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Hosting & Network
bluetone.cz runs on AS25248, with email via Microsoft 365.
- Hosting network
- AS25248AS25248
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 76 other sites on AS25248. Stable here since we started watching (Jul 17, 2026).
DNS Records for bluetone.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| bluetone.cz | A | 0 | 84.244.77.198 | |
| bluetone.cz | AAAA | 0 | 2a02:a40:2:1::54f4:4dc6 | |
| bluetone.cz | AAAA | 0 | 2a02:a40:2:1::54f4:4dd9 | |
| bluetone.cz | TXT | 0 | MS=ms49405193 | |
| bluetone.cz | TXT | 0 | v=spf1 include:smtp.cra.cz include:spf.protection.outlook.com -all | |
| bluetone.cz | SOA | 10800 | ns.bluetone.cz root.bluetone.cz 2026070103 3600 3600 1209600 10800 | |
| bluetone.cz | MX | 0 | 10 | bluetone-cz.mail.protection.outlook.com |
| bluetone.cz | NS | 0 | ns2.bluetone.cz | |
| bluetone.cz | NS | 0 | ns1.bluetone.cz | |
| bluetone.cz | NS | 0 | ns.bluetone.cz | |
| www.bluetone.cz | CNAME | 0 | npm.bluetone.cz | |
| www.bluetone.cz | TXT | 0 | v=spf1 ip4:84.244.77.198 ip6:2a02:a40:2:1::54f4:4dc6 -all | |
| www.bluetone.cz | AAAA | 0 | 2a02:a40:2:1::54f4:4dc6 | |
| www.bluetone.cz | A | 0 | 84.244.77.198 |
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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