optibelt.dk
Last scanned: 2026-06-26 05:30:58  ·  2587ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   228ms
NameserverIP addressesPTRASN / ISP
ns2.knipp.de 195.253.6.52
2a01:5b0:0:29::34		 ns2.knipp.de
—		 AS8391 Knipp Medien und Kommunikation GmbH
AS8391 Knipp Medien und Kommunikation GmbH
ns3.knipp.de 195.253.113.3
2a01:5b0:31::3		 —
ns3.knipp.de		 AS8391 Knipp Medien und Kommunikation GmbH
AS8391 Knipp Medien und Kommunikation GmbH
🌍 A Records
🌍
No A records found
📧 MX Records1 records   271ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s optibelt-com.mail.cloud.nospamproxy.com 178.212.92.204
193.37.132.36		 de-s02-gw2.mail.cloud.nospamproxy.com
de-s02-gw1.mail.cloud.nospamproxy.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   801ms
TXT Record
bYILuKLTuS26yxMKr7xIBjzGkA5RI7oKTmISXO3qxpg=
v=spf1 mx include:spf.optibelt-com.cloud.nospamproxy.com -all
✉️ SPF
PolicyRecord (optibelt.dk)
-all (hard fail) v=spf1 mx include:spf.optibelt-com.cloud.nospamproxy.com -all
📨 DMARC
PolicyRecord (_dmarc.optibelt.dk)
p=quarantine v=DMARC1; p=quarantine; pct=0; rua=mailto:dmarc@optibelt.com
📬 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 / DANE4 records   267ms
Service / OwnerTypeCert association
SMTP _25._tcp.optibelt-com.mail.cloud.nospamproxy.com DANE-EE · SPKI · SHA-256 1BEAA1E1B7F75FE929FC440E5E6F3981…
SMTP _25._tcp.optibelt-com.mail.cloud.nospamproxy.com DANE-EE · SPKI · SHA-256 BF83AE28CC6944D909C06D31DFFB3419…
SMTP _25._tcp.optibelt-com.mail.cloud.nospamproxy.com DANE-EE · SPKI · SHA-256 CB9CDD599C1931292565646C64B162EB…
SMTP _25._tcp.optibelt-com.mail.cloud.nospamproxy.com DANE-EE · SPKI · SHA-256 CDD6204F8622AD1581C527B97C5718F0…
🔐 DNSSEC559ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA349ms
FieldValue
Serial2023092908
Primary NS (MNAME)ns2.knipp.de
Responsible (RNAME)dnsmaster@irondns.net
Refresh10800s
Retry3000s
Expire2419200s
Minimum (neg-cache TTL)900s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
228ms
A
271ms
MX
271ms
AAAA
237ms
TXT
801ms
CAA
252ms
HTTPS
222ms
TLSA
267ms
SOA
349ms
MTA-STS
471ms
DNSSEC
559ms
SRV
438ms
Total
2587ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-26 05:30:58 2587ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-18 08:10:41 4782ms 2 NS 0 A 1 MX 🔓 Insecure View
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