What powers class-plus.jp?
Last seen Jun 2026 · 34 technologies across 17 categories
Analytics
Google Analytics
since Jan 2019
Microsoft Clarity
since Oct 2024
CDN
cdnjs
since Feb 2024
Cloudflare
since Feb 2024
Google Cloud CDN
since Aug 2023
jQuery CDN
since Sep 2023
Databases
Firebase
since Mar 2023
Ecommerce
Cart Functionality
since Feb 2024
Amazon SES
since Feb 2024
Font scripts
Google Font API
since Jan 2019
IaaS
Google Cloud
since Mar 2023
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since Feb 2024
Page builders
STUDIO
since Mar 2023
Performance
Google Cloud Trace
since Jun 2026
Programming languages
Tag managers
Google Tag Manager
since Mar 2023
Video players
YouTube
since Sep 2024
Web frameworks
Audience
- 70% phone
- 30% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.84 / 10 · ranked #1,895,943 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 1.5 MB · 56 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| maru-arai.class-plus.jp | 25 |
| memo.class-plus.jp | 13 |
| preciouslife.class-plus.jp | 13 |
| faq.class-plus.jp | 3 |
| www.class-plus.jp | 3 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Cloud Trace Jun 2026
- dropped Priority Hints May 2026
- detected Priority Hints Feb 2026