mmcom.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 7 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.221.196.253 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mmcom-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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 91.221.196.253 | 14400s | — | AS51468 | One.com A/S | 91.221.196.0/23 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| 🔶 Autoconfig | 94.231.103.163 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (mmcom.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www CNAME | matemeouddannelsen.dk (all on matemeouddannelsen.dk) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.mmcom.dk |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-mmcom-dk._domainkey.mmcomdk.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-mmcom-dk._domainkey.mmcomdk.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2024061101 |
| 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 | 2011-02-07 |
| Expires | 2027-02-28 (133d) |
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 |
|---|---|
| martemeouddannelsen.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 00:05:23 | 1217ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 17:39:53 | 1269ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 17:24:59 shown | 1035ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 02:38:42 | 1522ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 23:26:01 | 2204ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 08:09:34 | 1253ms | 4 NS 1 A 1 MX | 🔒 Secure |