tmm.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 23 January 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.161.112.103 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 93.161.112.103 | 3600s | 93-161-112-103-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 93.160.0.0/14 | 🇩🇰 Denmark | Gilleleje |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | server.tmm.dk → 93.161.112.103 |
| 🔶 Autoconfig | server.tmm.dk → 93.161.112.103 |
| TXT Record |
|---|
| v=spf1 include:_spf.netgiganten.dk -all |
| Policy | Record (tmm.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.netgiganten.dk -all |
| Policy | Record (_dmarc.tmm.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; pct=100; rua=mailto:dmarc@tmm.dk; ruf=mailto:dmarc@tmm.dk |
| www CNAME | server.tmm.dk (all on tmm.dk) → 93.161.112.103 (AS3292) |
| www vs bare domain | Same network |
| 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 |
|---|---|---|
| default | — | RSA · ~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| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.tmm.dk | server.tmm.dk |
| TXT | server.tmm.dk | YSBlDiBpfRsbAUnIWVNdF7NhFn2MxDDWXTLeNdo7TCc |
| TXT | server.tmm.dk | kgPs-Dn9Xjv9h034QWTP0w5OXPXhg8N8m7NDDdxiDw0 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.spamfri.dk | DANE-EE · SPKI · SHA-256 | 884451547A03D0AC2F628D943839BAA6… |
| SMTP _25._tcp.mx2.spamfri.dk | DANE-EE · SPKI · SHA-256 | 6598C93F79B95376BB8099E9AC862167… |
| SMTP _25._tcp.mx3.spamfri.dk | DANE-EE · SPKI · SHA-256 | BBFB0694919290E5BC9D6E2C6F47D846… |
| SMTP _25._tcp.mx4.spamfri.dk | DANE-EE · SPKI · SHA-256 | 4EE743A99328AEF5142706CA5FD3AD61… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026102501 |
| 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 | Punktum dk A/S (direct) |
| Registered | 1998-01-23 |
| Expires | 2027-03-31 (154d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-26 09:44:37 shown | 1419ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-24 16:51:11 | 897ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-13 14:25:37 | 1273ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-07 17:08:11 | 511ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-02 07:40:53 | 854ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-09 05:47:33 | 986ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 14:06:41 | 581ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 13:13:14 | 640ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-13 22:00:14 | 1382ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-08 14:00:31 | 9243ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-29 03:25:52 | 921ms | 4 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 13:18:39 | 2675ms | 4 NS 1 A 4 MX | 🔒 Secure |