reachonline.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 18 March 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by reachonline-dk.mail.protection.outlook.com. 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| TXT Record |
|---|
| MS=ms22743744 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (reachonline.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves reachonline.dk: no address www.reachonline.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2020100900 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2011-03-18 |
| Expires | 2027-03-31 (155d) |
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 |
|---|---|---|---|
| 2026-10-26 03:02:27 | 467ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-21 22:27:17 | 490ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-13 05:02:35 | 1209ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-07 18:51:12 | 1118ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-02 00:07:57 | 702ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-26 09:36:36 | 1787ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-26 08:31:44 | 2308ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-22 02:56:13 | 1150ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-21 20:16:58 shown | 5512ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-21 06:35:10 | 1166ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 07:35:35 | 1975ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-18 07:28:52 | 1069ms | 4 NS 0 A 1 MX | 🔒 Secure |