137c.dk
Last scanned: 2026-08-26 04:02:05  ·  1123ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   46ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   45ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.192.97.80 3600s vmi1227322.contaboserver.net AS51167 Contabo GmbH 185.192.96.0/23 🇫🇷 France Lauterbourg
📧 MX Records4 records   51ms
PriorityTTLMail ServerIP addressesPTRASN
1 3600s mx0.mail.ovh.net 178.33.252.245 mx0.mail.ovh.net AS16276 OVH SAS
5 3600s mx1.mail.ovh.net 188.165.36.237 mx1.mail.ovh.net AS16276 OVH SAS
50 3600s mx2.mail.ovh.net 87.98.160.167 mx2.mail.ovh.net AS16276 OVH SAS
100 3600s mx3.mail.ovh.net 91.121.53.175 mx3.mail.ovh.net AS16276 OVH SAS
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   74ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 zimbra1.mail.ovh.net
📝 TXT Records1 records   192ms
TXT Record
v=spf1 include:mx.ovh.com ~all
✉️ SPF
PolicyRecord (137c.dk)
~all (soft fail) v=spf1 include:mx.ovh.com ~all
📨 DMARC
PolicyRecord (_dmarc.137c.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:dmarc@137c.dk
📬 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)
🔐 DNSSEC124ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026012005
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
46ms
A
45ms
MX
51ms
AAAA
47ms
TXT
192ms
CAA
49ms
HTTPS
41ms
TLSA
442ms
SOA
0ms
MTA-STS
72ms
DNSSEC
124ms
SRV
74ms
Total
1123ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 04:02:05 1123ms 3 NS 1 A 4 MX 🔒 Secure View
2026-07-01 07:37:34 1051ms 3 NS 1 A 4 MX 🔒 Secure View
2026-06-27 22:36:37 2581ms 3 NS 1 A 4 MX 🔒 Secure View
2026-06-26 07:41:43 2380ms 3 NS 1 A 4 MX 🔒 Secure View
2026-06-25 13:13:21 895ms 3 NS 1 A 4 MX 🔒 Secure View
2026-06-16 13:15:07 12163ms 3 NS 1 A 4 MX 🔒 Secure View
2026-06-16 13:12:43 733ms 3 NS 1 A 4 MX 🔒 Secure View
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