blue.dk DNS records

🖥️ Nameservers2 records 34ms

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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.64	3600s	linux5.wannafind.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records2 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	eu-esec-01.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
20	3600s	eu-esec-02.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56
🔶 Autoconfig	blue.dk → 94.231.106.64

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 61ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	10	50	5061	sipfed.online.lync.com

📝 TXT Records3 records 128ms

TXT Record
google-site-verification=Hq06PsCbWVpG0eyxrRz8oJDSAns3FfgQfUU9fq3RwZc
MS=ms62121598
v=spf1 mx ip4:40.69.86.130 include:spf.protection.outlook.com include:outbound.mailhop.org include:spf-esec.heimdalsecurity.com ~all

✉️ SPF

Policy	Record (blue.dk)
~all (soft fail)	v=spf1 mx ip4:40.69.86.130 include:spf.protection.outlook.com include:outbound.mailhop.org include:spf-esec.heimdalsecurity.com ~all

📨 DMARC

Policy	Record (_dmarc.blue.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; rua=mailto:uhmftqi7@ag.eu.dmarcian.com;

📬 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
CNAME	_acme-challenge.blue.dk	blue.dk

🔗 TLSA / DANE2 records 131ms

Service / Owner	Type	Cert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…

🔐 DNSSEC79ms

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

🏷️ SOA0ms

Field	Value
Serial	2024082801
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

34ms

A

41ms

MX

41ms

AAAA

35ms

TXT

128ms

CAA

48ms

HTTPS

54ms

TLSA

131ms

SOA

0ms

MTA-STS

54ms

DNSSEC

79ms

SRV

61ms

Total

736ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 17:52:32	736ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-26 23:52:02	1582ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-25 02:25:40	24768ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-27 02:24:46	739ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 15:17:03	3026ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 15:03:56	2037ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 15:00:44	624ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 15:00:02	737ms	2 NS 1 A 2 MX	🔒 Secure	View