What powers cognitiohk.edu.hk?
Last seen Jun 2026 · 19 technologies across 12 categories
CDN
cdnjs
since Jul 2023
Cloudflare
since Jan 2023
CMS
eClass
since Aug 2023
Editors
DreamWeaver
since Aug 2023
JavaScript libraries
Miscellaneous
Popper
since Aug 2023
Operating systems
CentOS
since May 2021
Programming languages
PHP
since May 2021
Security
HSTS
since Apr 2026
UI frameworks
Web server extensions
Web servers
Nginx
since Apr 2026
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
Audience
- 78% phone
- 22% desktop
Hong Kong SAR China
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.80 / 10 · ranked #4,349,115 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 52.4 MB · 67 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| cognitiohk.edu.hk | 13 |
| www.cognitiohk.edu.hk | 12 |
| eclass.cognitiohk.edu.hk | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected HSTS Apr 2026
- detected Nginx Apr 2026
- dropped jQuery CDN Mar 2026
- dropped Unpkg Mar 2026