mctag.dk DNS records

🖥️ Nameservers2 records 97ms

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 95ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.83	3600s	webcluster1.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 96ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mctag-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::7 2a01:111:f403:ca04::d 2a01:111:f403:ca09::e 52.101.68.16 52.101.68.3 52.101.73.28 52.101.73.4	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.99.204.184
🔶 Autoconfig	46.30.213.83

🔷 AAAA Records (IPv6)1 records 87ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:9c:baff:d762:d4cd	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 200ms

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

📝 TXT Records4 records 493ms

TXT Record
google-site-verification=St-q8iPjzbXAqI372AYiLmHGYKuf3IzAHgMZyOVSXno
MS=15E11B0E2DBD25E00BBEB73CDE2174248B70DABA
MS=ms21373678
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.mctag.dk)
p=reject	v=DMARC1; p=reject; pct=100

📬 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)

🔐 DNSSEC289ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081801
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

97ms

A

95ms

MX

96ms

AAAA

87ms

TXT

493ms

CAA

74ms

HTTPS

105ms

TLSA

207ms

SOA

0ms

MTA-STS

114ms

DNSSEC

289ms

SRV

200ms

Total

3604ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-18 23:05:52	3604ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-05 20:00:42	1411ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 14:46:57	2151ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 12:15:39	836ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 02:39:37	1729ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 05:19:33	3437ms	2 NS 1 A 1 MX	🔒 Secure	View