duelco.dk DNS records

🖥️ Nameservers2 records 41ms

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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.109.52	600s	web12.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	duelco-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::20 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 52.101.68.36 52.101.68.8 52.101.73.153 52.101.73.2	mail-dbapr03cu00100.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 52.98.252.88
🔶 Autoconfig	94.231.109.52

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 140ms

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

📝 TXT Records4 records 184ms

TXT Record
4y3jnlb21f2516xl1v0zt0gcxdl79hr1
MS=ms48219270
tk7r85ykv7v136y6x5rsghmk4w13jw7r
v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com ip4:188.180.76.161 ip4:178.79.173.123 ip4:188.180.76.246 ip4:188.180.76.247 -all

✉️ SPF

Policy	Record (duelco.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com ip4:188.180.76.161 ip4:178.79.173.123 ip4:188.180.76.246 ip4:188.180.76.247 -all

📨 DMARC

Policy	Record (_dmarc.duelco.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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)

🔐 DNSSEC89ms

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

🏷️ SOA112ms

Field	Value
Serial	2024120201
Primary NS (MNAME)	ns.scannet2.dk
Responsible (RNAME)	hostmaster@scannet.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

41ms

A

39ms

MX

37ms

AAAA

35ms

TXT

184ms

CAA

88ms

HTTPS

35ms

TLSA

131ms

SOA

112ms

MTA-STS

44ms

DNSSEC

89ms

SRV

140ms

Total

594ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-21 08:04:10	594ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 03:56:44	2543ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 04:55:25	887ms	2 NS 1 A 1 MX	🔒 Secure	View