rts.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 July 1995 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.56.146.94 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by rts-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.56.146.94 | 3600s | — | AS31027 | GlobalConnect A/S | 5.56.144.0/20 | 🇩🇰 Denmark | Sorø |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| GfNXvMWddFZbq5PuqQG0P6RwXnQp82DwtcDhlU1klzCrP50wL+Nwc3exejzzcnk6CNFYa8c0LSC3EtsfHelgNw== |
| MS=ms45381978 |
| uvmid=265401 |
| v=spf1 ip4:5.56.146.71 ip4:5.56.146.97 ip4:98.71.214.60 ip4:89.233.19.231 include:spf.protection.outlook.com include:spf.mcb.dk include:email.freshdesk.com include:emply.com include:smtp.erpsmtp.mdcnordic.com |
| Policy | Record (rts.dk) |
|---|---|
| no all — incomplete SPF | v=spf1 ip4:5.56.146.71 ip4:5.56.146.97 ip4:98.71.214.60 ip4:89.233.19.231 include:spf.protection.outlook.com include:spf.mcb.dk include:email.freshdesk.com include:emply.com include:smtp.erpsmtp.mdcnordic.com |
| Policy | Record (_dmarc.rts.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 5.56.146.94 (AS31027) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 16/10 · policy: none
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026091214 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1995-07-04 |
| Expires | 2027-09-30 (345d) |
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 |
|---|---|---|---|
| 2026-10-16 11:57:40 | 1141ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 22:50:45 | 1939ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 22:39:08 | 1414ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-05 22:20:12 | 2792ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 21:57:36 | 1011ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 03:42:35 | 1075ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 15:17:45 | 812ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-20 07:15:05 | 980ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 09:05:01 | 2383ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 15:17:00 shown | 1237ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 16:15:57 | 1304ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 18:07:55 | 4196ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 03:33:42 | 1406ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 04:21:08 | 2243ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 03:10:31 | 1081ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-05 22:21:25 | 5677ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 04:13:34 | 850ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 20:44:06 | 2456ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 15:29:48 | 1089ms | 2 NS 1 A 1 MX | 🔒 Secure |