What powers coolfii.com?
Last seen Jun 2026 · 19 technologies across 10 categories
CDN
Font scripts
Font Awesome
since Apr 2020
Google Font API
since Apr 2020
JavaScript graphics
JavaScript libraries
OWL Carousel
since Apr 2020
Slick
since Sep 2022
Miscellaneous
Open Graph
since Sep 2022
Operating systems
Windows Server
since Apr 2020
UI frameworks
Video players
YouTube
since Aug 2025
Web frameworks
Microsoft ASP.NET
since Apr 2020
Web servers
Audience
- 85% desktop
- 15% phone
Taiwan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.39 / 10 · ranked #38,943,610 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Chinese
- Weight: 0.2 MB · 8 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| kc.coolfii.com | 10 |
| kingbrain.coolfii.com | 10 |
| apex.coolfii.com | 9 |
| learn.coolfii.com | 7 |
| teach.coolfii.com | 7 |
| ai.coolfii.com | 5 |
| szmc.coolfii.com | 5 |