What powers 
navrcholu.cz?
Last seen Dec 2023 · 13 technologies across 12 categories
Analytics
Google Analytics
since Aug 2018
CDN
Amazon S3
since Oct 2022
JavaScript libraries
jQuery
since Aug 2018
Miscellaneous
Open Graph
since Oct 2022
Operating systems
Debian
since Dec 2023
PaaS
Amazon Web Services
since Oct 2022
Programming languages
Java
since Aug 2021
Segmentation
Oracle BlueKai
since Aug 2021
Tag managers
Google Tag Manager
since Aug 2018
Web server extensions
Web servers
Webmail
Google Workspace
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
7.42 / 10 · ranked #22,339 of all domains
420 referring domains · OpenPageRank
Infrastructure
- Registered Dec 1997 (28 years), renews Oct 2026
- Hosted on MASTER-AS Czech Republic www.master.cz (91.213.160.134, IPv6)
- DNS: iinfo.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 2,119,494, 8 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted