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Hosting & Network
cah.cz runs on AS13036, with email configured.
- Hosting network
- AS13036AS13036
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 3,169 other sites on AS13036. Stable here since we started watching (Oct 26, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to cah.cz.
DNS Records for cah.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cah.cz | NS | 0 | mat.cah.cz | |
| cah.cz | NS | 0 | pat.cah.cz | |
| cah.cz | NS | 0 | kat.cah.cz | |
| cah.cz | SOA | 300 | mat.cah.cz hostmaster.cah.cz 2026102161 7200 900 1209600 300 | |
| cah.cz | TXT | 0 | v=spf1 mx include:_spf.mlsend.com ~all | |
| cah.cz | TXT | 0 | HARICA-TPKMZASk6ql0gckFWd6 | |
| cah.cz | TXT | 0 | HARICA-bLoos2ryzQ4jDnjgbdm | |
| cah.cz | TXT | 0 | byBatouCRMuUcaSwrsRpFA3KkoTa8zwyEaD6nIsLU4eGCBH8u59qfpPU4wif31o5rikpLK8XjBkt+Gf4ccB+vA== | |
| cah.cz | TXT | 0 | MS=ms84544641 | |
| cah.cz | MX | 0 | 10 | mercury.prg.aero |
| cah.cz | MX | 0 | 10 | astra.prg.aero |
| cah.cz | MX | 0 | 30 | astra2.prg.aero |
| cah.cz | A | 0 | 193.179.211.58 | |
| www.cah.cz | NS | 0 | pat.cah.cz | |
| www.cah.cz | NS | 0 | kat.cah.cz | |
| www.cah.cz | NS | 0 | mat.cah.cz | |
| www.cah.cz | TXT | 0 | HARICA-bLoos2ryzQ4jDnjgbdm | |
| www.cah.cz | TXT | 0 | byBatouCRMuUcaSwrsRpFA3KkoTa8zwyEaD6nIsLU4eGCBH8u59qfpPU4wif31o5rikpLK8XjBkt+Gf4ccB+vA== | |
| www.cah.cz | TXT | 0 | MS=ms84544641 | |
| www.cah.cz | TXT | 0 | v=spf1 mx include:_spf.mlsend.com ~all | |
| www.cah.cz | TXT | 0 | HARICA-TPKMZASk6ql0gckFWd6 | |
| www.cah.cz | SOA | 300 | mat.cah.cz hostmaster.cah.cz 2026102161 7200 900 1209600 300 | |
| www.cah.cz | A | 0 | 193.179.211.58 | |
| www.cah.cz | MX | 0 | 10 | astra.prg.aero |
| www.cah.cz | MX | 0 | 10 | mercury.prg.aero |
| www.cah.cz | MX | 0 | 30 | astra2.prg.aero |
| www.cah.cz | CNAME | 0 | cah.cz |
Get alerted the moment cah.cz's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch cah.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