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Hosting & Network
heimstaden.cz runs on AS39790, with DNS by Azure DNS and email via Microsoft 365.
- Hosting network
- AS39790AS39790
- Managed DNS
- Azure DNS
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 2,172 other sites on AS39790. Stable here since we started watching (Sep 11, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for heimstaden.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| heimstaden.cz | A | 0 | 81.91.91.91 | |
| heimstaden.cz | TXT | 0 | atlassian-domain-verification=7rqB8zdrBu83U9OCIHEe7dUSil84Fa6gMA7YAHE7F2tJG3k3Y235VQrhq/kvGgMO | |
| heimstaden.cz | TXT | 0 | miro-verification=0cdc7b0e836f76b75ac23eebde275520c348350b | |
| heimstaden.cz | TXT | 0 | MS=ms70864120 | |
| heimstaden.cz | TXT | 0 | v=spf1 include:spf.protection.outlook.com ip6:2001:1568:13::223 -all | |
| heimstaden.cz | TXT | 0 | hibp-verify=dweb_y020cik6ar1j54fpe6abu318 | |
| heimstaden.cz | TXT | 0 | openai-domain-verification=dv-LVtGGGxXolBHnQAQtGMSxK1p | |
| heimstaden.cz | NS | 0 | ns4-07.azure-dns.info | |
| heimstaden.cz | NS | 0 | ns1-07.azure-dns.com | |
| heimstaden.cz | NS | 0 | ns3-07.azure-dns.org | |
| heimstaden.cz | NS | 0 | ns2-07.azure-dns.net | |
| heimstaden.cz | MX | 0 | heimstaden-cz.mail.protection.outlook.com | |
| heimstaden.cz | SOA | 300 | ns1-07.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300 | |
| www.heimstaden.cz | A | 0 | 81.91.91.91 |
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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