What powers 
virail.jp?
Last seen Sep 2026 · 24 technologies across 17 categories
Analytics
Authentication
CDN
CMS
Databases
Issue trackers
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Performance
Programming languages
Security
Static site generator
Tag managers
UI frameworks
Web servers
AI Crawlers
Blocks 2 of 33 AI crawlers we track by name in its robots.txt, restricts 2 more. Checked Oct 2026.
Training crawlers
- GPTBot Blocked
- ImagesiftBot Blocked
Search and AI assistants
- OAI-SearchBot Restricted
User-request fetchers
- ChatGPT-User Restricted
The other 29 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
- Aug 2026 llms.txt appeared
AI Crawlers
2 of 33 AI crawlers blocked
Standards: llms.txt
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.60 / 10 · ranked #816,949 of all domains
42 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 1.1 MB · 46 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.65.38, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 11,389,051, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.virail.jp | 15 |
| book.virail.jp | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Apache Tomcat Dec 2025
- detected Java Dec 2025
- detected MariaDB Dec 2025
- detected Skolengo Dec 2025
- detected Cloudflare Browser Insights Nov 2025