DNS Record Lookup

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

Hosting & Network

cns.cz runs on AS29134, with email via Microsoft 365.

Hosting network
AS29134AS29134
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 10,601 other sites on AS29134. Stable here since we started watching (Sep 12, 2026).

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

DNS Records for cns.cz

HostnameTypeTTLPriorityContent
cns.czNS0ns2.ignum.cz
cns.czNS0ns1.ignum.com
cns.czMX01cns-cz.mail.protection.outlook.com
cns.czSOA360ns1.ignum.com hostmaster.ignum.cz 2026090904 1200 360 604800 360
cns.czA062.109.154.163
cns.czTXT0er3gTd3aLL8GPb62pqgQLGzKbZweSHGVcbyy0IqGIENDr0kutlKEXZWpyLo49Ai0opEdqVuSIMxCB5L9I1DmOA==
cns.czTXT0jh0787b1wc9w2jfw892b0rgfwhbr5mqn
cns.czTXT06p8xg3cscr9s6nh4435wgmlsqhm8xx59
cns.czTXT0openai-domain-verification=dv-Nhh3phX6ROlscAPF9O65rcsM
cns.czTXT0_374uicnal7eluygu3peuwk8rif0kaob
cns.czTXT0v=spf1 include:spf.protection.outlook.com include:spf1.cns.cz -all
cns.czTXT026.08.2025
cns.czTXT0_rczy8djklpcc6cnxpk6lj4vt60141mv
cns.czTXT0MS=ms44163262
cns.czTXT0_jxagbrx4j5f6yp2rkcm3mdjk3da7qwv
www.cns.czA062.109.154.163
www.cns.czNS0ns1.ignum.com
www.cns.czNS0ns2.ignum.cz
www.cns.czMX01cns-cz.mail.protection.outlook.com
www.cns.czSOA360ns1.ignum.com hostmaster.ignum.cz 2026090904 1200 360 604800 360
www.cns.czCNAME0cns.cz
www.cns.czTXT0er3gTd3aLL8GPb62pqgQLGzKbZweSHGVcbyy0IqGIENDr0kutlKEXZWpyLo49Ai0opEdqVuSIMxCB5L9I1DmOA==
www.cns.czTXT0MS=ms44163262
www.cns.czTXT0openai-domain-verification=dv-Nhh3phX6ROlscAPF9O65rcsM
www.cns.czTXT0_rczy8djklpcc6cnxpk6lj4vt60141mv
www.cns.czTXT026.08.2025
www.cns.czTXT0_jxagbrx4j5f6yp2rkcm3mdjk3da7qwv
www.cns.czTXT0v=spf1 include:spf.protection.outlook.com include:spf1.cns.cz -all
www.cns.czTXT0_374uicnal7eluygu3peuwk8rif0kaob
www.cns.czTXT0jh0787b1wc9w2jfw892b0rgfwhbr5mqn
www.cns.czTXT06p8xg3cscr9s6nh4435wgmlsqhm8xx59

Get alerted the moment cns.cz's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch cns.cz continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

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