colum-bus.dk
Last scanned: 2026-08-03 11:14:58  ·  14820ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   119ms
NameserverIP addressesPTRASN / ISP
ns1.basejump.dk 93.167.198.71 — AS3292 TDC Holding A/S
ns1.kortermann-hosting.dk 94.231.105.180 vdom105.net.dk2.zitcom.dk AS48854 team.blue Denmark A/S
ns2.kortermann-hosting.dk 94.231.105.146 — AS48854 team.blue Denmark A/S
ns3.alphasite.dk — — —
🌍 A Records1 records   104ms
IPTTLPTRASNISP / OrgCIDRCountryCity
94.189.39.106 3600s — AS3292 TDC Holding A/S 94.189.0.0/17 🇩🇰 Denmark —
📧 MX Records2 records   125ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx10.check4spam.dk 149.13.75.27
2001:978:2:7::162:100		 fe1-r3-in.fra02.l.antispamcloud.com
fe1-r3-in.fra02.l.antispamcloud.com		 AS16633 N-able Technologies, Inc.
AS174 Cogent Communications, LLC
20 3600s mx20.check4spam.dk 154.59.193.124
2001:978:2:6::f:124		 fe3-r3-in.du01.l.antispamcloud.com
fe3-r3-in.du01.l.antispamcloud.com		 AS16633 N-able Technologies, Inc.
AS174 Cogent Communications, LLC
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   658ms
TXT Record
v=spf1 +a +mx include:spf.securesmtp.dk -all
✉️ SPF
PolicyRecord (colum-bus.dk)
-all (hard fail) v=spf1 +a +mx include:spf.securesmtp.dk -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)
🔐 DNSSEC403ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial86551
Primary NS (MNAME)ns1.kortermann-hosting.dk
Responsible (RNAME)hostmaster@kortermann-hosting.dk
Refresh14400s
Retry7200s
Expire2419200s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
119ms
A
104ms
MX
125ms
AAAA
76ms
TXT
658ms
CAA
105ms
HTTPS
362ms
TLSA
4046ms
SOA
0ms
MTA-STS
122ms
DNSSEC
403ms
SRV
856ms
Total
14820ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-03 11:14:58 14820ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-07-27 08:54:23 14954ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-06-25 14:51:58 22712ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-06-23 04:53:42 6888ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-06-22 20:28:29 1167ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 21:24:06 1135ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-06-16 21:51:18 624ms 4 NS 1 A 2 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone