undef.dk
Last scanned: 2026-09-03 07:10:52  ·  17513ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   51ms
NameserverIP addressesPTRASN / ISP
helium.ns.hetzner.de 193.47.99.5
2001:67c:192c::add:5		 helium.ns.hetzner.de
helium.ns.hetzner.de		 AS12337 noris network AG
AS12337 noris network AG
hydrogen.ns.hetzner.com 213.133.100.98
2a01:4f8:0:1::add:1098		 hydrogen.ns.hetzner.com
hydrogen.ns.hetzner.com		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
oxygen.ns.hetzner.com 2a01:4f8:0:1::add:2992
88.198.229.192		 oxygen.ns.hetzner.com
oxygen.ns.hetzner.com		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
🌍 A Records1 records   72ms
IPTTLPTRASNISP / OrgCIDRCountryCity
88.99.28.179 360s fiona.klintoe.eu AS24940 Hetzner Online GmbH 88.99.0.0/16 🇩🇪 Germany Falkenstein
📧 MX Records1 records   53ms
PriorityTTLMail ServerIP addressesPTRASN
10 360s fiona.klintoe.eu — — —
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   355ms
TXT Record
v=spf1 redirect=klintoe.eu
✉️ SPF
PolicyRecord (undef.dk)
no all — incomplete SPF v=spf1 redirect=klintoe.eu
📨 DMARC
PolicyRecord (_dmarc.undef.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:dmarc@undef.dk; ruf=mailto:undef@undef.dk; adkim=r; aspf=s
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records1 records   61ms
FlagsTagValue
128 issue letsencrypt.org
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC9095ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026041400
Primary NS (MNAME)hydrogen.ns.hetzner.com
Responsible (RNAME)dns@hetzner.com
Refresh86400s
Retry10800s
Expire3600000s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
51ms
A
72ms
MX
53ms
AAAA
52ms
TXT
355ms
CAA
61ms
HTTPS
66ms
TLSA
8068ms
SOA
0ms
MTA-STS
96ms
DNSSEC
9095ms
SRV
92ms
Total
17513ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-03 07:10:52 17513ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-27 13:40:01 851ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-25 13:12:50 2598ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 13:13:39 3486ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 13:31:39 3741ms 3 NS 1 A 1 MX 🔓 Insecure View
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