dtdmail.dk is a .dk domain served by 4 nameservers (ns1.dtd.sse-ns.com, ns2.dtd.sse-ns.com, ns3.dtd.sse-ns.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.249.17 is hosted by team.blue Denmark A/S (AS48854) in Denmark. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 212.237.249.17 | 60s | splash.dandomain.dk | AS48854 | team.blue Denmark A/S | 212.237.248.0/23 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 mx include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com -all |
| Policy | Record (dtdmail.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com -all |
| Policy | Record (_dmarc.dtdmail.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:df8e5f6289f844d5a87e07a1c4427699@dmarc-reports.cloudflare.net |
| www | Exists, no address |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 1 |
| Primary NS (MNAME) | ns1.dtd.sse-ns.com |
| Responsible (RNAME) | domains@superstruct.com |
| Refresh | 7200s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 12:56:13 shown | 570ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-28 00:46:41 | 3000ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-22 04:52:19 | 3911ms | 4 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-30 11:03:14 | 1504ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-21 15:24:12 | 817ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-25 09:14:18 | 852ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:50:19 | 447ms | 2 NS 2 A 0 MX | 🔓 Insecure |