mth.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 29 November 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.20.204.81 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net 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 |
|---|---|---|---|---|---|---|---|
| 185.20.204.81 | 300s | — | AS48854 | team.blue Denmark A/S | 185.20.204.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _5jtgw72nsfimf591q0gpxct3mi3pdee |
| _globalsign-domain-verification=qUf0cRiFj_8WY8x8i2-XzlJcAirsbQ4VC-ZJB3dp3k |
| _gmuh0de7th5ype6h2zrrsnwcmq0bt50 |
| _rdemhtryd7kg6a4rdyxjafsdz41nmrb |
| _vrw9dftradaa1g5qhf5f587vpfultdf |
| 1U/M47qrVgGcaB6YBAHyPyj4q3NVGnAWcBBVdNqdsLc= |
| autodesk-domain-verification=XkYijxh9mxl631DmpIVX |
| M7REZOdklKFfRptynnhZ2m8vyjC8x8VndAkslWQ/bCM= |
| MS=ms76119667 |
| openai-domain-verification=dv-s9aolovQyhvHJOdgN6rH1pR9 |
| v=spf1 ip4:62.242.12.184 ip4:194.255.110.227 ip4:217.33.210.75 ip4:188.244.67.230 ip4:3.123.206.219 ip4:52.157.180.94 ip4:18.168.51.200 ip4:40.114.244.95 ip4:185.163.189.13 ip4:185.163.189.17 ip4:18.168.140.58 ip4:148.59.101.17 include:spf.hostnordic.com include:spf.comendosystems.com include:_spf.salesforce.com include:_spf.paychex.eu include:spf.protection.outlook.com -all |
| Policy | Record (mth.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:62.242.12.184 ip4:194.255.110.227 ip4:217.33.210.75 ip4:188.244.67.230 ip4:3.123.206.219 ip4:52.157.180.94 ip4:18.168.51.200 ip4:40.114.244.95 ip4:185.163.189.13 ip4:185.163.189.17 ip4:18.168.140.58 ip4:148.59.101.17 include:spf.hostnordic.com include:spf.comendosystems.com include:_spf.salesforce.com include:_spf.paychex.eu include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.mth.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www CNAME | mth.dk (all on mth.dk) → 185.20.204.81 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u276253.wl004.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u276253.wl004.sendgrid.net | 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: 10/10 · policy: -all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092701 |
| Primary NS (MNAME) | ns.dandomain.dk |
| Responsible (RNAME) | hostmaster@dandomain.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 1996-11-29 |
| Expires | 2028-12-31 (804d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 08:28:29 shown | 1222ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-26 08:05:49 | 1445ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-25 07:49:32 | 865ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-19 05:29:10 | 1269ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-12 03:49:38 | 1086ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-13 10:35:48 | 1108ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-03 10:18:51 | 716ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 17:15:32 | 1037ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-25 11:40:15 | 1150ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 23:21:45 | 1259ms | 2 NS 1 A 4 MX | 🔒 Secure |