grouponmail.dk is a .dk domain served by 3 nameservers (blue.foundationdns.com, blue.foundationdns.net, blue.foundationdns.org). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by .. 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 |
|---|---|---|---|---|---|---|---|
| 104.18.0.52 | 300s | — | AS13335 | — | — | — | — |
| 104.18.1.52 | 300s | — | AS13335 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.18.0.52 |
| 🔶 Autoconfig | 104.18.0.52 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700::6812:134 | 300s | — | AS13335 | — | — | — | — |
| 2606:4700::6812:34 | 300s | — | AS13335 | — | — | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.18.0.52,104.18.1.52 ipv6hint=2606:4700::6812:34,2606:4700::6812:134 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (grouponmail.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.grouponmail.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:dmarc_rua@groupon.com; ruf=mailto:dmarc_ruf@groupon.com; rf=afrf; pct=100 |
| www | 104.18.0.52 104.18.1.52 2606:4700::6812:134 2606:4700::6812:34 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network grouponmail.dk: 104.18.0.52 104.18.1.52 2606:4700::6812:134 2606:4700::6812:34 (AS13335) www.grouponmail.dk: 104.18.0.52 104.18.1.52 2606:4700::6812:134 2606:4700::6812:34 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 0/10 · 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 | 2407586110 |
| Primary NS (MNAME) | blue.foundationdns.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 08:28:24 | 646ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 02:50:22 | 630ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 02:35:23 | 704ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-20 10:43:53 | 678ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 09:17:35 | 854ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-28 12:23:20 | 2930ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-22 01:57:58 | 10005ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-20 18:27:56 | 1069ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-01 16:25:20 | 993ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 13:50:56 | 1102ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-22 13:25:00 | 1597ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 07:41:16 shown | 792ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 00:55:08 | 568ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 10:42:46 | 781ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 10:38:27 | 924ms | 3 NS 2 A 0 MX | 🔓 Insecure |