ar-systems.dk DNS records

🖥️ Nameservers2 records 35ms

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 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.202	360s	vm0521.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	360s	arsystems-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::10 2a01:111:f403:ca04::5 2a01:111:f403:ca09::4 52.101.68.15 52.101.68.21 52.101.68.29 52.101.73.2	mail-db7pr03cu00401.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 47ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 135ms

TXT Record
MS=ms34179027
v=spf1 ip4:116.202.162.225 ip4:217.195.178.0/24 include:spf.protection.outlook.com +a +mx -all

✉️ SPF

Policy	Record (ar-systems.dk)
-all (hard fail)	v=spf1 ip4:116.202.162.225 ip4:217.195.178.0/24 include:spf.protection.outlook.com +a +mx -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

🔗 TLSA / DANE

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

🔐 DNSSEC63ms

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

🏷️ SOA28ms

Field	Value
Serial	2024050802
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

35ms

A

47ms

MX

32ms

AAAA

32ms

TXT

135ms

CAA

33ms

HTTPS

34ms

TLSA

213ms

SOA

28ms

MTA-STS

51ms

DNSSEC

63ms

SRV

47ms

Total

821ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-29 10:01:15	821ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 11:40:53	835ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 03:36:59	2838ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 18:06:52	1068ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 15:42:53	1422ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 15:06:23	4067ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 00:33:45	1278ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 13:00:19	2492ms	2 NS 1 A 1 MX	🔒 Secure	View