dueb.dk
Last scanned: 2026-08-28 06:43:04  ·  6950ms total
🧟 Lame delegation ⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   1210ms
NameserverIP addressesPTRASN / ISP
ns1.first-ns.de 213.239.242.238
2a01:4f8:0:a101::a:1		 ns1.first-ns.de
ns1.first-ns.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
robotns2.second-ns.de 213.133.100.103
2a01:4f8:0:1::5ddc:2		 robotns2.second-ns.de
robotns2.second-ns.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
robotns3.second-ns.com 193.47.99.3
2001:67c:192c::add:a3		 robotns3.second-ns.com
robotns3.second-ns.com		 AS12337 noris network AG
AS12337 noris network AG
🌍 A Records
🌍
No A records found
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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)
🔐 DNSSEC1586ms
CheckResult
Validation Status❓ Unknown
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: failure
🏷️ SOA
✗ No SOA record found
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
1210ms
A
1381ms
MX
1545ms
AAAA
1599ms
TXT
3813ms
CAA
1046ms
HTTPS
1253ms
TLSA
579ms
SOA
1569ms
MTA-STS
1016ms
DNSSEC
1586ms
SRV
1697ms
Total
6950ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 06:43:04 6950ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-23 18:04:25 11115ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-22 16:00:42 7406ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-21 15:57:03 3250ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-20 15:41:59 2581ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-19 14:25:11 12739ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-18 14:22:38 7004ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-17 03:42:55 9138ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-15 15:15:52 4189ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-13 15:19:25 6772ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-12 06:27:04 8269ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-10 23:35:41 12731ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-09 06:18:55 12592ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-07 01:13:53 5269ms 3 NS 0 A 0 MX ❓ Unknown View
2026-08-03 07:53:49 6442ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-27 05:59:02 12624ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-26 05:30:38 6342ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-25 05:07:14 20182ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-24 04:38:08 2339ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-23 01:46:08 3301ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-21 05:37:59 10965ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-20 04:17:04 9548ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-19 00:27:34 10330ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-18 00:03:06 6479ms 3 NS 0 A 0 MX ❓ Unknown View
2026-07-15 08:56:50 10996ms 3 NS 0 A 0 MX ❓ Unknown View
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