What powers classi.jp?
Last seen Jun 2026 · 61 technologies across 29 categories
Advertising
Analytics
Authentication
Caching
CDN
CMS
Databases
Documentation
Font scripts
Issue trackers
JavaScript frameworks
JavaScript graphics
JavaScript Libraries
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Reverse proxies
Security
SEO
Tag managers
UI frameworks
Video players
Web frameworks
Web servers
Webmail
Widgets
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| benesse | #92 | 1 |
| clasi-a | #83 | 0 |
| clasi login | #41 | 0 |
| clasi a | #96 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 64% desktop
- 36% phone
Japan
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.12 / 10 · ranked #102,106 of all domains
166 referring domains · OpenPageRank
Search traffic
1 est. monthly organic visits (US)
4 keywords in Google's top 30
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 4.0 MB · 51 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| classi.jp | 22 |
| status.classi.jp | 19 |
| corp.classi.jp | 17 |
| tech.classi.jp | 17 |
| support.classi.jp | 16 |
| absence.classi.jp | 15 |
| study.classi.jp | 15 |
| platform.classi.jp | 14 |
| portfolio.classi.jp | 13 |
| auth.classi.jp | 12 |
| karte.classi.jp | 12 |
| partner.classi.jp | 12 |
| setting.classi.jp | 12 |
| video.classi.jp | 12 |
| webtest.classi.jp | 12 |
| id.classi.jp | 10 |
| www.classi.jp | 8 |
| id-api.classi.jp | 5 |
Full technology history →
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Recent changes
- detected Apple iCloud Mail Jun 2026
- detected Twitter Emoji (Twemoji) Apr 2026