copenhagenbrains.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.191 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by v0081.dotserv.com. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 178.20.216.191 | 43200s | v0081.dotserv.com | AS21060 | Atea A/S | 178.20.216.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | v0081.dotserv.com | 178.20.216.191 | v0081.dotserv.com | AS21060 Atea A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.copenhagenbrains.dk → 178.20.216.191 |
| 🔶 Autoconfig | 178.20.216.191 |
| TXT Record |
|---|
| v=spf1 include:_spf.dotserv.com -all |
| Policy | Record (copenhagenbrains.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.dotserv.com -all |
| Policy | Record (_dmarc.copenhagenbrains.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; default |
| www | 178.20.216.191 (AS21060) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 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.
DNS lookups: 3/10 · 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 | 2026101401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 15:57:51 shown | 574ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 00:44:32 | 2776ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 06:12:42 | 652ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 17:48:57 | 912ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 11:27:33 | 589ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 18:38:48 | 749ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 21:14:20 | 765ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 14:54:12 | 728ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 08:03:53 | 1388ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 05:57:40 | 743ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:31:19 | 566ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:21:15 | 554ms | 2 NS 1 A 1 MX | 🔒 Secure |