What powers hetlyceumrotterdam.nl?
Last seen Jun 2026 · 16 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
CDN
jQuery CDN
since Feb 2022
CMS
Umbraco
since Nov 2022
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
Open Graph
since Sep 2022
Popper
since Apr 2022
Security
reCAPTCHA
since Nov 2021
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Web frameworks
Microsoft ASP.NET
since Oct 2021
Webmail
Microsoft 365
since Aug 2022
Widgets
Elfsight
since Mar 2024
Audience
- 66% phone
- 34% desktop
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.52 / 10 · ranked #6,354,142 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch
- Weight: 8.1 MB · 70 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Cloudflare Oct 2025
- dropped Cloudflare Bot Management Oct 2025
- detected Cloudflare Aug 2025
- detected Cloudflare Bot Management Aug 2025