DNS Record Lookup
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Hosting & Network
isbn.dk runs on AS24853, with email via Microsoft 365.
- Hosting network
- AS24853AS24853
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- Set
Sits alongside 8 other sites on AS24853. Stable here since we started watching (Aug 9, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to misc-proxy.dbc.dk.
DNS Records for isbn.dk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| isbn.dk | MX | 0 | isbn-dk.mail.protection.outlook.com | |
| isbn.dk | SOA | 86400 | ns.dbc.dk domains.dbc.dk 2024090846 28800 7200 604800 86400 | |
| isbn.dk | NS | 0 | sec1.rcode0.net | |
| isbn.dk | NS | 0 | sec2.rcode0.net | |
| isbn.dk | A | 0 | 193.111.162.19 | |
| isbn.dk | CAA | 0 | 0 issue letsencrypt.org | |
| isbn.dk | CAA | 0 | 0 iodef mailto:domains@dbc.dk | |
| isbn.dk | TXT | 0 | v=spf1 ip4:193.111.162.2 ip4:193.111.162.134 include:spf.protection.outlook.com include:spf.mailanyone.net include:servers.mcsv.net -all | |
| isbn.dk | TXT | 0 | MS=ms13523663 | |
| www.isbn.dk | CNAME | 0 | misc-proxy.dbc.dk | |
| www.isbn.dk | A | 0 | 193.111.162.19 |
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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