sualk.dk is a .dk domain served by 2 nameservers (julio.ns.cloudflare.com, mina.ns.cloudflare.com). It was registered on 3 December 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.53.184 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by sualk-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.53.184 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.216.30 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | sualk-dk.mail.protection.outlook.com | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:d81e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:35b8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.53.184,172.67.216.30 ech=AEX+DQBBKAAgACCOZsUGw1hEujRcCahEhRJJlhCYaPV6CSL0wjOIAbT3XAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d81e,2606:4700:3037::6815:35b8 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (sualk.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.sualk.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:Webmaster@sualk.dk; ruf=mailto:Webmaster@sualk.dk; adkim=r; aspf=r; rf=afrf |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve sualk.dk: 104.21.53.184 172.67.216.30 2606:4700:3030::6815:35b8 2606:4700:3036::ac43:d81e (AS13335) (all like this)www.sualk.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-sualk-dk._domainkey.wenzeljoergensen.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-sualk-dk._domainkey.wenzeljoergensen.onmicrosoft.com | 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: 1/10 · 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 | 2407827056 |
| Primary NS (MNAME) | julio.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2021-12-03 |
| Expires | 2029-12-02 (1139d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 21:47:35 | 4614ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-23 12:58:04 | 4246ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-08 20:54:54 | 11157ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 20:58:20 | 942ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 15:21:24 shown | 1258ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 00:03:54 | 1377ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 10:03:26 | 930ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:48:35 | 2823ms | 2 NS 2 A 1 MX | 🔓 Insecure |