couba.dk DNS records

🖥️ Nameservers2 records 207ms

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 222ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
95.154.26.30	3600s	—	AS39642	Sinal A/S	95.154.0.0/18	🇩🇰 Denmark	Årre

📧 MX Records1 records 210ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	couba-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::1 2a01:111:f403:ca09::1 2a01:111:f403:ca09::b 52.101.68.15 52.101.73.11 52.101.73.2 52.101.73.4	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00401.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 597ms

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

✉️ SPF

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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.couba.dk	8stfYY-jmwl7tYDuU_-6FktEv6Zp6zKHLSVbELCuszs

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC517ms

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

🏷️ SOA258ms

Field	Value
Serial	2021111701
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

207ms

A

222ms

MX

210ms

AAAA

190ms

TXT

597ms

CAA

244ms

HTTPS

202ms

TLSA

616ms

SOA

258ms

MTA-STS

235ms

DNSSEC

517ms

SRV

359ms

Total

1963ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-27 17:56:35	1963ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 10:24:08	1360ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 16:09:26	869ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-16 22:35:26	2565ms	2 NS 1 A 1 MX	🔒 Secure	View