What powers 
seikitokyu.co.jp?
Last seen Sep 2026 · 14 technologies across 11 categories
Analytics
CDN
CMS
Databases
JavaScript libraries
Miscellaneous
Programming languages
Security
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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
AI Crawlers
No AI crawlers blocked
Audience
- 51% desktop
- 49% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.80 / 10 · ranked #717,144 of all domains
42 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 10.5 MB · 82 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 世紀東急工業株式会社 (Seiki Tokyu Kogyo Co., Ltd. (Japan) on Wikidata)
- Founded: 1950
- Country: Japan
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on ITSCOM its communications Inc. (210.253.216.154)
- DNS: forbiz.jp
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record
- SSL: SECOM Trust Systems, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,205,697, 2 hosts
- Verified with: Amazon SES, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted