c-o-b.dk
Last scanned: 2026-08-27 17:05:50  ·  2918ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   74ms
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   61ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.88.12.43 43200s — AS3292 TDC Holding A/S 193.88.0.0/15 🇩🇰 Denmark —
📧 MX Records1 records   60ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s 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
🔷 Autodiscover193.88.12.43
🔶 Autoconfig193.88.12.43
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   233ms
TXT Record
v=spf1 mx:c-o-b.dk -all
✉️ SPF
PolicyRecord (c-o-b.dk)
-all (hard fail) v=spf1 mx:c-o-b.dk -all
📨 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)
🔐 DNSSEC126ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026040401
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
74ms
A
61ms
MX
60ms
AAAA
80ms
TXT
233ms
CAA
55ms
HTTPS
86ms
TLSA
2079ms
SOA
0ms
MTA-STS
109ms
DNSSEC
126ms
SRV
106ms
Total
2918ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 17:05:50 2918ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 04:32:01 6536ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 14:03:01 676ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-21 08:49:35 934ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 17:09:54 1331ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 18:40:46 593ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 18:40:45 522ms 2 NS 1 A 1 MX 🔒 Secure View
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