citysystem.dk DNS records

🖥️ Nameservers2 records 35ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.9.113.4	360s	server2.jkhosting.dk	AS24940	Hetzner Online GmbH	5.9.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	citysystem-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::e 2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 52.101.68.18 52.101.68.21 52.101.73.123 52.101.73.19	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-as8pr04cu00803.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
🔶 Autoconfig	5.9.113.4

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 185ms

TXT Record
MS=ms29879428
v=spf1 mx a ip4:5.9.113.4 include:spf.azehosting.net include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (citysystem.dk)
-all (hard fail)	v=spf1 mx a ip4:5.9.113.4 include:spf.azehosting.net include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.citysystem.dk)
p=reject	v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:michael@joomlakonsulenten.dk;ruf=mailto:michael@joomlakonsulenten.dk;ri=86400;aspf=r;adkim=r;fo=1

📬 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)

🔐 DNSSEC182ms

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

🏷️ SOA0ms

Field	Value
Serial	2023031402
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.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

35ms

A

47ms

MX

36ms

AAAA

33ms

TXT

185ms

CAA

86ms

HTTPS

54ms

TLSA

654ms

SOA

0ms

MTA-STS

117ms

DNSSEC

182ms

SRV

241ms

Total

1522ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 02:42:53	1522ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 23:49:51	10097ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 00:21:28	2214ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 20:41:07	1149ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 04:26:05	1243ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 23:13:18	65535ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:09:20	512ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:07:42	1875ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:01:38	627ms	2 NS 1 A 1 MX	🔒 Secure	View