tu.dk DNS records

🖥️ Nameservers2 records 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.scannet2.dk	185.25.141.9 2a02:2339:4006:10d::4171:4171	ns1.scannet.dk ns1.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.scannet2.dk	2a02:2339:1:112:0:5:1:b11 91.197.248.72	ns2.scannet.dk ns2.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.150.1.1	3600s	—	AS16509	Amazon.com, Inc.	216.150.1.0/24	🇺🇸 United States	—

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tu-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::c 2a01:111:f403:ca04::f 2a01:111:f403:ca09::8 52.101.68.16 52.101.68.3 52.101.73.11 52.101.73.26	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 60ms

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

📝 TXT Records2 records 138ms

TXT Record
MS=ms85798589
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.tu.dk)
p=reject	v=DMARC1;p=reject;pct=100;rua=mailto:dmarc@jp-nielsen.dk;ruf=mailto:dmarc@jp-nielsen.dk;ri=86400;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)

🔐 DNSSEC84ms

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

🏷️ SOA0ms

Field	Value
Serial	2026070603
Primary NS (MNAME)	ns.scannet2.dk
Responsible (RNAME)	hostmaster@scannet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 RegistrationWHOIS fetched 2026-07-06 22:38:11

Field	Value
Registrar	Eurodns S.A
Registered	1997-07-09
Expires	2026-09-30 (24d)

📋 WHOIS

⏱️ Lookup Timing

NS

33ms

A

37ms

MX

41ms

AAAA

43ms

TXT

138ms

CAA

49ms

HTTPS

51ms

TLSA

177ms

SOA

0ms

MTA-STS

52ms

DNSSEC

84ms

SRV

60ms

Total

677ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 23:57:52	677ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 22:36:08	2208ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 12:39:27	1210ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 21:11:51	910ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 19:15:28	778ms	2 NS 1 A 1 MX	🔒 Secure	View