cobio.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 April 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.72.21.228 is hosted by Cibicom A/S (AS3342) in Denmark. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 178.72.21.228 | 600s | typo310.t3hot.dk | AS3342 | Cibicom A/S | 178.72.16.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.99.204.120 |
| 🔶 Autoconfig | 178.72.21.228 |
| TXT Record |
|---|
| v=spf1 ip4:178.72.21.228 ip4:77.66.10.196 include:spf.protection.outlook.com include:mailmailmail.net -all |
| Policy | Record (cobio.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:178.72.21.228 ip4:77.66.10.196 include:spf.protection.outlook.com include:mailmailmail.net -all |
| www | 178.72.21.228 (AS3342) (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: 2/10 · 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 | 2026061001 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2007-04-19 |
| Expires | 2027-04-30 (194d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 08:15:31 | 884ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 08:02:45 | 1416ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-11 06:53:31 | 1194ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 11:11:45 | 748ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 17:18:48 | 1488ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 17:16:16 | 804ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 21:15:43 | 1125ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-19 04:36:53 | 5973ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 12:24:57 | 1318ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 15:51:25 | 17174ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-12 18:32:04 | 5369ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 07:38:25 | 5808ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-10 00:17:50 | 5918ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 00:27:55 | 1186ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 05:15:17 | 891ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 14:28:15 shown | 600ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-23 05:29:00 | 734ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 21:36:52 | 804ms | 2 NS 1 A 1 MX | 🔒 Secure |