dco.dk
Last scanned: 2026-08-11 22:53:59  ·  4517ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   186ms
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   185ms
IPTTLPTRASNISP / OrgCIDRCountryCity
213.173.250.114 43200s — AS3308 Norlys Telco A/S 213.173.224.0/19 🇩🇰 Denmark Copenhagen
📧 MX Records1 records   170ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mail.dco.dk 213.173.250.114 — AS3308 Norlys Digital A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverdco.dk → 213.173.250.114
🔶 Autoconfigdco.dk → 213.173.250.114
🔷 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.dco.dk dco.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC404ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081101
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
186ms
A
185ms
MX
170ms
AAAA
172ms
TXT
509ms
CAA
174ms
HTTPS
227ms
TLSA
161ms
SOA
0ms
MTA-STS
265ms
DNSSEC
404ms
SRV
237ms
Total
4517ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-11 22:53:59 4517ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-18 05:08:57 3268ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-12 12:34:39 830ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-01 23:53:15 638ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 01:32:08 387ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 01:21:24 508ms 2 NS 1 A 1 MX 🔒 Secure View
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