What powers 
kosyunyu.com?
Last seen Aug 2026 · 13 technologies across 11 categories
Advertising
Analytics
CDN
JavaScript Frameworks
JavaScript libraries
Operating Systems
Programming languages
Security
Tag Managers
Web Servers
Widgets
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
- 60% phone
- 40% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.71 / 10 · ranked #757,061 of all domains
71 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.9 MB · 120 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CWJ-NET Cyber Wave Japan Co., Ltd. (61.114.231.243)
- DNS: gna.ne.jp
- Email: kosyunyu.com
- Email security: no SPF record, no DMARC record
- SSL: Nijimo, Inc., RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 2,728,107, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Mar 2026
- dropped Cloudflare Bot Management Mar 2026
- detected Cloudflare Jan 2026
- detected Cloudflare Bot Management Jan 2026
- dropped YouTube Jan 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025