What powers zell-heizung.de?
Last seen Sep 2026 · 14 technologies across 8 categories
Analytics
Cloudflare Browser Insights
since Sep 2026
Google Analytics
since Jan 2026
JavaScript libraries
AOS
since Oct 2024
Miscellaneous
Open Graph
since Dec 2023
Programming languages
GraphQL
since Dec 2023
TypeScript
since Dec 2023
Security
HSTS
since Dec 2023
UI frameworks
Bootstrap
since Dec 2023
Video players
YouTube
since Dec 2023
Web servers
Nginx
since Dec 2023
AI Crawlers
Blocks 3 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Bytespider Blocked
- GPTBot Blocked
- meta-externalagent Blocked
- ClaudeBot Allowed
The other 29 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
3 of 33 AI crawlers blocked
Standards: llms.txt
Open Page Rank
0.92 / 10 · ranked #14,182,135 of all domains
2 referring domains · OpenPageRank
Infrastructure
- Hosted on Hetzner (144.76.55.199)
- DNS: first-ns.de
- Email: verwaltungsportal.de
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 27,462,225
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Baidu Analytics (百度统计) Sep 2026
- detected Cloudflare Browser Insights Sep 2026
- dropped OpenResty May 2026
- dropped Modernizr Apr 2026
- detected Baidu Analytics (百度统计) Jan 2026
- detected Google Analytics Jan 2026