What powers 
sinanengroup.co.jp?
Last seen Sep 2026 · 30 technologies across 19 categories
Advertising
Analytics
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Load balancers
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Reverse proxies
Security
Tag managers
UI frameworks
Web servers
Webmail
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
- Aug 2026 llms.txt removed
AI Crawlers
No AI crawlers blocked
Audience
- 59% desktop
- 41% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #364,980 of all domains
76 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 7.6 MB · 142 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Sinanen Holdings
- Founded: 1934
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on OCN NTT Communications Corporation (122.17.138.205)
- DNS: vectant.ne.jp
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: DigiCert, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 746,155, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| note.sinanengroup.co.jp | 21 |
| sinanengroup.co.jp | 14 |
| www.sinanengroup.co.jp | 4 |
Full technology history →
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