mulcol.dk
Last scanned: 2026-08-27 13:35:44  ·  2818ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   45ms
NameserverIP addressesPTRASN / ISP
ns1.redium.nl 164.138.254.5
2a0d:9c80:11::5		 ns1.rediium.nl
ns1.redium.nl		 AS49127 Asimo Networks B.V.
AS49127 Asimo Networks B.V.
ns2.redium.nl 2a01:4f8:c0c:17bd::1
78.46.135.82		 ns2.redium.nl
ns2.redium.nl		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
🌍 A Records1 records   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
164.138.254.192 3600s svr403.redium.net AS49127 Asimo Networks B.V. 164.138.248.0/21 🇳🇱 The Netherlands —
📧 MX Records1 records   46ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.mulcol.dk 164.138.254.192 svr403.redium.net AS49127 Asimo Networks B.V.
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover164.138.254.192
🔶 Autoconfig164.138.254.192
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   274ms
TXT Record
v=spf1 a mx ip4:164.138.254.39 ~all
✉️ SPF
PolicyRecord (mulcol.dk)
~all (soft fail) v=spf1 a mx ip4:164.138.254.39 ~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)
🔐 DNSSEC109ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026082701
Primary NS (MNAME)ns1.redium.nl
Responsible (RNAME)tech@redium.net
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
45ms
A
40ms
MX
46ms
AAAA
41ms
TXT
274ms
CAA
44ms
HTTPS
33ms
TLSA
140ms
SOA
0ms
MTA-STS
66ms
DNSSEC
109ms
SRV
84ms
Total
2818ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 13:35:44 2818ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-21 02:00:04 1534ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-14 18:00:19 1049ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-09 05:45:53 985ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-06 03:16:59 1723ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-24 04:13:05 1697ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-16 15:10:56 17295ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-10 02:55:38 1113ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 21:35:19 1152ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 12:17:36 1226ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-19 09:42:00 1050ms 2 NS 1 A 1 MX ⚠️ Bogus View
2026-06-18 22:37:55 2922ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 00:36:21 4064ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 00:08:48 1136ms 2 NS 1 A 1 MX 🔓 Insecure View
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