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zonemaster.cz

DNS Records

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Hosting & Network

zonemaster.cz runs on AS8251, with email configured.

Hosting network
AS8251AS8251
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
Set

Sits alongside 206 other sites on AS8251. Stable here since we started watching (Jul 27, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to zonemaster.cz.

DNS Records for zonemaster.cz

HostnameTypeTTLPriorityContent
zonemaster.czAAAA02a01:490:0:1512::23
zonemaster.czMX0
zonemaster.czNS0inspiration.danysek.cz
zonemaster.czNS0slavens.danysek.eu
zonemaster.czNS0independence.segv.cz
zonemaster.czNS0adm.silc.cz
zonemaster.czCAA00 iodef mailto:abuse@danysek.cz
zonemaster.czCAA00 issue letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/10193613
zonemaster.czTXT0v=spf1 -all
zonemaster.czSOA3600adm.silc.cz dns.silc.cz 2025051515 28800 7200 604800 3600
zonemaster.czA031.47.108.23
www.zonemaster.czMX0
www.zonemaster.czSOA3600adm.silc.cz dns.silc.cz 2025051515 28800 7200 604800 3600
www.zonemaster.czAAAA02a01:490:0:1512::23
www.zonemaster.czCAA00 issue letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/10193613
www.zonemaster.czCAA00 iodef mailto:abuse@danysek.cz
www.zonemaster.czA031.47.108.23
www.zonemaster.czTXT0v=spf1 -all
www.zonemaster.czNS0inspiration.danysek.cz
www.zonemaster.czNS0slavens.danysek.eu
www.zonemaster.czNS0adm.silc.cz
www.zonemaster.czNS0independence.segv.cz
www.zonemaster.czCNAME0zonemaster.cz

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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