cobio.dk

Records from scan: 2026-10-13 08:15:31 · 884ms total · last checked 2026-10-16 10:51 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

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. Mail is handled by cobio-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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.

🖥️ Nameservers#

2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 37ms

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	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cobio-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::d 2a01:111:f403:ca21::a 2a01:111:f403:ca3c::6 52.101.209.28 52.101.68.12 52.101.73.120 52.101.73.123	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.136
🔶 Autoconfig	178.72.21.228

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 154ms

TXT Record
v=spf1 ip4:178.72.21.228 ip4:77.66.10.196 include:spf.protection.outlook.com include:mailmailmail.net -all

✉️ SPF#

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

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-13 08:15:31

www	178.72.21.228 (AS3342) (address records, no CNAME)
www vs bare domain	Same network cobio.dk: 178.72.21.228 (AS3342) www.cobio.dk: 178.72.21.228 (AS3342)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

55ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

28ms

Field	Value
Serial	2026101001
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-08 20:28:02

Field	Value
Registrar	ONE.COM A/S
Registered	2007-04-19
Expires	2027-04-30 (195d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

37ms

AAAA

44ms

TXT

154ms

CAA

43ms

HTTPS

36ms

TLSA

490ms

SOA

28ms

MTA-STS

49ms

DNSSEC

55ms

SRV

58ms

Total

884ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 08:15:31 shown	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	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