dupp.dk
Last scanned: 2026-07-02 01:29:51  ·  794ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   58ms
NameserverIP addressesPTRASN / ISP
ns1.dotserv.com 178.20.218.61
2a01:7cc0:101:ffff::51		 ns1.dotserv.com
ns1.dotserv.com		 AS21060 Atea A/S
AS21060 Atea A/S
ns1.dotserv.net 178.20.217.29
2a01:7cc0:101:ffff::52		 ns1.dotserv.net
ns2.dotserv.com		 AS21060 Atea A/S
AS21060 Atea A/S
ns2.dotserv.com 193.180.214.21 ns2.dotserv.com AS44803 Webdock.io ApS
ns2.dotserv.net 162.19.249.51
2001:41d0:701:1100::c89e		 ns2.dotserv.net
ns2.dotserv.net		 AS16276 OVH SAS
AS16276 OVH SAS
🌍 A Records1 records   74ms
IPTTLPTRASNISP / OrgCIDRCountryCity
5.9.105.215 900s odin.pageone.dk AS24940 Hetzner Online GmbH 5.9.0.0/16 🇩🇪 Germany Falkenstein
📧 MX Records1 records   60ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.dupp.dk 5.9.105.215 odin.pageone.dk AS24940 Hetzner Online GmbH
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.dupp.dk → 5.9.105.215
🔶 Autoconfig5.9.105.215
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   267ms
TXT Record
v=spf1 include:_spf.dotserv.com -all
✉️ SPF
PolicyRecord (dupp.dk)
-all (hard fail) v=spf1 include:_spf.dotserv.com -all
📨 DMARC
PolicyRecord (_dmarc.dupp.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.dupp.dk GYhCU7N4spuh7D5AJi2IqRz_o2iq0iJ8OvI0IB21KiU
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC92ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA44ms
FieldValue
Serial2021052407
Primary NS (MNAME)ns1.dotserv.com
Responsible (RNAME)hostmaster@dotserv.com
Refresh14400s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)900s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
58ms
A
74ms
MX
60ms
AAAA
79ms
TXT
267ms
CAA
75ms
HTTPS
82ms
TLSA
71ms
SOA
44ms
MTA-STS
66ms
DNSSEC
92ms
SRV
100ms
Total
794ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-02 01:29:51 794ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 05:24:51 11346ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 05:04:29 1483ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 05:01:36 478ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 05:01:13 4610ms 4 NS 1 A 1 MX 🔓 Insecure View
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