htmusik.dk is a .dk domain served by 2 nameservers (howard.ns.cloudflare.com, sarah.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.78.236 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.notahero.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.78.236 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.138.108 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.notahero.dk | 91.98.195.209 | mail.notahero.dk | AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.138.108 |
| 🔶 Autoconfig | 172.67.138.108 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:4eec | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:8a6c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.78.236,172.67.138.108 ech=AEX+DQBBJAAgACCTuwGZ5klhCDps6fSZeh/rhFGvB6eMroxS34GSMc3LBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4eec,2606:4700:3033::ac43:8a6c |
| TXT Record |
|---|
| google-site-verification=iPDzYgN0xvhZt8pq941bgmC0xUkNk4HnI7dQPbWW_84 |
| v=spf1 mx a:mail.notahero.dk ip4:91.98.195.209 -all |
| Policy | Record (htmusik.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a:mail.notahero.dk ip4:91.98.195.209 -all |
| Policy | Record (_dmarc.htmusik.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:mads@htmusik.dk; ruf=mailto:mads@htmusik.dk; rf=afrf; sp=quarantine; fo=1; pct=100; adkim=s; aspf=s |
| www | 104.21.78.236 172.67.138.108 2606:4700:3030::6815:4eec 2606:4700:3033::ac43:8a6c (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.htmusik.dk | ETQJFgNy36_3uhIza0esnmUzPs2dOWey9WudjZdxyHE |
| TXT | _acme-challenge.htmusik.dk | IMIfguH3aeBnYqP5QIVpndIicuTCENhzSuyRFSFKOtw |
| 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 | 2415643648 |
| Primary NS (MNAME) | howard.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 16:48:20 | 613ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 02:28:47 | 845ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 01:51:20 | 1169ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 13:01:44 shown | 755ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-08 08:38:44 | 1936ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 11:45:08 | 746ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-26 14:51:48 | 17002ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-24 14:08:57 | 8847ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-09 03:01:54 | 1893ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 09:09:23 | 987ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-17 12:56:00 | 984ms | 2 NS 2 A 1 MX | 🔓 Insecure |