mtrx.dk is a .dk domain served by 2 nameservers (emily.ns.cloudflare.com, tony.ns.cloudflare.com). It was registered on 28 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.51.115 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.51.115 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.179.132 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3037::6815:3373 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:b384 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.51.115,172.67.179.132 ech=AEX+DQBBawAgACC//gmomLGEDblK4CWPAzKxT5TjTzdIwMEN3FZWimIQFQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:3373,2606:4700:3037::ac43:b384 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (mtrx.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.mtrx.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject;sp=reject;pct=100; fo=1; ri=3600; rua=mailto:e43edf71cbeb923@rep.dmarcanalyzer.com; ruf=mailto:e43edf71cbeb923@for.dmarcanalyzer.com;adkim=s;aspf=s; |
| www | 104.21.51.115 172.67.179.132 2606:4700:3037::6815:3373 2606:4700:3037::ac43:b384 (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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2407102684 |
| Primary NS (MNAME) | emily.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | 101domain GRS Limited |
| Registered | 2019-10-28 |
| Expires | 2026-10-31 (10d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 00:31:23 | 1129ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 09:55:10 | 515ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-23 13:42:18 | 696ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-19 06:47:48 | 1203ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-16 07:37:40 | 1232ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-13 15:26:55 | 1513ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-27 16:26:08 | 496ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-08 01:26:06 | 1099ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-19 09:19:34 | 9768ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-12 05:56:38 | 1524ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-30 17:18:12 shown | 784ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 16:50:39 | 2034ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 17:05:35 | 1557ms | 2 NS 2 A 0 MX | 🔓 Insecure |