tdh-net.dk is a .dk domain served by 2 nameservers (ns1.tdh-net.dk, ns2.tdh-net.dk). It was registered on 2 November 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.28 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by tdhnet-dk0i.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.tdh-net.dk | 185.229.151.68 | ns1.tdh-net.dk | AS204988 TDH-Net ApS |
| ns2.tdh-net.dk | 185.229.151.76 | ns2.tdh-net.dk | AS204988 TDH-Net ApS |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.41.28 | 300s | vm1350.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| TXT Record |
|---|
| MS=ms73133052 |
| v=spf1 ip4:104.248.95.48 ip4:94.231.106.191 include:spf.mandrillapp.com include:relay.tdh-net.dk include:relay2.tdh-net.dk include:spf.protection.outlook.com include:spf.mailanyone.net -all |
| Policy | Record (tdh-net.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:104.248.95.48 ip4:94.231.106.191 include:spf.mandrillapp.com include:relay.tdh-net.dk include:relay2.tdh-net.dk include:spf.protection.outlook.com include:spf.mailanyone.net -all |
| Policy | Record (_dmarc.tdh-net.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; |
| www | 185.21.41.28 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 5/10 · 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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026101400 |
| Primary NS (MNAME) | ns1.tdh-net.dk |
| Responsible (RNAME) | info@tdh-net.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2005-11-02 |
| Expires | 2027-11-30 (409d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 13:53:33 shown | 3001ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-09 04:30:45 | 1310ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-06 02:43:53 | 2161ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 01:19:46 | 1153ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 08:04:43 | 1758ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-20 11:54:15 | 1550ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-17 19:37:14 | 1717ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-16 12:39:26 | 1313ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 07:04:55 | 1468ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 00:03:36 | 703ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 22:24:02 | 5849ms | 2 NS 1 A 1 MX | 🔓 Insecure |