nt-tag.dk DNS records

🖥️ Nameservers2 records 128ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 123ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.24	3600s	linux179.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 97ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	nttag-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::a 2a01:111:f403:ca04::c 2a01:111:f403:ca09::24 52.101.68.10 52.101.68.16 52.101.73.1 52.101.73.24	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as8pr05cu00300.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)

✗ No AAAA records — IPv6 not configured

🔐 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 Records5 records 336ms

TXT Record
C96cMzDxqA6nysEpLiXLwCCKKi00YclSjfbi8Ti8oIFe1tWljOTLHGoXbXFS04wtg5DomJWxfj7IvYd9EIb5dQ==
DomainVerification=JL2C7OLLXJNBEQ7KXPHY3AYJM7VFB0VZ0W6YXHD5D33WYROTS6BSMKM4HTCZN0UY
knowbe4-site-verification=12db3b27fddec6ea272e3f8d5e7c1a76
MS=ms19185994
v=spf1 include:spf.protection.outlook.com ip4:212.112.184.237 ip4:80.160.72.48/28 ip4:94.231.103.98 -all

✉️ SPF

Policy	Record (nt-tag.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:212.112.184.237 ip4:80.160.72.48/28 ip4:94.231.103.98 -all

📨 DMARC

Policy	Record (_dmarc.nt-tag.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:67335ed7d9289@dmarc-dk.centerasecurity.com;

📬 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)

🔐 DNSSEC171ms

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

🏷️ SOA0ms

Field	Value
Serial	2026030201
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

128ms

A

123ms

MX

97ms

AAAA

131ms

TXT

336ms

CAA

115ms

HTTPS

121ms

TLSA

606ms

SOA

0ms

MTA-STS

156ms

DNSSEC

171ms

SRV

136ms

Total

1491ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 06:54:04	1491ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 19:13:21	1094ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 04:18:58	3436ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 04:08:49	2926ms	2 NS 1 A 1 MX	🔒 Secure	View