What powers hudson.co.jp?
Last seen Sep 2026 · 3 technologies across 3 categories
Security
Imperva
since Sep 2023
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.28 / 10 · ranked #218,197 of all domains
156 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- CDN: Incapsula
- Weight: 0.0 MB · 6 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Hudson Soft
- Founded: 1973
- Sector: video game industry
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on IIJ Internet Initiative Japan Inc. (133.221.26.1)
- DNS: Akamai Edge DNS
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- Common Crawl link graph: rank 592,109, 9 hosts
DNS records as swept Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| i-call.hudson.co.jp | 3 |
| e-call.hudson.co.jp | 1 |