co-ta.dk DNS records

🖥️ Nameservers2 records 74ms

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 106ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.150	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 75ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cota-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09:: 2a01:111:f403:ca09::f 2a01:111:f403:ca38::8 52.101.68.5 52.101.73.11 52.101.73.145 52.101.73.28	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.8

🔷 AAAA Records (IPv6)1 records 91ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:b7:9c3c:868e:aa78	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 207ms

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

📝 TXT Records1 records 314ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (co-ta.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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)

🔐 DNSSEC230ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082801
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

74ms

A

106ms

MX

75ms

AAAA

91ms

TXT

314ms

CAA

102ms

HTTPS

111ms

TLSA

442ms

SOA

0ms

MTA-STS

118ms

DNSSEC

230ms

SRV

207ms

Total

1957ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 06:05:33	1957ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 04:56:50	9046ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 14:29:32	4493ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 01:25:05	1310ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 00:36:17	855ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:21:14	65535ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:33:45	1633ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:30:17	602ms	2 NS 1 A 1 MX	🔒 Secure	View