byduel.dk
📜 Historical scan 2026-06-16 18:05:58  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   32ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —
🌍 A Records1 records   30ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.211.38 — domain-parking.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen
📧 MX Records4 records   32ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   249ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (byduel.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.byduel.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:uz4xseau@ag.eu.dmarcadvisor.com;
📬 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 / DANE4 records   56ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
🔐 DNSSEC93ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA27ms
FieldValue
Serial2026042001
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
32ms
A
30ms
MX
32ms
AAAA
31ms
TXT
249ms
CAA
30ms
HTTPS
31ms
TLSA
56ms
SOA
27ms
MTA-STS
55ms
DNSSEC
93ms
SRV
0ms
Total
745ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 08:23:47 2091ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-11 02:00:01 6334ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-09 23:37:38 4887ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-03 22:02:48 27546ms 2 NS 0 A 0 MX ❓ Unknown View
2026-06-25 16:05:28 657ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-22 13:55:29 680ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-22 08:17:22 647ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 18:05:58 745ms 2 NS 1 A 4 MX 🔒 Secure View
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