zeroground.dk is a .dk domain served by 2 nameservers (norman.ns.cloudflare.com, vivienne.ns.cloudflare.com). It was registered on 27 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.87.248 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 not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.87.248 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.171.137 | 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 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:57f8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:ab89 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.87.248,172.67.171.137 ech=AEX+DQBBwQAgACCJq/98h4XBibtJpMwP+KRke6TgId8VdS0G6GYygQlfVQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:57f8,2606:4700:3037::ac43:ab89 |
| TXT Record |
|---|
| v=spf1 include:_spf.one.com include:_spf.google.com ~all |
| Policy | Record (zeroground.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.one.com include:_spf.google.com ~all |
| www | 104.21.87.248 172.67.171.137 2606:4700:3034::6815:57f8 2606:4700:3037::ac43:ab89 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network zeroground.dk: 104.21.87.248 172.67.171.137 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.zeroground.dk: 104.21.87.248 172.67.171.137 2606:4700:3034::6815:57f8 2606:4700:3037::ac43:ab89 (AS13335) |
| Wildcard | No |
DNS lookups: 2/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.zeroground.dk | 2mfrTyeFs8VXdozx1WOKs1EvSbY02Ln62t1M-KVcfPc |
| TXT | _acme-challenge.zeroground.dk | dmudBf8vxswU_s-79pqhBNgHpWl2cFMnQUG53G5kSDU |
| 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 | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2413179385 |
| Primary NS (MNAME) | norman.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 | 2011-02-27 |
| Expires | 2027-02-28 (128d) |
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 |
|---|---|---|---|
| 2026-10-21 23:27:45 | 1005ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-25 07:27:03 | 725ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-22 18:09:05 | 1104ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-15 16:30:22 | 2482ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-12 03:32:19 | 873ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-08 07:45:16 | 7361ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-27 11:59:25 | 9752ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-27 01:32:59 shown | 620ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-23 15:55:29 | 3671ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-07-08 17:24:33 | 9529ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-07-06 22:52:40 | 2244ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-24 14:24:11 | 2033ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-22 09:38:38 | 8243ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-21 21:05:58 | 1122ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:31:44 | 3189ms | 2 NS 2 A 4 MX | 🔓 Insecure |