What powers kumonoue-lib.jp?
Last seen Aug 2026 · 7 technologies across 7 categories
CMS
JavaScript libraries
Operating systems
Programming languages
UI frameworks
Web frameworks
Web servers
AI Crawlers
Blocks 3 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- ClaudeBot Blocked
- GPTBot Blocked
Search and AI assistants
- Amazonbot Allowed
- Applebot Allowed
User-request fetchers
- ChatGPT-User Blocked
The other 28 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
3 of 33 AI crawlers blocked
Audience
- 79% phone
- 21% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.71 / 10 · ranked #760,374 of all domains
46 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese (Japan)
- Weight: 18.2 MB · 71 requests
- Structured data: JSON-LD, Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 雲の上の図書館
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on ODN SoftBank Corp. (210.237.128.63)
- DNS: Onamae.com
- Email: Sakura Internet
- Email security: SPF (hard fail), no DMARC record
- SSL: Cybertrust Japan, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 1,246,759
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted