rustek.dk DNS records

🖥️ Nameservers2 records 98ms

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 103ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.100	—	vm1176.enterprisecloud.nu	AS48854	—	—	—	—

📧 MX Records2 records 98ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
20	—	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 157ms

TXT Record
MS=ms40904307
v=spf1 include:spf.protection.outlook.com include:_spf.centerasecurity.dk ip4:185.21.40.100 ip4:193.8.36.0/22 -all

✉️ SPF

Policy	Record (rustek.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.centerasecurity.dk ip4:185.21.40.100 ip4:193.8.36.0/22 -all

📨 DMARC

Policy	Record (_dmarc.rustek.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@rustek.dk;

📬 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 / DANE4 records 104ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…

🔐 DNSSEC171ms

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

🏷️ SOA79ms

Field	Value
Serial	2025060202
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

98ms

A

103ms

MX

98ms

AAAA

108ms

TXT

157ms

CAA

101ms

HTTPS

111ms

TLSA

104ms

SOA

79ms

MTA-STS

85ms

DNSSEC

171ms

SRV

0ms

Total

804ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 23:43:11	715ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 10:57:17	769ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 16:15:58	1376ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 11:31:35	1339ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 18:44:36	1695ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 20:06:58	804ms	2 NS 1 A 2 MX	🔒 Secure	View