rsonline.dk is a .dk domain served by 2 nameservers (dns1.cscdns.net, dns2.cscdns.net). It was registered on 30 October 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by eu-smtp-inbound-1.mimecast.com, eu-smtp-inbound-2.mimecast.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.
| TXT Record |
|---|
| google-site-verification=0D54qftDbo8P-K04A-QR3q0liy7GrzFCdCoT-cj_ziE |
| MS=ms92285661 |
| v=spf1 ip4:157.203.180.194 include:nets1.spf.messagelabs.com include:nets2.spf.messagelabs.com include:eu._netblocks.mimecast.com include:spfa.protection.outlook.com include:spfb.protection.outlook.com -all |
| Policy | Record (rsonline.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:157.203.180.194 include:nets1.spf.messagelabs.com include:nets2.spf.messagelabs.com include:eu._netblocks.mimecast.com include:spfa.protection.outlook.com include:spfb.protection.outlook.com -all |
| Policy | Record (_dmarc.rsonline.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:bb76c174f2a7733@rep.dmarcanalyzer.com; ruf=mailto:bb76c174f2a7733@for.dmarcanalyzer.com; fo=1 |
| www CNAME | prod-europe.electrocomponents.com (all on electrocomponents.com) |
| www vs bare domain | Only www resolves (all like this) |
| 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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2018080111 |
| Primary NS (MNAME) | dns1.cscdns.net |
| Responsible (RNAME) | hostmaster@cscdns.net |
| Refresh | 10800s |
| Retry | 1800s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2003-10-30 |
| Expires | 2026-10-31 (10d) |
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 |
|---|---|
| ok-do.dk | CSC Digital Brand Service, Inc |
| okdo.dk | CSC Digital Brand Service, Inc |
| rs-components.dk | CSC Digital Brand Service, Inc |
| rscomponents.dk | CSC Digital Brand Service, Inc |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 19:19:21 | 837ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-27 13:18:04 | 1217ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-22 05:41:54 | 1852ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-22 04:24:09 | 1181ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 03:16:58 | 647ms | 2 NS 0 A 2 MX | ⚠️ Bogus |
| 2026-06-19 09:38:19 | 6106ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-18 04:22:47 shown | 1092ms | 2 NS 0 A 2 MX | 🔓 Insecure |