def.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.50.2.85 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk. 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 |
|---|---|---|---|---|---|---|---|
| 20.50.2.85 | 360s | — | AS8075 | Microsoft Corporation | 20.48.0.0/12 | 🇳🇱 The Netherlands | Amsterdam |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| 🔶 Autoconfig | 20.50.2.85 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 1 | 0 | 443 | autodiscover.outlook.com |
| _sipfederationtls._tcp | 3 | 0 | 5061 | sip.def.dk |
| TXT Record |
|---|
| _globalsign-domain-verification=QeQeii33g4wDOzYfPpUnOFGoiA56NFvlmSVqceD3Cq |
| 6j/ZhET0VktmpFUIqlw9kkyC37ICg40sqolkXwf0DcWwdI/O7KGB+pGiE0+lH4WM3XiIE7YorZ9E0LRIM+tZQQ== |
| 7m3z0z3td8hhmktvbshmpqm82fgr62zv |
| CEFEA6FD316F43F467BF5FFF0AA74E991E402E7015C361D19D7BC316A87C1DC |
| CEFEA6FD316F43F467BF5FFF0AA74E991E402E7015C361D19D7BC316A87C1DC9 |
| Dansk El-Forbund |
| MS=ms15165797 |
| MS=ms58999070 |
| spycloud-domain-verification=30161b34-3cdd-4877-bb84-33ad5688bc88 |
| v=spf1 ip4:185.193.121.198 ip4:195.215.242.10 ip4:80.198.54.16 ip4:195.215.242.119 ip4:213.199.154.234 ip4:195.215.242.119 ip4:195.215.242.37 ip4:195.215.238.186 ip4:86.58.141.0/24 include:spf.protection.outlook.com include:_spf.centerasecurity.dk include:spf.dynect.net include:_smtpcluster.jay.net include:servers.mcsv.net include:spf.topdesk.net -all |
| Policy | Record (def.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:185.193.121.198 ip4:195.215.242.10 ip4:80.198.54.16 ip4:195.215.242.119 ip4:213.199.154.234 ip4:195.215.242.119 ip4:195.215.242.37 ip4:195.215.238.186 ip4:86.58.141.0/24 include:spf.protection.outlook.com include:_spf.centerasecurity.dk include:spf.dynect.net include:_smtpcluster.jay.net include:servers.mcsv.net include:spf.topdesk.net -all |
| Policy | Record (_dmarc.def.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:65d88b1f0dfdd@dmarc-dk.centerasecurity.com, mailto:dmarc_agg@vali.email |
| www | 20.50.2.85 (AS8075) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 |
|---|---|---|
| k1 | dkim.mcsv.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: 6/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026093001 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 12:51:00 shown | 444ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 20:57:22 | 830ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 08:14:26 | 549ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 19:23:55 | 586ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-25 19:38:17 | 777ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-09 15:56:51 | 1079ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-04 14:52:46 | 4060ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 06:28:32 | 721ms | 2 NS 1 A 2 MX | ⚠️ Bogus |
| 2026-06-21 02:33:35 | 638ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 01:42:29 | 2726ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 01:30:33 | 873ms | 2 NS 1 A 2 MX | 🔒 Secure |