3x53.dk DNS records

🖥️ Nameservers2 records 29ms

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 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
152.115.36.113	3600s	s11.stom.dk	AS31027	GlobalConnect A/S	152.115.0.0/16	🇩🇰 Denmark	—

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	3x53-dk.mail.protection.outlook.com	2a01:111:f403:ca09:: 2a01:111:f403:ca09::8 2a01:111:f403:ca09::c 2a01:111:f403:ca09::f 52.101.68.32 52.101.73.26 52.101.73.4 52.101.73.8	mail-am3pr04cu00500.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com mail-am0pr04cu00500.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
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 143ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.stom.dk -all

✉️ SPF

Policy	Record (3x53.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.stom.dk -all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC53ms

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

🏷️ SOA33ms

Field	Value
Serial	2025111901
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

29ms

A

28ms

MX

31ms

AAAA

38ms

TXT

143ms

CAA

31ms

HTTPS

27ms

TLSA

169ms

SOA

33ms

MTA-STS

40ms

DNSSEC

53ms

SRV

43ms

Total

710ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-29 06:46:55	710ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 11:55:44	1200ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 23:39:36	2798ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 14:12:26	2170ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 13:00:01	2521ms	2 NS 1 A 1 MX	🔒 Secure	View