rcs-it.dk is a .dk domain served by 2 nameservers (crystal.ns.cloudflare.com, jaziel.ns.cloudflare.com). It was registered on 27 May 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.215.161.69 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by rcsit-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 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 |
|---|---|---|---|---|---|---|---|
| 91.215.161.69 | 1800s | relayingsmtp.wtm-rcs.dk | AS47292 | Sentia Denmark A/S | 91.215.160.0/22 | 🇩🇰 Denmark | Silkeborg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| TXT Record |
|---|
| MS=ms77458075 |
| v=spf1 a mx include:spf.mtaroutes.com include:spf.protection.outlook.com include:_custspf.one.com ip4:91.215.163.48/29 ip4:91.215.161.24/29 -all |
| Policy | Record (rcs-it.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:spf.mtaroutes.com include:spf.protection.outlook.com include:_custspf.one.com ip4:91.215.163.48/29 ip4:91.215.161.24/29 -all |
| Policy | Record (_dmarc.rcs-it.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:5ygyuzpu@ag.dmarcian-eu.com; ruf=mailto:dmarc-reports@rcs.dk; aspf=s; adkim=s; sp=quarantine; fo=1; ri=86400; pct=100 |
| www CNAME | rcs-it.dk (all on rcs-it.dk) → 91.215.161.69 (AS47292) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 6/10 · 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 | 2410308953 |
| Primary NS (MNAME) | crystal.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2008-05-27 |
| Expires | 2027-05-31 (220d) |
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).
| Domain | Registrar |
|---|---|
| athena-greenline.dk | Punktum dk A/S (direct) |
| athena-wtm.dk | Punktum dk A/S (direct) |
| rcs-production.dk | ONE.COM A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 23:36:53 | 1051ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-19 13:01:57 | 1065ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 00:08:31 | 910ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 00:18:39 | 1509ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 22:22:15 | 1851ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-06 18:05:53 | 2160ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-30 16:20:34 | 2260ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 10:04:23 | 2189ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-25 11:17:23 shown | 743ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-23 21:21:18 | 2245ms | 2 NS 1 A 1 MX | ❓ Unknown |
| 2026-07-13 19:15:32 | 2101ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-08 16:49:08 | 11023ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 20:19:15 | 1835ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 10:59:19 | 1201ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 12:06:44 | 1815ms | 2 NS 1 A 1 MX | 🔓 Insecure |