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Hosting & Network
gretes.cz runs on AS43541, with email via Microsoft 365.
- Hosting network
- AS43541AS43541
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 13,508 other sites on AS43541. Stable here since we started watching (Sep 26, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to gretes.cz.
DNS Records for gretes.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| gretes.cz | TXT | 0 | v=spf1 include:spf.protection.outlook.com -all | |
| gretes.cz | TXT | 0 | MS=ms38207096 | |
| gretes.cz | NS | 0 | ns.pipni.cz | |
| gretes.cz | NS | 0 | ns3.pipni.cz | |
| gretes.cz | NS | 0 | ns2.pipni.cz | |
| gretes.cz | A | 0 | 93.185.104.21 | |
| gretes.cz | MX | 0 | 10 | gretes-cz.mail.protection.outlook.com |
| gretes.cz | SOA | 86400 | ns.pipni.cz pipni.pipni.cz 495393137 10800 1800 604800 86400 | |
| www.gretes.cz | CNAME | 0 | gretes.cz | |
| www.gretes.cz | NS | 0 | ns2.pipni.cz | |
| www.gretes.cz | NS | 0 | ns.pipni.cz | |
| www.gretes.cz | NS | 0 | ns3.pipni.cz | |
| www.gretes.cz | SOA | 86400 | ns.pipni.cz pipni.pipni.cz 495393137 10800 1800 604800 86400 | |
| www.gretes.cz | A | 0 | 93.185.104.21 | |
| www.gretes.cz | MX | 0 | 10 | gretes-cz.mail.protection.outlook.com |
| www.gretes.cz | TXT | 0 | v=spf1 include:spf.protection.outlook.com -all | |
| www.gretes.cz | TXT | 0 | MS=ms38207096 |
Get alerted the moment gretes.cz's DNS changes
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Uptime
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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.
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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