What powers 
prometech.co.jp?
Last seen Oct 2026 · 59 technologies across 22 categories
Analytics
CDN
CMS
CRM
Databases
Font scripts
Hosting
IaaS
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
Tag managers
Video players
Web servers
Webmail
WordPress plugins
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 Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 87% desktop
- 13% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.52 / 10 · ranked #399,003 of all domains
48 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 10.4 MB · 191 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- プロメテックグループ株式会社
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (112.78.125.116)
- DNS: Amazon Route 53
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 231,257, 6 hosts
- Verified with: Apple Business, Atlassian, Box, Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.prometech.co.jp | 28 |
| group.prometech.co.jp | 24 |
| prometech.co.jp | 24 |
| psc.prometech.co.jp | 21 |
| recruit.prometech.co.jp | 21 |
Full technology history →
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Recent changes
- detected Cloudflare Bot Management Oct 2026
- detected Linkedin Insight Tag Oct 2026
- detected Apple iCloud Mail May 2026