mtrtech.dk is a .dk domain served by 2 nameservers (aaden.ns.cloudflare.com, dee.ns.cloudflare.com). It was registered on 14 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.40.6 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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.40.6 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.172.219 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:2806 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:acdb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h2" ipv4hint=104.21.40.6,172.67.172.219 ech=AEX+DQBB0AAgACAz5nfXThxh7tXyOGnXUCHwComzSF5QNIVuNfgodIu+fQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:2806,2606:4700:3037::ac43:acdb |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (mtrtech.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.mtrtech.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 | 104.21.40.6 172.67.172.219 2606:4700:3032::6815:2806 2606:4700:3037::ac43:acdb (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
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 | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2415175981 |
| Primary NS (MNAME) | aaden.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 | 2020-11-14 |
| Expires | 2026-11-30 (41d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| mtrf.dk | 101domain GRS Limited |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 22:19:54 shown | 616ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-19 15:55:09 | 2915ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-04 19:13:35 | 567ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-21 04:58:48 | 1337ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-24 14:53:53 | 2701ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-24 11:02:48 | 1182ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 11:30:09 | 551ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 14:40:04 | 3372ms | 2 NS 2 A 0 MX | 🔓 Insecure |