What powers ecats-library.jp?
Last seen Aug 2026 · 9 technologies across 7 categories
JavaScript libraries
Miscellaneous
Open Graph
since Mar 2024
PaaS
Amazon Web Services
since Mar 2024
Programming languages
Python
since Mar 2024
UI frameworks
Web frameworks
Django
since Mar 2024
Web servers
Apache HTTP Server
since Mar 2024
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 76% desktop
- 24% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.91 / 10 · ranked #643,035 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.5 MB · 21 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- DNS: Amazon Route 53
- Email: no MX record returned
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 1,188,581, 6 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| hosei.ecats-library.jp | 8 |
| opac-tais.ecats-library.jp | 8 |
| opac-wayo.ecats-library.jp | 8 |