heimdallr.dk is a .dk domain served by 2 nameservers (kirk.ns.cloudflare.com, olga.ns.cloudflare.com). It was registered on 27 November 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.48.112 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route1.mx.cloudflare.net, route3.mx.cloudflare.net and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.48.112 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.150.180 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:3070 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:96b4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.48.112,172.67.150.180 ech=AEX+DQBBbQAgACDqksenBBiusyCR06sWXbql734AMsSeA6jXWEo1eY9vLgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:3070,2606:4700:3035::ac43:96b4 |
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (heimdallr.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (_dmarc.heimdallr.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:455d2be819724db88c207a86f698db03@dmarc-reports.cloudflare.net |
| www | 104.21.48.112 172.67.150.180 2606:4700:3034::6815:3070 2606:4700:3035::ac43:96b4 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network heimdallr.dk: 104.21.48.112 172.67.150.180 2606:4700:3034::6815:3070 2606:4700:3035::ac43:96b4 (AS13335) www.heimdallr.dk: 104.21.48.112 172.67.150.180 2606:4700:3034::6815:3070 2606:4700:3035::ac43:96b4 (AS13335) |
| 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: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416808612 |
| Primary NS (MNAME) | kirk.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Netsite A/S |
| Registered | 2025-11-27 |
| Expires | 2026-11-26 (36d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 10:14:54 shown | 2779ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-01 06:59:57 | 1494ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-25 05:25:36 | 1515ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-17 05:02:46 | 1746ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-07 01:42:22 | 2869ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-28 04:00:17 | 958ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-20 10:52:49 | 2895ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-19 06:12:25 | 1929ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-16 09:37:22 | 25782ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-27 07:59:26 | 2775ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-03 15:07:13 | 1007ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-27 23:03:39 | 1608ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-20 00:11:26 | 1233ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 11:22:54 | 1206ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 11:10:38 | 1534ms | 2 NS 2 A 3 MX | 🔓 Insecure |