dtdc.dk is a .dk domain served by 2 nameservers (ingrid.ns.cloudflare.com, rodney.ns.cloudflare.com). It was registered on 3 October 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.69.219 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this 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 |
|---|---|---|---|---|---|---|---|
| 104.21.69.219 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.213.129 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:45db | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:d581 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.69.219,172.67.213.129 ech=AEX+DQBB/AAgACBaZWgJlxfm/jvVSIvyso5pBq4qdMs3HRwrPFZ7M2ZoOQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:45db,2606:4700:3033::ac43:d581 |
| TXT Record |
|---|
| v=spf1 mx include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com -all |
| Policy | Record (dtdc.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com -all |
| Policy | Record (_dmarc.dtdc.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:b5677ae8051a40fd80a6665b6d4140a6@dmarc-reports.cloudflare.net |
| www CNAME | dtdgroup.dk (all on dtdgroup.dk) |
| www vs bare domain | Different networks dtdc.dk: 34.248.192.126 52.213.59.21 2a05:d018:1657:2e01::f3d 2a05:d018:1657:2e02::f3d (AS16509) (all like this)www.dtdc.dk: 141.193.213.10 141.193.213.11 (AS209242) |
| 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 | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406613219 |
| Primary NS (MNAME) | ingrid.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2023-10-03 |
| Expires | 2027-10-02 (349d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-22 05:14:35 | 9605ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-28 00:26:35 | 996ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 18:09:29 | 784ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-22 03:24:44 | 1170ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 09:35:49 shown | 2064ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 22:10:42 | 431ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:50:53 | 345ms | 2 NS 2 A 0 MX | 🔓 Insecure |