arb.dk

📜 Historical scan 2026-06-16 12:55:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arb.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 20 March 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.90.178.158 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.arb.dk. The zone is DNSSEC-signed and validates, publishes a 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 101ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	—	—	—
ns2.simply.com	—	—	—
ns3.simply.com	—	—	—
ns4.simply.com	—	—	—

🌍 A Records#

1 records 115ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
157.90.178.158	—	static.158.178.90.157.clients.your-server.de	AS24940	Hetzner Online GmbH	157.90.0.0/16	🇩🇪 Germany	—

📧 MX Records#

1 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	mail.arb.dk	157.90.178.158	static.158.178.90.157.clients.your-server.de	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 330ms

TXT Record
google-site-verification=qJtVzniz-cHuE-z--p3iY6KobUgJGmW1QKlTJcTdm10
v=spf1 +a +mx +a:arb.dk -all

✉️ SPF#

Policy	Record (arb.dk)
-all (hard fail)	v=spf1 +a +mx +a:arb.dk -all

📨 DMARC#

Policy	Record (_dmarc.arb.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 21:16:06

www CNAME	arb.dk (all on arb.dk) → 157.90.178.158 (AS24940)
www vs bare domain	Same network arb.dk: 157.90.178.158 (AS24940) www.arb.dk: 157.90.178.158 (AS24940)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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#

273ms

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

🏷️ SOA#

98ms

Field	Value
Serial	2024031900
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 17:57:15

Field	Value
Registrar	Simply.com A/S
Registered	2006-03-20
Expires	2027-03-31 (156d)

🔗 Same registrant#

2 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).

Domain	Registrar
flise.dk	Punktum dk A/S (direct)
spilleregler.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

101ms

115ms

99ms

AAAA

106ms

TXT

330ms

CAA

94ms

HTTPS

93ms

TLSA

114ms

SOA

98ms

MTA-STS

90ms

DNSSEC

273ms

SRV

0ms

Total

1268ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 21:16:05	405ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 15:22:05	3187ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-25 14:15:36	593ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-02 23:09:58	548ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-27 16:37:45	1487ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-21 11:55:00	929ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-21 10:52:09	1141ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 12:55:14 shown	1268ms	4 NS 1 A 1 MX	🔒 Secure