What powers kobetsuba.jp?
Last seen Jun 2026 · 24 technologies across 18 categories
Analytics
Google Analytics
since Jan 2019
CDN
Amazon CloudFront
since Jan 2026
cdnjs
since Nov 2021
Cloudflare
since May 2022
Google Hosted Libraries
since Feb 2022
CMS
WordPress
since Jul 2021
Databases
MySQL
since Jul 2021
Amazon SES
since Feb 2026
Font scripts
Google Font API
since Jul 2019
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PaaS
Amazon Web Services
since Jan 2019
Page builders
WordPress Block Editor
since Jul 2024
Programming languages
PHP
since Jan 2019
Tag managers
Google Tag Manager
since Jan 2019
Video players
YouTube
since Jul 2021
Web server extensions
Web servers
Webmail
Google Workspace
since Aug 2022
WordPress plugins
TablePress
since Feb 2022
WordPress Super Cache
since Sep 2024
Audience
- 58% desktop
- 27% phone
- 15% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.26 / 10 · ranked #2,965,948 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 6.9 MB · 148 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon SES Feb 2026
- dropped HSTS Feb 2026
- detected Amazon CloudFront Jan 2026
- detected Google Tag Manager Jan 2026