What powers derksen.app?
Last seen Sep 2026 · 6 technologies across 6 categories
Analytics
Google Analytics
since Sep 2026
Font scripts
Google Font API
since Sep 2026
Miscellaneous
Open Graph
since Sep 2026
Programming languages
Dart
since Sep 2026
Security
HSTS
since Sep 2026
Web server extensions
Shelf
since Sep 2026
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Infrastructure
- Hosted on IONOS (217.154.206.63)
- DNS: TransIP
- Email: derksen.app
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted