What powers summa-onderwijs.nl?
Last seen Jun 2026 · 34 technologies across 19 categories
Advertising
Google AdSense
since Jun 2026
Analytics
Google Analytics
since Oct 2025
Hotjar
since Feb 2026
Linkedin Insight Tag
since Oct 2025
Microsoft Clarity
since Oct 2025
Caching
Varnish
since Oct 2025
W3 Total Cache
since Oct 2025
CDN
Cloudflare
since Oct 2025
CMS
WordPress
since Oct 2025
Databases
MySQL
since Oct 2025
JavaScript libraries
Live chat
WhatsApp Business Chat
since Oct 2025
Maps
Google Maps
since Oct 2025
Miscellaneous
Open Graph
since Oct 2025
PWA
since Feb 2026
Page builders
WordPress Block Editor
since Oct 2025
Programming languages
PHP
since Oct 2025
Security
Cloudflare Bot Management
since Oct 2025
HSTS
since Oct 2025
SEO
Tag managers
Google Tag Manager
since Oct 2025
UI frameworks
Web servers
Apache HTTP Server
since Feb 2026
Nginx
since Oct 2025
Webmail
Microsoft 365
since Oct 2025
WordPress plugins
Audience
- 55% phone
- 45% desktop
Netherlands
Belgium
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.71 / 10 · ranked #759,262 of all domains
34 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 125 ms |
| CLS | 0.15 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 4.1 MB · 126 requests
- WordPress theme: summa-onderwijs · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| summa-onderwijs.nl | 24 |
| studiekeuze.summa-onderwijs.nl | 17 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Google AdSense Jun 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Apr 2026
- dropped Cloudflare Bot Management Apr 2026
- detected Microsoft Clarity Mar 2026
- dropped Microsoft Clarity Feb 2026
- dropped TikTok Pixel Feb 2026