What powers grotiuscollege.nl?
Last seen Jun 2026 · 19 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Google Sign-in
since Feb 2023
CDN
Google Hosted Libraries
since Nov 2022
jsDelivr
since Nov 2022
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Operating systems
Windows Server
since Jan 2019
Programming languages
PHP
since Sep 2021
UI frameworks
Web frameworks
Microsoft ASP.NET
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
Nginx
since Apr 2023
Webmail
Google Workspace
since Sep 2022
Microsoft 365
since Aug 2022
Audience
- 64% phone
- 36% desktop
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.81 / 10 · ranked #1,962,289 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch
- Weight: 2.7 MB · 27 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.grotiuscollege.nl | 11 |
| rooster.grotiuscollege.nl | 9 |
| portaal.grotiuscollege.nl | 4 |