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Hosting & Network
jcnet.cz runs on AS44002, with email configured.
- Hosting network
- AS44002AS44002
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 13 other sites on AS44002. Stable here since we started watching (Jul 16, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for jcnet.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| jcnet.cz | AAAA | 0 | 2a02:970:1::1010 | |
| jcnet.cz | TXT | 0 | google-site-verification=9YGOOvCACKDaTYa3Gd2crz2k5WFTghCkP3N2PAWyBuw | |
| jcnet.cz | TXT | 0 | v=spf1 include:_spf.sys-data.com include:_spf.google.com ~all | |
| jcnet.cz | MX | 0 | 100 | smtp.brouzdej.net |
| jcnet.cz | MX | 0 | 10 | smtp.sys-data.com |
| jcnet.cz | MX | 0 | 200 | proxmoxmailgateway.sys-data.com |
| jcnet.cz | SOA | 86400 | jcnet.cz podpora.sys-data.com 2008120209 28800 7200 604800 86400 | |
| jcnet.cz | A | 0 | 79.98.72.15 | |
| jcnet.cz | NS | 0 | b.ns.brouzdej.net | |
| jcnet.cz | NS | 0 | a.ns.brouzdej.net | |
| www.jcnet.cz | AAAA | 0 | 2a02:970:1::1010 | |
| www.jcnet.cz | A | 0 | 79.98.72.15 |
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain