arba.dk

📜 Historical scan 2026-06-16 13:38:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arba.dk is a .dk domain served by 4 nameservers (ns-1345.awsdns-40.org, ns-1765.awsdns-28.co.uk, ns-445.awsdns-55.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.173.5.50 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by arba-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

4 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1345.awsdns-40.org	—	—	—
ns-1765.awsdns-28.co.uk	—	—	—
ns-445.awsdns-55.com	—	—	—
ns-530.awsdns-02.net	—	—	—

🌍 A Records#

4 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
18.173.5.50	—	server-18-173-5-50.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	18.173.0.0/21	🇺🇸 United States	—
18.173.5.66	—	server-18-173-5-66.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	18.173.0.0/21	🇺🇸 United States	—
18.173.5.68	—	server-18-173-5-68.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	18.173.0.0/21	🇺🇸 United States	—
18.173.5.69	—	server-18-173-5-69.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	18.173.0.0/21	🇺🇸 United States	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	arba-dk.mail.protection.outlook.com	52.101.68.10 52.101.73.11 52.101.73.22 52.101.73.26	mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 150ms

TXT Record
MS=ms40545412
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (arba.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 2026-10-08 16:56:03

www CNAME	arba.dk (all on arba.dk) → 65.9.106.127 65.9.106.28 65.9.106.38 65.9.106.74 (AS16509)
www vs bare domain	Same network arba.dk: 65.9.106.127 65.9.106.28 65.9.106.38 65.9.106.74 (AS16509) www.arba.dk: 65.9.106.127 65.9.106.28 65.9.106.38 65.9.106.74 (AS16509)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

108ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

33ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-1345.awsdns-40.org
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

36ms

41ms

36ms

AAAA

37ms

TXT

150ms

CAA

34ms

HTTPS

35ms

TLSA

133ms

SOA

33ms

MTA-STS

52ms

DNSSEC

108ms

SRV

0ms

Total

829ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 13:46:59	3506ms	4 NS 4 A 1 MX	🔓 Insecure
2026-08-31 17:41:00	6201ms	4 NS 4 A 1 MX	🔓 Insecure
2026-08-26 16:39:03	10039ms	4 NS 4 A 1 MX	🔓 Insecure
2026-06-27 19:35:19	1068ms	4 NS 4 A 1 MX	🔓 Insecure
2026-06-16 13:38:27 shown	829ms	4 NS 4 A 1 MX	🔓 Insecure