duf.dk DNS records

🖥️ Nameservers2 records 42ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.46	3600s	vm1440.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	90s	duf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::f 2a01:111:f403:ca09::c 2a01:111:f403:ca48::a 52.101.68.0 52.101.68.5 52.101.73.1 52.101.73.145	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 103ms

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

📝 TXT Records7 records 138ms

TXT Record
1ppzs6ckmtpyn3ynzh2wcdrd9rdmg0x5
apple-domain-verification=FCB0MfyaN9YjvQU1
google-site-verification=pWtYPnDwOFDwFo5sO3EirAeu9XTbD79TAlJ0svpuMbk
klaviyo-site-verification=V9cAZ4
MS=ms70061798
openai-domain-verification=dv-SZw3rf9xgbD1Ly4JUyqNgoLz
v=spf1 include:spf.protection.outlook.com include:spfrerouting.xink.io ip4:94.137.135.220 ip4:94.137.135.221 ip4:87.116.2.93 ip4:178.72.21.186 ip4:178.72.21.222 include:spf.mandrillapp.com include:web.shared.mysmtp.com -all

✉️ SPF

Policy	Record (duf.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spfrerouting.xink.io ip4:94.137.135.220 ip4:94.137.135.221 ip4:87.116.2.93 ip4:178.72.21.186 ip4:178.72.21.222 include:spf.mandrillapp.com include:web.shared.mysmtp.com -all

📨 DMARC

Policy	Record (_dmarc.duf.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)

🔐 DNSSEC90ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081301
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

42ms

A

35ms

MX

31ms

AAAA

35ms

TXT

138ms

CAA

42ms

HTTPS

39ms

TLSA

604ms

SOA

0ms

MTA-STS

53ms

DNSSEC

90ms

SRV

103ms

Total

1125ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 00:43:57	1125ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 02:52:39	9619ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 01:49:07	9243ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-10 05:47:59	1741ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 22:36:02	809ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 07:12:28	1096ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 04:55:37	749ms	2 NS 1 A 1 MX	🔒 Secure	View