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o2.cz

DNS Records

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Hosting & Network

o2.cz runs on AS5610, with email configured.

Hosting network
AS5610AS5610
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 304 other sites on AS5610. Stable here since we started watching (Jul 15, 2026).

The apex and www are the same hosting — the apex via A records.

DNS Records for o2.cz

HostnameTypeTTLPriorityContent
o2.czMX010smtp-in.o2.cz
o2.czNS0ns2.tel.cz
o2.czNS0dns.iol.cz
o2.czAAAA02001:41d8:1:742:2::2
o2.czA0160.218.161.162
o2.czSOA10800dns.iol.cz hostmaster.iol.cz 2026072322 10800 3600 2592000 10800
o2.czTXT0v=spf1 include:out.o2.cz a:aa.iol.cz ip4:90.176.151.28 include:spf.mailforce.cz include:spfe.targito.com include:o2.secar.cz ip4:74.121.51.138 include:spf.smartemailing.cz include:spf.finforce.cz -all
o2.czTXT0PZ3jepCkOh+eOvAvsDTRPHvNHoyzbJLH9ySyuAZFFY4maiTfijGZg4E7xmBQb1R9RmOW+qUkHfl/raEpx37rrA==
o2.czTXT0browserstack-domain-verification=959efc5e-d239-4b29-972b-846a3587e939
o2.czTXT0miro-verification=814cf298c288c6fcf51f6243354f4ff27b13a3d0
o2.czTXT0apple-domain-verification=VZSWFvHLE8imRQhe
o2.czTXT0_9frav04xdjt7z530iuh0x10dk8qxx7o
o2.czTXT0google-site-verification=0TIBeL91z3rZRIMY0CZSLblUAbTxh0Kr8BPG3LFtA_8
o2.czTXT07m05t8bvlcch53s7ys5nrxwxsnrgmphd
o2.czTXT0intersight=56f3c8232259f96eaa965d84ea4b75dfa15ed49b46edcdbe50c16dff242f86b8
o2.czTXT0MS=7B9F81FDD83DA2FFCACC2C8F3F61B941A25EDBB4
o2.czTXT0BzCZOqDSK7VNYlnjcF6OxfxT1TveRa3w68sz57ZbjxMmjM+qEgJcT509Hcr/fPqEcD3bV+qDZh2FegTRtZvcXw==
o2.czTXT0google-site-verification=dmXvwWWa1j3drUuBbW7E0YVtqVGwtB1HY4tN6B9sFSw
o2.czTXT0MS=ms52641182
o2.czTXT0ppe-87ef0e4514ad3c042110125606a3c6311b5dc64b
www.o2.czA0160.218.161.162
www.o2.czAAAA02001:41d8:1:742:2::2

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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