What powers 
matsunaga-seika.co.jp?
Last seen Sep 2026 · 8 technologies across 7 categories
Analytics
Caching
JavaScript libraries
Miscellaneous
Programming languages
Security
Web servers
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 Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 82% phone
- 17% desktop
- 1% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.93 / 10 · ranked #629,171 of all domains
55 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Fastly
- Weight: 15.7 MB · 66 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Matsunaga Seika
- Founded: 1938
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on ARTERIA Networks (133.149.219.124)
- DNS: ktk-sol.co.jp
- Email: ktk-sol.co.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: JPRS, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 6,998,837, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.matsunaga-seika.co.jp | 7 |
| matsunaga-seika.co.jp | 6 |
Full technology history →
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Recent changes
- detected Varnish Jan 2026