ar-systems.dk

📜 Historical scan 2026-06-26 18:06:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ar-systems.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 28 September 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.202 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by arsystems-dk0e.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 44ms

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 Records#

1 records 35ms

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 Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	360s	arsystems-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::1 2a01:111:f403:ca09::5 2a01:111:f403:ca09::f 52.101.68.32 52.101.73.153 52.101.73.26 52.101.73.4	mail-db4pr02cu00204.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr83cu00404.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 Records#

1 records 36ms

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

📝 TXT Records#

2 records 130ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 03:09:00

www	185.21.41.202 (AS48854) (address records, no CNAME)
www vs bare domain	Same network ar-systems.dk: 185.21.41.202 (AS48854) www.ar-systems.dk: 185.21.41.202 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

56ms

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

🏷️ SOA#

33ms

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#

WHOIS fetched 2026-10-17 07:57:33

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-09-28
Expires	2027-09-30 (348d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

44ms

35ms

34ms

AAAA

34ms

TXT

130ms

CAA

91ms

HTTPS

34ms

TLSA

485ms

SOA

33ms

MTA-STS

39ms

DNSSEC

56ms

SRV

36ms

Total

1068ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 09:03:18	552ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 07:48:14	834ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-02 14:19:57	1352ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-29 10:01:15	821ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 11:40:53	835ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 03:36:59	2838ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 18:06:52 shown	1068ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 15:42:53	1422ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 15:06:23	4067ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 00:33:45	1278ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:00:19	2492ms	2 NS 1 A 1 MX	🔒 Secure