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
- 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
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cns.cz | NS | 0 | ns2.ignum.cz | |
| cns.cz | NS | 0 | ns1.ignum.com | |
| cns.cz | MX | 0 | 1 | cns-cz.mail.protection.outlook.com |
| cns.cz | SOA | 360 | ns1.ignum.com hostmaster.ignum.cz 2026090904 1200 360 604800 360 | |
| cns.cz | A | 0 | 62.109.154.163 | |
| cns.cz | TXT | 0 | er3gTd3aLL8GPb62pqgQLGzKbZweSHGVcbyy0IqGIENDr0kutlKEXZWpyLo49Ai0opEdqVuSIMxCB5L9I1DmOA== | |
| cns.cz | TXT | 0 | jh0787b1wc9w2jfw892b0rgfwhbr5mqn | |
| cns.cz | TXT | 0 | 6p8xg3cscr9s6nh4435wgmlsqhm8xx59 | |
| cns.cz | TXT | 0 | openai-domain-verification=dv-Nhh3phX6ROlscAPF9O65rcsM | |
| cns.cz | TXT | 0 | _374uicnal7eluygu3peuwk8rif0kaob | |
| cns.cz | TXT | 0 | v=spf1 include:spf.protection.outlook.com include:spf1.cns.cz -all | |
| cns.cz | TXT | 0 | 26.08.2025 | |
| cns.cz | TXT | 0 | _rczy8djklpcc6cnxpk6lj4vt60141mv | |
| cns.cz | TXT | 0 | MS=ms44163262 | |
| cns.cz | TXT | 0 | _jxagbrx4j5f6yp2rkcm3mdjk3da7qwv | |
| www.cns.cz | A | 0 | 62.109.154.163 | |
| www.cns.cz | NS | 0 | ns1.ignum.com | |
| www.cns.cz | NS | 0 | ns2.ignum.cz | |
| www.cns.cz | MX | 0 | 1 | cns-cz.mail.protection.outlook.com |
| www.cns.cz | SOA | 360 | ns1.ignum.com hostmaster.ignum.cz 2026090904 1200 360 604800 360 | |
| www.cns.cz | CNAME | 0 | cns.cz | |
| www.cns.cz | TXT | 0 | er3gTd3aLL8GPb62pqgQLGzKbZweSHGVcbyy0IqGIENDr0kutlKEXZWpyLo49Ai0opEdqVuSIMxCB5L9I1DmOA== | |
| www.cns.cz | TXT | 0 | MS=ms44163262 | |
| www.cns.cz | TXT | 0 | openai-domain-verification=dv-Nhh3phX6ROlscAPF9O65rcsM | |
| www.cns.cz | TXT | 0 | _rczy8djklpcc6cnxpk6lj4vt60141mv | |
| www.cns.cz | TXT | 0 | 26.08.2025 | |
| www.cns.cz | TXT | 0 | _jxagbrx4j5f6yp2rkcm3mdjk3da7qwv | |
| www.cns.cz | TXT | 0 | v=spf1 include:spf.protection.outlook.com include:spf1.cns.cz -all | |
| www.cns.cz | TXT | 0 | _374uicnal7eluygu3peuwk8rif0kaob | |
| www.cns.cz | TXT | 0 | jh0787b1wc9w2jfw892b0rgfwhbr5mqn | |
| www.cns.cz | TXT | 0 | 6p8xg3cscr9s6nh4435wgmlsqhm8xx59 |
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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Ask about cns.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