What powers zermelo.academy?
Last seen Jun 2026 · 11 technologies across 10 categories
Font scripts
Google Font API
since Feb 2025
JavaScript frameworks
Vue.js
since Feb 2025
JavaScript libraries
PaaS
Amazon Web Services
since Jan 2023
Programming languages
Java
since Jan 2023
Rich text editors
CKEditor
since Jan 2023
Security
HSTS
since Jan 2023
UI frameworks
Element UI
since Feb 2025
Tailwind CSS
since Feb 2025
Video players
VideoJS
since Jan 2023
Web servers
Apache APISIX
since Feb 2026
Audience
- 60% desktop
- 40% phone
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.25 / 10 · ranked #69,472,902 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch
- Weight: 11.4 MB · 79 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Amazon ALB Mar 2026
- dropped Nginx Mar 2026
- detected Apache APISIX Feb 2026
- detected VideoJS Aug 2025