rksk.dk
Last scanned: 2026-08-28 02:27:16  ·  969ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   39ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   56ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.223.27.29 3600s vdom18.net.dk2.zitcom.dk AS48854 team.blue Denmark A/S 185.223.24.0/22 🇩🇰 Denmark —
📧 MX Records3 records   49ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mx1-dk.centerasecurity.dk 128.76.60.167
128.76.60.187
89.233.19.127
89.233.19.127
89.233.19.188
89.233.19.188		 mx6.centerasecurity.dk
mx6.centerasecurity.dk
127.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk
188.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk		 AS3292 TDC Holding A/S
AS3292 TDC Holding A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
10 43200s mx2-dk.centerasecurity.dk 128.76.60.168
128.76.60.169
89.233.19.128
89.233.19.128
89.233.19.129
89.233.19.129		 mx6.centerasecurity.dk
mx6.centerasecurity.dk
128.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk
129.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk		 AS3292 TDC Holding A/S
AS3292 TDC Holding A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
20 3600s mx3-dk.centerasecurity.dk 128.76.60.187
89.233.19.129
89.233.19.129		 mx6.centerasecurity.dk
129.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk		 AS3292 TDC Holding A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover193.0.161.5
🔶 Autoconfig185.223.27.29
🔷 AAAA Records (IPv6)1 records   48ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2339:400a:29:: 3600s — AS48854 team.blue Denmark A/S 2a02:2339:4000:0:0:0:0:0/34 🇩🇰 Denmark —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records4 records   86ms
ServicePriorityWeightPortTarget
_sip._tcp 0 0 5060 ipt-expwaye.rksk.dk
_sipfederationtls._tcp 0 10 5061 ipt-expwaye2.rksk.dk
_xmpp-client._tcp 0 10 5222 ipt-cmse1.rksk.dk
_xmpp-server._tcp 0 0 5269 ipt-expwaye2.rksk.dk
📝 TXT Records7 records   206ms
TXT Record
amazon-business-verification=45079eecc3b286910b0ffa77c276456f23afe3b9b18fe3faa34ac2f878431641
apple-domain-verification=KEmQCKdhhrcNKqZa
apple-domain-verification=xfAjfxTQ8LU6PWJf
cisco-ci-domain-verification=3447c5e2992f50f60940c3b1edc4017783e7a7eb8198661a07dbcd12f3896a6c
DomainVerification=8YRPX83I1DFTHOQAYO8VBRJ6YXKSY5NFZCI8DW3HUHNKIOI9HFB25AO9XN8VE32Q
MS=AE771011C68102296F5080E1B49DCA56FCCB9921
v=spf1 ip4:84.252.78.11 ip4:84.252.78.12 include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:_spf.dbc.dk include:_spf.presscloud.com include:spf.hostnordic.com include:spf.mandrillapp.com include:spf.ubivox.com -all
✉️ SPF
PolicyRecord (rksk.dk)
-all (hard fail) v=spf1 ip4:84.252.78.11 ip4:84.252.78.12 include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:_spf.dbc.dk include:_spf.presscloud.com include:spf.hostnordic.com include:spf.mandrillapp.com include:spf.ubivox.com -all
📨 DMARC
PolicyRecord (_dmarc.rksk.dk)
p=reject v=DMARC1; p=reject; rua=mailto:650b3cc719f4f@dmarc.centerasecurity.com,mailto:dmarc@rksk.dk; ruf=mailto:dmarc-fail@rksk.dk; adkim=r; aspf=r; fo=1
📬 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
CNAME _acme-challenge.rksk.dk _acme-challenge.9ac01310829aae848a5b299bb9e38ac9fdd3e0d949697c77.upcloudlb.com
🔗 TLSA / DANE6 records   68ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
🔐 DNSSEC103ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082015
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
39ms
A
56ms
MX
49ms
AAAA
48ms
TXT
206ms
CAA
46ms
HTTPS
52ms
TLSA
68ms
SOA
0ms
MTA-STS
88ms
DNSSEC
103ms
SRV
86ms
Total
969ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 02:27:16 969ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-27 01:03:13 1253ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-21 09:02:03 1441ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-08 03:46:10 1556ms 2 NS 1 A 3 MX 🔒 Secure View
2026-07-10 10:18:33 3488ms 2 NS 1 A 3 MX 🔒 Secure View
2026-07-08 14:02:35 1191ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-27 00:38:41 2547ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-26 18:03:44 762ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-17 23:02:05 1392ms 2 NS 1 A 3 MX 🔒 Secure View
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