySQL
since Sep 2020
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Apr 2025
Performance
Priority Hints
since Apr 2025
Programming languages
UI frameworks
Video players
YouTube
since Sep 2020
Web servers
Nginx
since Sep 2020
WordPress themes
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
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.73 / 10 · ranked #4,796,427 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 8.2 MB · 47 requests
- WordPress theme: lightning · all themes
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (219.94.163.235)
- DNS: Sakura Internet
- Email: ribiyo.ac.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 37,172,070
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted