What powers rad.ac.jp?
Last seen Aug 2026 · 15 technologies across 11 categories
Analytics
CDN
CMS
Databases
JavaScript libraries
Maps
Miscellaneous
Programming languages
SEO
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 84% phone
- 16% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.20 / 10 · ranked #1,270,537 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 2100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 14.4 MB · 185 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- ルネサンス デザイン・美容専門学校
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on NTT-DATA-2914 (111.68.239.223)
- DNS: rad.ac.jp
- Email: rad.ac.jp
- Email security: SPF (hard fail), DMARC monitor only
- SSL: DigiCert, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 9,150,385
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
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Recent changes
- dropped SnapWidget Aug 2026
- detected Microsoft Clarity Feb 2026