DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

cassis.cz runs on AS15685, with email configured.

Hosting network
AS15685AS15685
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 2,480 other sites on AS15685. Stable here since we started watching (Jul 21, 2026).

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

DNS Records for cassis.cz

HostnameTypeTTLPriorityContent
cassis.czNS0s2.ray.cz
cassis.czNS0s1.ray.cz
cassis.czA081.0.206.199
cassis.czTXT0v=spf1 a mx ip4:81.0.206.199 ~all
cassis.czSOA180s1.ray.cz root.cassis.cz 2026071802 7200 1800 1209600 180
cassis.czCAA00 issue letsencrypt.org
cassis.czMX0mail.cassis.cz
www.cassis.czTXT0v=spf1 a mx ip4:81.0.206.199 ~all
www.cassis.czMX0mail.cassis.cz
www.cassis.czA081.0.206.199
www.cassis.czCAA00 issue letsencrypt.org
www.cassis.czSOA180s1.ray.cz root.cassis.cz 2026071802 7200 1800 1209600 180
www.cassis.czCNAME0cassis.cz
www.cassis.czNS0s1.ray.cz
www.cassis.czNS0s2.ray.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