What powers code4biz.jp?
Last seen Jun 2026 · 28 technologies across 17 categories
Analytics
CDN
Cloudflare
since Nov 2023
jsDelivr
since Nov 2023
Customer data platform
Rudderstack
since Jul 2024
Databases
Firebase
since Aug 2022
Ecommerce
Kajabi
since Nov 2023
Mailgun
since Jul 2024
Font scripts
Google Font API
since Aug 2022
IaaS
Google Cloud
since Aug 2022
JavaScript frameworks
JavaScript libraries
LMS
Teachable
since Nov 2023
Miscellaneous
Open Graph
since Sep 2022
Popper
since Nov 2023
Page builders
STUDIO
since Aug 2022
Programming languages
Security
Cloudflare Bot Management
since Nov 2023
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Aug 2022
Web frameworks
Ruby on Rails
since Nov 2023
Audience
- 100% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.49 / 10 · ranked #6,604,993 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Subdomains
| Host | Techs |
|---|---|
| school.code4biz.jp | 20 |
| code4biz.jp | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Wistia Apr 2026