sdco.dk is a .dk domain served by 2 nameservers (ns1.rsyd.dk, ns2.rsyd.dk). It was registered on 21 June 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.163.231.69 is hosted by Region Syddanmark (AS44328) in Denmark. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|
| ns1.rsyd.dk | 193.163.230.6 | ns1.rsyd.dk | AS44328 Region Syddanmark |
| ns2.rsyd.dk | 193.163.227.5 | ns2.rsyd.dk | AS44328 Region Syddanmark |
| TXT Record |
|---|
| _globalsign-domain-verification=g_jpr_6ufJP9v2_IY394OgYi0VmZBHlWFHaClpnHPX |
| www CNAME | sdco.dk (all on sdco.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 4-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 711 |
| Primary NS (MNAME) | ns1.rsyd.dk |
| Responsible (RNAME) | hostmaster@rsyd.dk |
| Refresh | 10800s |
| Retry | 1080s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2017-06-21 |
| Expires | 2031-06-30 (1717d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 19:46:11 | 20179ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-09 13:44:10 | 17281ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-06 04:23:08 | 4710ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-05 04:22:01 | 17204ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-30 03:52:02 | 8902ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-28 03:41:50 | 17006ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-27 03:24:57 | 16930ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-26 03:04:22 | 4817ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-22 00:13:50 | 5135ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-14 23:30:21 | 4909ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-07 22:02:38 | 17054ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-31 05:44:06 | 19248ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-26 16:29:11 | 17051ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-25 12:28:59 | 4874ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-22 11:31:41 | 5109ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-19 06:01:42 shown | 12514ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-18 03:57:02 | 4975ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-15 15:27:32 | 10935ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-10 13:55:57 | 8566ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-06 16:25:33 | 9369ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-31 00:43:45 | 2789ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-25 23:23:07 | 8843ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-22 12:42:13 | 2854ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-18 00:23:01 | 7761ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-16 11:41:29 | 5282ms | 2 NS 1 A 0 MX | 🔒 Secure |