What powers holcak.cz?
Last seen Aug 2026 · 7 technologies across 6 categories
Font scripts
Google Font API
since Sep 2024
JavaScript libraries
Miscellaneous
HTTP/3
since Sep 2024
Open Graph
since Sep 2024
Security
HSTS
since Sep 2024
UI frameworks
Pure CSS
since Sep 2024
Web servers
Nginx
since Sep 2024
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
AI Crawlers
No AI crawlers blocked
Open Page Rank
1.22 / 10 · ranked #9,706,694 of all domains
3 referring domains · OpenPageRank
Infrastructure
- Hosted on GIGASERVER (185.66.36.4)
- Email: gigaserver.cz
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 19,192,189, 3 hosts
DNS records as swept Sep 2026, certificate as seen Oct 2026. How the web is hosted