What powers c-tool.org?
Last seen Jun 2026 · 12 technologies across 11 categories
CMS
Databases
MySQL
since Apr 2019
Font scripts
Google Font API
since Jul 2020
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Performance
Priority Hints
since May 2024
Programming languages
PHP
since Apr 2019
UI frameworks
Video players
YouTube
since Jul 2020
Web servers
Nginx
since Jul 2020
WordPress themes
Colorlib Sparkling
since May 2024
Audience
- 85% desktop
- 15% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.24 / 10 · ranked #70,247,976 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.5 MB · 51 requests
- WordPress theme: sparkling_v2 · all themes
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Adobe Audience Manager May 2026
- dropped Snowplow Analytics May 2026
- dropped Microsoft ASP.NET Apr 2026
- dropped GeneratePress Nov 2025
- dropped Google Analytics Oct 2025
- detected Microsoft ASP.NET Oct 2025
- detected GeneratePress Sep 2025