What powers kerl.cz?
Last seen Sep 2026 · 15 technologies across 13 categories
Advertising
DoubleClick for Publishers (DFP)
since Jan 2019
Google Publisher Tag
since Feb 2021
Analytics
Google Analytics
since Jan 2019
CDN
DigitalOcean Spaces
since Jul 2025
JavaScript libraries
Operating systems
Debian
since Jan 2019
Performance
Priority Hints
since Sep 2026
Programming languages
Python
since Apr 2023
Security
HSTS
since Jul 2025
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Web frameworks
Django
since Apr 2023
Web servers
gunicorn
since Jul 2025
Widgets
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 checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Open Page Rank
1.56 / 10 · ranked #5,979,944 of all domains
3 referring domains · OpenPageRank
Infrastructure
- Email: no MX record returned
- Email security: DNSSEC signed
- Common Crawl link graph: rank 93,766,007, 2 hosts
DNS records as swept Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kerl.cz | 13 |
| www.kerl.cz | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Priority Hints Sep 2026