dtk.dk
Last scanned: 2026-08-27 06:57:43  ·  10504ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   50ms
NameserverIP addressesPTRASN / ISP
ns1.eurodns.com 199.167.66.107
2610:1c8:b002::107		 ns1.eurodns.com
ns1.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns2.eurodns.com 104.37.178.107
2610:1c8:b001::107		 ns2.eurodns.com
ns2.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns3.eurodns.com 199.167.66.108
2610:1c8:b002::108		 ns3.eurodns.com
ns3.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns4.eurodns.com 104.37.178.108
2610:1c8:b001::108		 ns4.eurodns.com
ns4.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
🌍 A Records1 records   70ms
IPTTLPTRASNISP / OrgCIDRCountryCity
80.92.65.137 3600s 80-92-65-137.ip.dclux.com AS24611 Datacenter Luxembourg S.A. 80.92.64.0/19 🇱🇺 Luxembourg Luxembourg
📧 MX Records1 records   59ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s dtk-dk.mail.protection.outlook.com 2a01:111:f403:ca04::4
2a01:111:f403:ca04::a
2a01:111:f403:ca09::5
2a01:111:f403:ca09::6
52.101.103.143
52.101.209.153
52.101.68.16
52.101.68.25		 mail-db4pr02cu00204.inbound.protection.outlook.com
mail-du0pr03cu00102.inbound.protection.outlook.com
mail-am1pr04cu00105.inbound.protection.outlook.com
mail-am4pr0401cu00106.inbound.protection.outlook.com
mail-miypr03cu00107.inbound.protection.outlook.com
mail-cpjpr04cu00101.inbound.protection.outlook.com
mail-db4pr02cu00400.inbound.protection.outlook.com
mail-db8pr02cu00101.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.40
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   109ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 0 1 5061 sipfed.online.lync.com
📝 TXT Records1 records   300ms
TXT Record
v=spf1 ip4:31.209.188.114 ip4:193.104.43.14 ip4:194.239.235.17 include:spf.protection.outlook.com -all
✉️ SPF
PolicyRecord (dtk.dk)
-all (hard fail) v=spf1 ip4:31.209.188.114 ip4:193.104.43.14 ip4:194.239.235.17 include:spf.protection.outlook.com -all
📨 DMARC
PolicyRecord (_dmarc.dtk.dk)
p=reject v=DMARC1; p=reject;
📬 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)
🔐 DNSSEC9149ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026042903
Primary NS (MNAME)ns1.eurodns.com
Responsible (RNAME)hostmaster@eurodns.com
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
50ms
A
70ms
MX
59ms
AAAA
56ms
TXT
300ms
CAA
86ms
HTTPS
71ms
TLSA
607ms
SOA
0ms
MTA-STS
122ms
DNSSEC
9149ms
SRV
109ms
Total
10504ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 06:57:43 10504ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-26 13:18:22 2394ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 04:50:24 675ms 4 NS 1 A 1 MX 🔓 Insecure View
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