What powers hst-cable.co.jp?
Last seen Aug 2026 · 20 technologies across 10 categories
Advertising
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Programming languages
Tag managers
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 95% phone
- 5% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.82 / 10 · ranked #705,766 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 12.1 MB · 88 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Sumiden HST Cable
- Founded: 2002
- Country: Japan
From Wikidata (CC0).
Infrastructure
- DNS: sei.co.jp
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 262,335
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
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Recent changes
- detected Microsoft Clarity May 2026
- detected core-js Apr 2026
- detected Facebook Pixel Apr 2026
- detected Microsoft Advertising Apr 2026