What powers 
businessmail.or.jp?
Last seen Sep 2026 · 28 technologies across 18 categories
Advertising
Analytics
Authentication
Caching
CDN
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Maps
Miscellaneous
Programming languages
Security
Tag managers
Web servers
Webmail
Widgets
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 found
- ai.txt not found
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 80% desktop
- 20% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.76 / 10 · ranked #131,985 of all domains
132 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 3.9 MB · 83 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Xserver (85.131.222.9)
- DNS: Sakura Internet
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 8,192,540
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Amazon CloudFront Aug 2026
- dropped Amazon Web Services Aug 2026
- detected Sakura Internet Jul 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025