tietgenonline.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, micah.ns.cloudflare.com). It was registered on 28 November 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.32.185 | — | — | AS13335 | — | — | — | — |
| 172.67.153.175 | — | — | AS13335 | — | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.153.175 |
| 🔶 Autoconfig | 104.21.32.185 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:99af | — | — | AS13335 | — | — | — | — |
| 2606:4700:3037::6815:20b9 | — | — | AS13335 | — | — | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.32.185,172.67.153.175 ech=AEX+DQBBegAgACBX2r4gu402lfQJBDzNPRD+BImzp76oMzFR73R+6TBCWwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:99af,2606:4700:3037::6815:20b9 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (tietgenonline.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.tietgenonline.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:40b3876c20534832bc28e519fbf2b6f8@dmarc-reports.cloudflare.net; |
| www | 104.21.32.185 172.67.153.175 2606:4700:3036::ac43:99af 2606:4700:3037::6815:20b9 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network tietgenonline.dk: 104.21.32.185 172.67.153.175 2606:4700:3036::ac43:99af 2606:4700:3037::6815:20b9 (AS13335) www.tietgenonline.dk: 104.21.32.185 172.67.153.175 2606:4700:3036::ac43:99af 2606:4700:3037::6815:20b9 (AS13335) |
| 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 |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2405442607 |
| Primary NS (MNAME) | lucy.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 | 2014-11-28 |
| Expires | 2026-11-30 (34d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 23:01:36 | 424ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-15 18:53:42 | 650ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-27 19:38:17 | 559ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-26 00:11:12 | 636ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-14 08:55:51 | 1350ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-12 09:24:12 | 1297ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-07 06:11:06 | 684ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-27 18:24:50 | 2476ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-18 01:29:45 | 4823ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-08 14:41:28 | 986ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-17 06:20:04 | 10690ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-25 07:08:25 | 827ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-22 13:09:14 | 895ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-20 07:11:21 | 629ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-19 11:03:43 | 817ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-19 06:21:44 | 826ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-18 01:42:29 shown | 2231ms | 2 NS 2 A 0 MX | 🔒 Secure |