core-design.dk
Last scanned: 2026-08-31 14:18:40  ·  1850ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   76ms
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 Records1 records   110ms
IPTTLPTRASNISP / OrgCIDRCountryCity
23.185.0.4 3600s — AS54113 Fastly, Inc. 23.185.0.0/24 🇺🇸 United States —
📧 MX Records4 records   114ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S
🔷 AAAA Records (IPv6)2 records   112ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2620:12a:8000::4 43200s — AS54113 Fastly, Inc. 2620:12a:8000:0:0:0:0:0/44 🇺🇸 United States —
2620:12a:8001::4 43200s — AS54113 Fastly, Inc. 2620:12a:8000:0:0:0:0:0/44 🇺🇸 United States —
🔐 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 / DANE4 records   218ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
🔐 DNSSEC270ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026083001
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
76ms
A
110ms
MX
114ms
AAAA
112ms
TXT
338ms
CAA
73ms
HTTPS
117ms
TLSA
218ms
SOA
0ms
MTA-STS
157ms
DNSSEC
270ms
SRV
119ms
Total
1850ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 14:18:40 1850ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-26 00:09:41 2646ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-21 23:32:41 912ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 22:25:54 907ms 2 NS 1 A 4 MX 🔒 Secure View
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