kortnum.dk
📜 Historical scan 2026-06-17 23:40:10  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   62ms
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 Records
🌍
No A records found
📧 MX Records7 records   35ms
PriorityTTLMail ServerIP addressesPTRASN
10 — aspmx.l.google.com 2a00:1450:4025:c03::1b
64.233.161.27		 rc-in-f27.1e100.net
lh-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
20 — alt1.aspmx.l.google.com 192.178.158.27
2404:6800:4013:813::1a		 lcdels-in-f27.1e100.net
lcdels-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
20 — alt2.aspmx.l.google.com 192.178.158.27
2404:6800:4003:c26::1b		 lcdels-in-f27.1e100.net
so-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 — aspmx2.googlemail.com 192.178.211.27
2404:6800:4000:1025::1b		 lcbomp-in-f27.1e100.net
lcbomp-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 — aspmx3.googlemail.com 192.178.211.26
2404:6800:4003:c26::1a		 lcbomp-in-f26.1e100.net
so-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 — aspmx4.googlemail.com 108.177.125.27
2404:6800:4013:813::1b		 tp-in-f27.1e100.net
lcdels-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 — aspmx5.googlemail.com 192.178.230.27
2404:6800:4008:c01::1b		 yunrtab-in-f27.1e100.net
tp-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
🔷 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)
🔐 DNSSEC84ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA39ms
FieldValue
Serial2026061601
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
62ms
A
105ms
MX
35ms
AAAA
35ms
TXT
179ms
CAA
36ms
HTTPS
35ms
TLSA
64ms
SOA
39ms
MTA-STS
120ms
DNSSEC
84ms
SRV
119ms
Total
891ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-17 21:49:13 6628ms 2 NS 0 A 7 MX 🔒 Secure View
2026-08-09 17:05:33 5677ms 2 NS 0 A 7 MX 🔒 Secure View
2026-07-18 06:06:45 6235ms 2 NS 0 A 7 MX 🔒 Secure View
2026-06-26 22:16:51 749ms 2 NS 0 A 7 MX 🔒 Secure View
2026-06-17 23:40:10 891ms 2 NS 0 A 7 MX 🔒 Secure View
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