DNS Record Lookup
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Hosting & Network
kolb.cz runs on AS24806 (multi-homed across 2 networks), with email configured.
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 28,258 other sites on AS24806. Stable here since we started watching (Nov 3, 2026).
DNS Records for kolb.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| kolb.cz | SOA | 3600 | ns1.ignum.com hostmaster.ignum.cz 2026102201 10800 3600 604800 3600 | |
| kolb.cz | TXT | 0 | google-site-verification=5P14L3ROKjB4739-5Wvd6dwcnG0MO6L70Di91M9jIFE | |
| kolb.cz | TXT | 0 | google-site-verification=BzSTy07axZGTyllQR8DlwnVG0xabdflZcvrld6QpHjI | |
| kolb.cz | TXT | 0 | v=spf1 a mx ip4:193.165.170.155 a:production2.kolb.cz a:production3.kolb.cz a:production4.kolb.cz a:production6.kolb.cz -all | |
| kolb.cz | NS | 0 | ns2.ignum.cz | |
| kolb.cz | NS | 0 | ns1.ignum.com | |
| kolb.cz | A | 0 | 81.2.216.36 | |
| kolb.cz | A | 0 | 146.255.27.157 | |
| kolb.cz | MX | 0 | 10 | mail.kolb.cz |
| www.kolb.cz | TXT | 0 | v=spf1 a mx ip4:193.165.170.155 a:production2.kolb.cz a:production3.kolb.cz a:production4.kolb.cz a:production6.kolb.cz -all | |
| www.kolb.cz | CNAME | 0 | production2.kolb.cz | |
| www.kolb.cz | A | 0 | 81.2.216.20 |
Get alerted the moment kolb.cz's DNS changes
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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
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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