What powers gurumail.jp?
Last seen Jun 2026 · 4 technologies across 4 categories
CDN
Google Hosted Libraries
since Feb 2022
JavaScript libraries
Operating systems
Scientific Linux
since Apr 2019
Web servers
Audience
- 100% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Core Web Vitals
| LCP | 1.8 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 0.1 MB · 9 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| gurumail.jp | 4 |
| www.gurumail.jp | 4 |