What powers deruca.jp?
Last seen Sep 2026 · 4 technologies across 3 categories
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 94% phone
- 5% desktop
- 1% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.28 / 10 · ranked #1,154,576 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 0.7 MB · 84 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on RAKUTEN Rakuten Group, Inc. (202.72.56.132)
- DNS: rakuten.ad.jp
- Email: deruca.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: DigiCert, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 9,822,420, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| deruca.jp | 4 |
| in.deruca.jp | 4 |
| my.deruca.jp | 4 |