What powers class-cloud.jp?
Last seen Jun 2026 · 11 technologies across 7 categories
JavaScript frameworks
Miscellaneous
PaaS
Amazon Web Services
since Sep 2024
Vercel
since Sep 2024
Programming languages
Node.js
since Sep 2024
Security
HSTS
since Sep 2024
UI frameworks
Chakra UI
since Sep 2024
Webmail
Google Workspace
since Sep 2024
Audience
- 83% desktop
- 17% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.54 / 10 · ranked #6,198,945 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Vercel
- Weight: 1.2 MB · 21 requests
Homepage as crawled by the HTTP Archive, Jul 2026.