goodmask.dk is a .dk domain served by 5 nameservers (ns.gransy.com, ns2.gransy.com, ns3.gransy.com and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.78.104.3 is hosted by CASABLANCA INT a.s. (AS15685) in Czechia. Mail is handled by ASPMX.L.GOOGLE.COM, ALT1.ASPMX.L.GOOGLE.COM and 4 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 77.78.104.3 | 900s | yurika.gransy.com | AS15685 | CASABLANCA INT a.s. | 77.78.96.0/20 | 🇨🇿 Czechia | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | goodmask.dk → 77.78.104.3 |
| 🔶 Autoconfig | goodmask.dk → 77.78.104.3 |
| TXT Record |
|---|
| google-site-verification=Fm-95aJsh0mH2hM3ZSHLxlcBluVXqiMlxP3IfyM4QZY |
| www CNAME | goodmask.dk (all on goodmask.dk) → 77.78.104.3 (AS15685) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 4 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| mail._domainkey.mail.gransy.com | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.goodmask.dk | goodmask.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2783282862 |
| Primary NS (MNAME) | ns.gransy.com |
| Responsible (RNAME) | root@gransy.com |
| Refresh | 86400s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 15:27:55 shown | 4014ms | 5 NS 1 A 6 MX | 🔓 Insecure |
| 2026-08-12 14:52:01 | 35192ms | 5 NS 1 A 6 MX | 🔓 Insecure |
| 2026-07-06 22:00:07 | 11972ms | 5 NS 1 A 6 MX | 🔓 Insecure |
| 2026-07-03 05:09:48 | 3328ms | 5 NS 1 A 6 MX | 🔓 Insecure |
| 2026-06-23 12:02:19 | 4305ms | 5 NS 1 A 6 MX | 🔓 Insecure |
| 2026-06-17 10:31:57 | 5563ms | 5 NS 1 A 6 MX | ⚠️ Bogus |