What powers rubyjacks.jp?
Last seen Jun 2026 · 15 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
CDN
Google Cloud CDN
since May 2025
Databases
Firebase
since May 2025
Font scripts
Google Font API
since Sep 2020
Hosting
Xserver
since Aug 2022
IaaS
Google Cloud
since May 2025
JavaScript frameworks
Miscellaneous
HTTP/3
since May 2025
Open Graph
since Sep 2022
Page builders
STUDIO
since May 2025
Programming languages
Node.js
since May 2025
Tag managers
Google Tag Manager
since Jul 2021
Webmail
Google Workspace
since Aug 2022
Audience
- 61% desktop
- 39% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.22 / 10 · ranked #1,241,896 of all domains
25 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 22.8 MB · 34 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped Priority Hints May 2026
- dropped core-js Apr 2026
- dropped Google Cloud Trace Apr 2026
- dropped Google Maps Apr 2026
- detected Priority Hints Mar 2026
- detected core-js Feb 2026
- detected Google Cloud Trace Feb 2026
- detected Google Maps Feb 2026