internationalbusinessmachines.dk is a .dk domain served by 4 nameservers (dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by .. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (internationalbusinessmachines.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.internationalbusinessmachines.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=reject;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves internationalbusinessmachines.dk: no address www.internationalbusinessmachines.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 1731334979 |
| Primary NS (MNAME) | dns1.p05.nsone.net |
| Responsible (RNAME) | webmaste@us.ibm.com |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 22:17:18 shown | 596ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-25 18:13:56 | 654ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-22 14:19:37 | 890ms | 4 NS 0 A 1 MX | ❓ Unknown |
| 2026-06-17 16:05:13 | 3553ms | 4 NS 0 A 0 MX | 🔓 Insecure |