sgu.dk is a .dk domain served by 2 nameservers (ignat.ns.cloudflare.com, raina.ns.cloudflare.com). It was registered on 17 October 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.22.168 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod12-cph3.one.com, mx2.pub.mailpod12-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.22.168 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.205.239 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.pub.mailpod12-cph3.one.com | 104.37.34.246 | mx1.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx2.pub.mailpod12-cph3.one.com | 104.37.34.247 | mx2.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx3.pub.mailpod12-cph3.one.com | 104.37.34.248 | mx3.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx4.pub.mailpod12-cph3.one.com | 104.37.34.249 | mx4.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.22.168 |
| 🔶 Autoconfig | 104.21.22.168 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:16a8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:cdef | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.22.168,172.67.205.239 ech=AEX+DQBBjAAgACCplHqEPNoOffQumh2GKEjywYOyn3QESi6QzOVoiiuiVwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:16a8,2606:4700:3034::ac43:cdef |
| TXT Record |
|---|
| google-site-verification=x_SGff-99BXQKzbTx55kDMb310OFdvJNINXyyU5crbc |
| www | 104.21.22.168 172.67.205.239 2606:4700:3034::6815:16a8 2606:4700:3034::ac43:cdef (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 3E81C76D10E1A717F28178710EADCAA8… |
| SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 3E81C76D10E1A717F28178710EADCAA8… |
| SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 3E81C76D10E1A717F28178710EADCAA8… |
| SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 3E81C76D10E1A717F28178710EADCAA8… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2412070256 |
| Primary NS (MNAME) | ignat.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-10-17 |
| Expires | 2026-10-31 (14d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 02:36:59 | 2627ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-16 01:09:13 | 2026ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-14 23:16:50 | 513ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-12 13:00:42 | 541ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-11 12:43:10 | 2820ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-02 23:04:03 | 568ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-30 21:38:11 | 923ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-29 07:28:50 | 840ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-27 06:32:14 | 2610ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-21 16:03:08 | 1258ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-27 00:09:08 | 896ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-25 02:38:45 shown | 1604ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-14 07:47:01 | 1562ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-09 13:07:34 | 2185ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-02 03:05:05 | 1363ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-07-12 23:06:23 | 1309ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-06-19 17:46:19 | 1121ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-06-17 12:55:43 | 3288ms | 2 NS 2 A 4 MX | 🔒 Secure |