gumbo.dk is a .dk domain served by 2 nameservers (ben.ns.cloudflare.com, ingrid.ns.cloudflare.com). It was registered on 28 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.79 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.15.79 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.161.244 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 100.88.164.3 |
| 🔶 Autoconfig | 100.88.164.3 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:f4f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:a1f4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.15.79,172.67.161.244 ech=AEX+DQBBVwAgACCBCNNAZWIKyDPkMVYyz7/F3Nb7N7PkysrTkrBhYUO0TwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:f4f,2606:4700:3036::ac43:a1f4 |
| TXT Record |
|---|
| protonmail-verification=4fd33062a4de31c62bf1c2117e29e2db30f55950 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (gumbo.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.gumbo.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | 104.21.15.79 172.67.161.244 2606:4700:3030::6815:f4f 2606:4700:3036::ac43:a1f4 (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 |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416434446 |
| Primary NS (MNAME) | ben.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 | 2023-11-28 |
| Expires | 2026-11-27 (39d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 12:15:21 | 1981ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-03 19:17:31 | 507ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-03 01:18:05 shown | 2166ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-01 01:01:28 | 916ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-27 00:23:52 | 755ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-25 17:22:46 | 841ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-24 16:58:46 | 892ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-23 16:15:10 | 924ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-17 16:47:10 | 1057ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-10 16:03:24 | 1316ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-31 13:52:21 | 3477ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-28 11:32:21 | 975ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-28 07:13:12 | 662ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-27 07:01:41 | 879ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 14:37:46 | 761ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-03 23:34:17 | 1181ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-26 21:36:29 | 9559ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-24 20:19:24 | 10148ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-10 16:23:08 | 33738ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-02 15:10:04 | 5675ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-26 09:41:00 | 2841ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 10:37:08 | 937ms | 2 NS 2 A 2 MX | 🔓 Insecure |