What powers grotekerkalkmaar.nl?
Last seen Jun 2026 · 14 technologies across 11 categories
Analytics
Google Analytics
since Sep 2025
Microsoft Clarity
since Sep 2025
CDN
Cloudflare
since May 2026
jsDelivr
since Sep 2025
CMS
Umbraco
since Sep 2025
Ecommerce
Cart Functionality
since Sep 2025
JavaScript frameworks
Vue.js
since Sep 2025
JavaScript libraries
Swiper
since Sep 2025
Miscellaneous
PWA
since Sep 2025
Performance
Priority Hints
since Oct 2025
Security
Cloudflare Bot Management
since May 2026
HSTS
since Sep 2025
Tag managers
Google Tag Manager
since Sep 2025
Web frameworks
Microsoft ASP.NET
since Sep 2025
Audience
- 75% phone
- 25% desktop
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.20 / 10 · ranked #1,269,280 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 5.8 MB · 51 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped IIS Jun 2026
- dropped Windows Server Jun 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Hotjar Nov 2025
- detected Priority Hints Oct 2025