What powers koov.io?
Last seen Jun 2026 · 25 technologies across 18 categories
Analytics
Google Analytics
since Aug 2018
CDN
Amazon CloudFront
since Apr 2022
Cloudflare
since Oct 2021
Amazon SES
since Aug 2022
Issue trackers
JavaScript frameworks
JavaScript libraries
Maps
Google Maps
since Oct 2021
Miscellaneous
Open Graph
since Sep 2022
Webpack
since Aug 2018
PaaS
Amazon Web Services
since Apr 2022
Payment processors
Performance
Turbolinks
since Nov 2021
Programming languages
Ruby
since Aug 2018
Security
Cloudflare Bot Management
since Nov 2021
HSTS
since Sep 2022
Video players
YouTube
since Oct 2021
Web frameworks
Ruby on Rails
since Aug 2018
Web servers
Nginx
since Aug 2018
Webmail
Google Workspace
since Aug 2022
Widgets
Wheelio
since Sep 2021
Audience
- 94% desktop
- 6% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.11 / 10 · ranked #500,899 of all domains
89 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 34.3 MB · 88 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.koov.io | 19 |
| challenge.koov.io | 13 |