What powers 
testgroup.nl?
Last seen Aug 2026 · 17 technologies across 11 categories
Analytics
CDN
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Search engines
Security
Tag managers
UI frameworks
Web frameworks
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 65% phone
- 35% desktop
Netherlands
Belgium
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.07 / 10 · ranked #525,425 of all domains
67 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- CDN: Cloudflare
- Weight: 1.0 MB · 50 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.88.76, IPv6)
- DNS: Cloudflare DNS
- Email: STRATO
- Email security: SPF (neutral), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 9,358,572, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Algolia Jul 2026
- detected Alpine.js Jul 2026
- detected Cloudflare Jul 2026
- detected Cloudflare Browser Insights Jul 2026
- detected Google Analytics Jul 2026
- detected Google Tag Manager Jul 2026
- detected HSTS Jul 2026
- detected HTTP/3 Jul 2026
- detected Inertia.js Jul 2026
- detected Laravel Jul 2026
- detected Leadinfo Jul 2026
- detected Open Graph Jul 2026
- detected PHP Jul 2026
- detected PWA Jul 2026
- detected Swiper Jul 2026
- detected Tailwind CSS Jul 2026
- detected Webpack Jul 2026
- detected Cloudflare Browser Insights Nov 2025