mdj.dk is a .dk domain served by 2 nameservers (burt.ns.cloudflare.com, lina.ns.cloudflare.com). It was registered on 3 September 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.95.146 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.skaersoe.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.95.146 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.170.121 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.skaersoe.com | 5.186.54.3 | 5.186.54.3.static.fibianet.dk | AS44869 FIBIA P/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:5f92 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:aa79 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.95.146,172.67.170.121 ech=AEX+DQBBFwAgACC6H5SDOczFGq+mpe96GQKfVgZG4Z/W/uaf7nkzp+yCcAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:5f92,2606:4700:3033::ac43:aa79 |
| TXT Record |
|---|
| apple-domain=vr9xPto8YfU2XijU |
| have-i-been-pwned-verification=dweb_pdm3ea7idxnob6avfjtomzmw |
| v=spf1 mx a:mail.skaersoe.com a:5.186.54.3.static.fibianet.dk include:skaersoe.com ip4:5.186.54.3 ~all |
| Policy | Record (mdj.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a:mail.skaersoe.com a:5.186.54.3.static.fibianet.dk include:skaersoe.com ip4:5.186.54.3 ~all |
| Policy | Record (_dmarc.mdj.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:b597d0f82aba430f8e4019a87aadf332@dmarc-reports.cloudflare.net |
| www | 104.21.95.146 172.67.170.121 2606:4700:3032::6815:5f92 2606:4700:3033::ac43:aa79 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 8/10 · policy: ~all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2415022178 |
| Primary NS (MNAME) | burt.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1998-09-03 |
| Expires | 2027-11-30 (408d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 13:05:33 | 1018ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-09 10:01:32 | 862ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-08 09:29:43 | 493ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-07 04:02:39 | 1621ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-02 22:25:10 | 2441ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-30 22:15:44 | 788ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 06:08:24 | 615ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-16 21:09:14 shown | 1266ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-26 12:05:15 | 9630ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-19 20:50:37 | 2623ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-08 10:28:21 | 1296ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-27 03:32:00 | 1675ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-18 03:36:07 | 890ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-03 21:42:49 | 11064ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-18 07:03:01 | 3765ms | 2 NS 2 A 1 MX | ⚠️ Bogus |