linneman.dk is a .dk domain served by 2 nameservers (aryanna.ns.cloudflare.com, nicolas.ns.cloudflare.com). It was registered on 10 July 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. We saw it become registrar-handled on 12 October 2026, when it moved from direct registration at Punktum to Domænehajen ApS. Its website address 104.21.81.214 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by post.linneman.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 |
|---|---|---|---|---|---|---|---|
| 104.21.81.214 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.147.207 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 5 | 300s | post.linneman.dk | 91.226.145.155 | post.linneman.dk | AS216275 Netnoerden ApS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:93cf | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:51d6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.81.214,172.67.147.207 ech=AEX+DQBBgAAgACCHmUZFNk/oVmuJfIlYGyainxJpyyl6hzbatl/AMheaRQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:93cf,2606:4700:3036::6815:51d6 |
| TXT Record |
|---|
| v=spf1 a:post.linneman.dk a:mail-3.linneman.dk ip4:91.226.145.155/32 -all |
| Policy | Record (linneman.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:post.linneman.dk a:mail-3.linneman.dk ip4:91.226.145.155/32 -all |
| Policy | Record (_dmarc.linneman.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:postmaster@linneman.dk |
| www | Exists, no address |
| www vs bare domain | www does not resolve linneman.dk: 104.21.81.214 172.67.147.207 2606:4700:3033::ac43:93cf 2606:4700:3036::6815:51d6 (AS13335) (all like this)www.linneman.dk: no address |
| 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 |
| 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| 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 | 2416456957 |
| Primary NS (MNAME) | aryanna.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Domænehajen ApS |
| Registered | 2000-07-10 |
| Expires | 2027-09-30 (344d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 12:59:22 | 2225ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-12 07:52:14 | 418ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-11 05:52:24 | 4469ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-08 12:07:20 | 4219ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-04 10:06:07 | 736ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-03 10:04:44 shown | 774ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-11 09:41:23 | 1811ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-29 12:10:14 | 2804ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-16 00:53:33 | 1168ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-13 07:53:59 | 16792ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-09 05:34:12 | 3144ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-05 22:42:43 | 2878ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-14 17:20:40 | 1042ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-08 19:32:07 | 1177ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 11:52:12 | 10000ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 00:06:34 | 974ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 20:22:52 | 897ms | 2 NS 2 A 1 MX | 🔓 Insecure |