nbt.dk DNS records

🖥️ Nameservers2 records 52ms

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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
35.187.160.50	3600s	50.160.187.35.bc.googleusercontent.com	AS396982	Google LLC	35.184.0.0/13	🇧🇪 Belgium	Brussels

📧 MX Records1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	nbt-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::7 2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 52.101.209.153 52.101.68.39 52.101.73.12 52.101.73.30	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am7pr05cu00306.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

📝 TXT Records1 records 138ms

TXT Record
v=spf1 ip4:195.249.122.42 ip4:86.58.135.69 include:servers.mcsv.net include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (nbt.dk)
-all (hard fail)	v=spf1 ip4:195.249.122.42 ip4:86.58.135.69 include:servers.mcsv.net include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.nbt.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:kw4mtjma@ag.eu.dmarcian.com; ruf=mailto:kw4mtjma@fr.eu.dmarcian.com; fo=1;

📬 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)

🔐 DNSSEC94ms

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

🏷️ SOA0ms

Field	Value
Serial	2025111101
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

52ms

A

49ms

MX

34ms

AAAA

69ms

TXT

138ms

CAA

38ms

HTTPS

51ms

TLSA

368ms

SOA

0ms

MTA-STS

70ms

DNSSEC

94ms

SRV

70ms

Total

1003ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 07:00:01	1003ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 04:13:49	25282ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 05:33:34	2416ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 10:20:54	841ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 05:52:56	1167ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 08:07:08	1694ms	2 NS 1 A 1 MX	🔒 Secure	View