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Hosting & Network
a1m.cz runs on AS48574, with email via Microsoft 365.
- Hosting network
- AS48574AS48574
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 17 other sites on AS48574. Stable here since we started watching (Aug 7, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for a1m.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| a1m.cz | A | 0 | 217.30.79.72 | |
| a1m.cz | NS | 0 | ns02.a1m.cz | |
| a1m.cz | NS | 0 | ns03.a1m.cz | |
| a1m.cz | NS | 0 | ns01.a1m.cz | |
| a1m.cz | SOA | 3600 | ns01.a1m.cz it.aim-networks.com 2026061001 1200 600 1209600 3600 | |
| a1m.cz | MX | 0 | 10 | a1m-cz.mail.protection.outlook.com |
| a1m.cz | TXT | 0 | MS=ms45649755 | |
| a1m.cz | TXT | 0 | v=spf1 ip4:217.30.79.41/32 ip4:217.30.79.42/32 ip4:217.30.79.43/32 ip4:217.30.79.73/32 ip4:217.30.79.74/32 include:spf.protection.outlook.com -all | |
| a1m.cz | TXT | 0 | MS=ms73920585 | |
| a1m.cz | TXT | 0 | _ioyi9lzrswqgnqkfk1xqgnycua6ykyk | |
| a1m.cz | TXT | 0 | _lhwlhwuwdmfbl1t3ycn395dzaqtarjn | |
| www.a1m.cz | A | 0 | 217.30.79.72 |
Get alerted the moment a1m.cz's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch a1m.cz continuously, notifying you the moment anything moves across all three signals:
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.
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