What powers 
tekenradar.nl?
Last seen Sep 2026 · 16 technologies across 11 categories
Analytics
Comment systems
Development
JavaScript frameworks
Maps
Miscellaneous
Performance
Programming languages
Security
UI frameworks
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 86% phone
- 11% desktop
- 4% tablet
Netherlands
Belgium
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.12 / 10 · ranked #102,164 of all domains
214 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch
- Weight: 1.0 MB · 37 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Jul 2011 (15 years) via Registrar.eu
- Hosted on SURFNET-NL SURFnet, The Netherlands (131.224.250.58, IPv6)
- DNS: ssc-campus.nl
- Email: rivm.nl
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: HARICA, ECDSA P256, expires Feb 2027
- Common Crawl link graph: rank 2,048,421, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Apache HTTP Server May 2026
- dropped core-js May 2026
- dropped Font Awesome May 2026
- dropped Matomo Analytics May 2026
- dropped PWA May 2026
- detected Next.js Apr 2026
- detected Next.js App Router Apr 2026
- detected Nginx Apr 2026
- detected Node.js Apr 2026
- detected Piwik PRO Core Apr 2026
- detected Priority Hints Apr 2026
- detected Radix UI Apr 2026
- detected shadcn/ui Apr 2026
- detected Tailwind CSS Apr 2026
- detected Turbopack Apr 2026
- detected Webpack Apr 2026