What powers challenge8.co.jp?
Last seen Jun 2026 · 28 technologies across 16 categories
Analytics
Google Analytics
since Feb 2026
CDN
Amazon S3
since May 2026
cdnjs
since Nov 2021
Cloudflare
since Jul 2022
Google Hosted Libraries
since Jul 2022
jsDelivr
since Feb 2026
CMS
WordPress
since Sep 2021
Databases
MySQL
since Sep 2021
Font scripts
Font Awesome
since Sep 2021
Google Font API
since Sep 2021
Hosting
Xserver
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Jun 2023
PaaS
Amazon Web Services
since May 2026
Page builders
WordPress Block Editor
since Feb 2026
Programming languages
PHP
since Sep 2021
Security
reCAPTCHA
since Feb 2026
Tag managers
Google Tag Manager
since Feb 2026
Video players
YouTube
since Feb 2026
Web servers
Nginx
since Sep 2021
WordPress plugins
Audience
- 65% phone
- 35% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.61 / 10 · ranked #2,308,258 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 1.9 MB · 72 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| buppan-navi.challenge8.co.jp | 23 |
| buppan.challenge8.co.jp | 15 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon S3 May 2026
- detected Amazon Web Services May 2026
- detected Facebook Pixel Apr 2026