arb.dk
Last scanned: 2026-09-02 23:09:58  ·  548ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   41ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   37ms
IPTTLPTRASNISP / OrgCIDRCountryCity
157.90.178.158 3600s static.158.178.90.157.clients.your-server.de AS24940 Hetzner Online GmbH 157.90.0.0/16 🇩🇪 Germany Falkenstein
📧 MX Records1 records   38ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s 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
🔌 SRV Records1 records   61ms
ServicePriorityWeightPortTarget
_imaps._tcp 0 0 993 mail.arb.dk
📝 TXT Records2 records   142ms
TXT Record
google-site-verification=qJtVzniz-cHuE-z--p3iY6KobUgJGmW1QKlTJcTdm10
v=spf1 +a +mx +a:arb.dk -all
✉️ SPF
PolicyRecord (arb.dk)
-all (hard fail) v=spf1 +a +mx +a:arb.dk -all
📨 DMARC
PolicyRecord (_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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.arb.dk 8Aj-EXgXqifZ3cZtVDlauZmctb3E5KmU3nBfMQrmtQg
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC77ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2024031900
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
41ms
A
37ms
MX
38ms
AAAA
37ms
TXT
142ms
CAA
46ms
HTTPS
52ms
TLSA
94ms
SOA
0ms
MTA-STS
58ms
DNSSEC
77ms
SRV
61ms
Total
548ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 23:09:58 548ms 4 NS 1 A 1 MX 🔒 Secure View
2026-08-27 16:37:45 1487ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-21 11:55:00 929ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-21 10:52:09 1141ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 12:55:14 1268ms 4 NS 1 A 1 MX 🔒 Secure View
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