cosma.dk DNS records

🖥️ Nameservers2 records 85ms

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 Records1 records 57ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.12	3600s	webcluster1.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cosma-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::f 2a01:111:f403:ca09::d 2a01:111:f403:ca48::8 52.101.68.27 52.101.73.153 52.101.73.30 52.101.73.6	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 52.98.231.248

🔷 AAAA Records (IPv6)1 records 89ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:64:5cdd:d4c7:ad06	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 136ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 223ms

TXT Record
MS=ms44254161
v=spf1 a mx include:spf.protection.outlook.com include:_custspf.one.com include:_spf.mlsend.com ~all

✉️ SPF

Policy	Record (cosma.dk)
~all (soft fail)	v=spf1 a mx include:spf.protection.outlook.com include:_custspf.one.com include:_spf.mlsend.com ~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

🔗 TLSA / DANE

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

🔐 DNSSEC178ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082105
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

85ms

A

57ms

MX

62ms

AAAA

89ms

TXT

223ms

CAA

77ms

HTTPS

81ms

TLSA

139ms

SOA

0ms

MTA-STS

100ms

DNSSEC

178ms

SRV

136ms

Total

1722ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-22 11:25:58	1722ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 17:11:46	9241ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 12:57:10	1209ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 23:23:59	3246ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:56:06	1742ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:31:20	675ms	2 NS 1 A 1 MX	🔒 Secure	View