dtco.dk is a .dk domain served by 2 nameservers (dns1.cscdns.net, dns2.cscdns.net). It was registered on 12 December 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.28.184.74 is hosted by COLT Technology Services Group Limited (AS8220) in Germany. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| dns1.cscdns.net | — | — | — |
| dns2.cscdns.net | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.28.184.74 | — | — | AS8220 | COLT Technology Services Group Limited | 46.28.184.0/24 | 🇩🇪 Germany | — |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (dtco.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| www | 46.28.184.74 (AS8220) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 0/10 · 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 | 2016021704 |
| Primary NS (MNAME) | dns1.cscdns.net |
| Responsible (RNAME) | hostmaster@cscdns.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 14400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2003-12-12 |
| Expires | 2026-12-31 (71d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 02:43:52 | 1008ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-27 18:40:10 | 2678ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-01 23:36:33 | 707ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:50:53 shown | 376ms | 2 NS 1 A 0 MX | 🔓 Insecure |