securityuser.dk is a .dk domain served by 2 nameservers (betty.ns.cloudflare.com, frank.ns.cloudflare.com). It was registered on 30 May 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.93.185 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.armedia.se, mailrelay1.netelite.net and 1 more. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.93.185 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.213.253 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.armedia.se | — | — | — |
| 99 | 300s | mailrelay1.netelite.net | — | — | — |
| 99 | 300s | mailrelay2.netelite.net | — | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:d5fd | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:5db9 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.93.185,172.67.213.253 ech=AEX+DQBB4wAgACDBv3avC4ORfNkdwsPHnU3wmvUKzIgyo/PiZ5kmmP0uPQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d5fd,2606:4700:3037::6815:5db9 |
| TXT Record |
|---|
| v=spf1 mx a ip4:213.115.62.25 ip4:213.115.62.26 include:netelite.se ~all |
| Policy | Record (securityuser.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a ip4:213.115.62.25 ip4:213.115.62.26 include:netelite.se ~all |
| www | 104.21.93.185 172.67.213.253 2606:4700:3030::ac43:d5fd 2606:4700:3037::6815:5db9 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network securityuser.dk: 104.21.93.185 172.67.213.253 2606:4700:3030::ac43:d5fd 2606:4700:3037::6815:5db9 (AS13335) www.securityuser.dk: 104.21.93.185 172.67.213.253 2606:4700:3030::ac43:d5fd 2606:4700:3037::6815:5db9 (AS13335) |
| Wildcard | No |
DNS lookups: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.securityuser.dk | 8kKRs6j1vEW5ZLBGQ6QIvnPMACHcD-mpRoXhqetxVek |
| TXT | _acme-challenge.securityuser.dk | dIS0ZdTynBQn_ToRJsh95X_HDLJgd4w0lr_RaRWhX54 |
| 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 | 2417115842 |
| Primary NS (MNAME) | betty.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Abion AB |
| Registered | 2008-05-30 |
| Expires | 2027-05-31 (224d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 07:19:33 shown | 777ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-26 21:12:49 | 608ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-08 15:57:51 | 2100ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-13 12:22:39 | 4606ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-07 04:55:54 | 1092ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 14:06:16 | 2752ms | 2 NS 2 A 3 MX | 🔓 Insecure |