What powers cukuma.com?
Last seen Jun 2026 · 21 technologies across 10 categories
Analytics
Font scripts
Ionicons
since May 2019
JavaScript libraries
Maps
Google Maps
since May 2019
Miscellaneous
Open Graph
since Sep 2022
PWA
since Apr 2026
Performance
Turbolinks
since Nov 2021
Programming languages
Ruby
since May 2019
Security
HSTS
since Sep 2022
UI frameworks
Web frameworks
Ruby on Rails
since May 2019
Audience
- 100% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.87 / 10 · ranked #15,109,357 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 3.3 MB · 55 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped Amazon ALB Apr 2026
- dropped Amazon Web Services Apr 2026
- detected PWA Apr 2026
- dropped Zendesk Chat Apr 2026
- dropped Cowboy Aug 2025
- dropped Erlang Aug 2025
- dropped Heroku Aug 2025