zystm.dk DNS records

🖥️ Nameservers2 records 53ms

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 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
116.202.130.105	3600s	web.nomilk.dk	AS24940	Hetzner Online GmbH	116.202.0.0/15	🇩🇪 Germany	Falkenstein

📧 MX Records2 records 39ms

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
10	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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 163ms

TXT Record
MS=ms51409095
v=spf1 include:spf-esec.heimdalsecurity.com include:mailmailmail.net ip4:92.246.0.102 ip4:116.202.130.105 include:spf.resellerhotel.dk v=spf1 include:spf.protection.outlook.com include:spf.eu.signature365.net -all

✉️ SPF

Policy	Record (zystm.dk)
-all (hard fail)	v=spf1 include:spf-esec.heimdalsecurity.com include:mailmailmail.net ip4:92.246.0.102 ip4:116.202.130.105 include:spf.resellerhotel.dk v=spf1 include:spf.protection.outlook.com include:spf.eu.signature365.net -all

📨 DMARC

Policy	Record (_dmarc.zystm.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 / DANE2 records 150ms

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…

🔐 DNSSEC146ms

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

🏷️ SOA0ms

Field	Value
Serial	2026030301
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

53ms

A

67ms

MX

39ms

AAAA

50ms

TXT

163ms

CAA

46ms

HTTPS

61ms

TLSA

150ms

SOA

0ms

MTA-STS

71ms

DNSSEC

146ms

SRV

67ms

Total

1104ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 18:26:50	1104ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-26 09:04:52	669ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-27 07:06:32	807ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-26 09:10:52	3024ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-23 06:04:48	1122ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 23:05:13	1011ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 17:32:33	2747ms	2 NS 1 A 2 MX	🔒 Secure	View