mbertelsen.dk is a .dk domain served by 2 nameservers (dante.ns.cloudflare.com, frida.ns.cloudflare.com). It was registered on 4 April 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.78.204 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by webhotel12.webhosting.dk. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.78.204 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.137.115 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | webhotel12.webhosting.dk | 157.250.160.32 | webhotel12.webhosting.dk | AS3342 Cibicom A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.137.115 |
| 🔶 Autoconfig | 172.67.137.115 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a06:98c1:3120::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| 2a06:98c1:3121::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.78.204,172.67.137.115 ech=AEX+DQBB6AAgACAAc/Dneg5msvZ4wUhHBIt1hR3G+y0gA9ldTKGE83yBTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:8973,2606:4700:3034::6815:4ecc |
| www | 104.21.78.204 172.67.137.115 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network mbertelsen.dk: 188.114.96.1 188.114.97.1 2606:4700:3033::ac43:8973 2606:4700:3034::6815:4ecc (AS13335) www.mbertelsen.dk: 104.21.78.204 172.67.137.115 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.mbertelsen.dk | 2DbD607cZ6_8q69u4nMs29tC12XShmdVCYHfPEkINFw |
| TXT | _acme-challenge.mbertelsen.dk | L5HhaBmPFLH93K2axaMYWwCKKeY1LXuP0B00usHKcwQ |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.webhotel12.webhosting.dk | DANE-TA · SPKI · SHA-256 | 55ADE8CA0305C103E1438FF1EF2B3DA4… |
| SMTP _25._tcp.webhotel12.webhosting.dk | DANE-EE · SPKI · SHA-256 | 55ADE8CA0305C103E1438FF1EF2B3DA4… |
| 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 | 2417448764 |
| Primary NS (MNAME) | dante.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 | 2021-04-04 |
| Expires | 2027-04-30 (191d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 14:39:41 | 504ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-14 09:34:32 shown | 420ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-04 18:27:02 | 1567ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-03 18:24:08 | 525ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-30 00:40:45 | 609ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-16 08:09:19 | 1226ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-03 10:44:32 | 1024ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 21:29:38 | 1997ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 23:22:16 | 883ms | 2 NS 2 A 1 MX | 🔓 Insecure |