code42.dk
Last scanned: 2026-09-04 02:45:20  ·  1023ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   31ms
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   31ms
IPTTLPTRASNISP / OrgCIDRCountryCity
87.51.7.53 43200s — AS3292 TDC Holding A/S 87.48.0.0/13 🇩🇰 Denmark Aarhus
📧 MX Records1 records   28ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s mx1.spamfilter.cc 2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5
95.179.139.219
95.179.218.56		 —
95.179.139.219.vultrusercontent.com
95.179.218.56.vultrusercontent.com		 AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovercode42.dk → 87.51.7.53
🔶 Autoconfigcode42.dk → 87.51.7.53
🔷 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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.code42.dk code42.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC62ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082401
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
31ms
A
31ms
MX
28ms
AAAA
32ms
TXT
140ms
CAA
37ms
HTTPS
41ms
TLSA
285ms
SOA
0ms
MTA-STS
41ms
DNSSEC
62ms
SRV
57ms
Total
1023ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-04 02:45:20 1023ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-25 10:38:32 2796ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-25 18:35:26 1223ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-29 21:09:57 1413ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 21:44:59 450ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 21:41:40 4470ms 2 NS 1 A 1 MX 🔒 Secure View
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