What powers tva.ac.jp?
Last seen Oct 2026 · 18 technologies across 9 categories
Advertising
Analytics
CDN
Font scripts
JavaScript libraries
Maps
Miscellaneous
PaaS
Tag managers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 62% phone
- 36% desktop
- 1% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.32 / 10 · ranked #432,021 of all domains
70 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 12.9 MB · 142 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Xserver (183.90.235.2)
- DNS: cpi.ad.jp
- Email: secure.ne.jp
- Email security: SPF (hard fail), no DMARC record
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 805,416, 6 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Polyfill Jul 2026
- dropped YouTube May 2026
- detected Google Ads Feb 2026
- detected Google Ads Conversion Tracking Feb 2026
- detected TikTok Pixel Jan 2026