DNS Record Lookup
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Hosting & Network
internetpb.cz runs on AS49767, with email configured.
- Hosting network
- AS49767AS49767
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 23 other sites on AS49767. Stable here since we started watching (Aug 2, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to internetpb.cz.
DNS Records for internetpb.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| internetpb.cz | SOA | 300 | dns.iol.cz hostmaster.iol.cz 2026060417 900 3600 648000 300 | |
| internetpb.cz | MX | 0 | 100 | mx.int.pb.cz |
| internetpb.cz | NS | 0 | dns.iol.cz | |
| internetpb.cz | NS | 0 | ns2.tel.cz | |
| internetpb.cz | A | 0 | 109.72.0.73 | |
| www.internetpb.cz | CNAME | 0 | internetpb.cz | |
| www.internetpb.cz | NS | 0 | ns2.tel.cz | |
| www.internetpb.cz | NS | 0 | dns.iol.cz | |
| www.internetpb.cz | SOA | 300 | dns.iol.cz hostmaster.iol.cz 2026060417 900 3600 648000 300 | |
| www.internetpb.cz | A | 0 | 109.72.0.73 | |
| www.internetpb.cz | MX | 0 | 100 | mx.int.pb.cz |
Get alerted the moment internetpb.cz's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch internetpb.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, 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
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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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