What powers koubo.co.jp?
Last seen Jun 2026 · 39 technologies across 21 categories
Advertising
Google AdSense
since Mar 2023
Analytics
CDN
Google Hosted Libraries
since Aug 2024
CMS
WordPress
since Aug 2018
Databases
MySQL
since Aug 2018
Ecommerce
Welcart
since May 2021
Font scripts
Google Font API
since Mar 2021
Issue trackers
Sentry
since Mar 2023
JavaScript frameworks
JavaScript libraries
Swiper
since Mar 2023
Load balancers
Amazon ALB
since Aug 2021
Miscellaneous
PaaS
Amazon Web Services
since Aug 2021
Vercel
since Mar 2023
Payment processors
Performance
Priority Hints
since May 2023
Programming languages
Security
Tag managers
Google Tag Manager
since Sep 2018
UI frameworks
Tailwind CSS
since Mar 2023
Web servers
Apache HTTP Server
since Apr 2020
WordPress plugins
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 58% phone
- 42% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.33 / 10 · ranked #183,955 of all domains
121 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 1.8 MB · 93 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.koubo.co.jp | 23 |
| koubo.co.jp | 20 |
| school.koubo.co.jp | 16 |
Full technology history →
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Recent changes
- detected Facebook Pixel Nov 2025