yrt.dk
Last scanned: 2026-06-24 10:11:25  ·  962ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   46ms
NameserverIP addressesPTRASN / ISP
ns61.domaincontrol.com 2603:5:2153::20
97.74.101.32		 ns61.domaincontrol.com
ns61.domaincontrol.com		 AS44273 Host Europe GmbH
AS44273 Host Europe GmbH
ns62.domaincontrol.com 173.201.69.32
2603:5:2253::20		 ns62.domaincontrol.com
ns62.domaincontrol.com		 AS44273 Host Europe GmbH
AS44273 Host Europe GmbH
🌍 A Records2 records   59ms
IPTTLPTRASNISP / OrgCIDRCountryCity
15.197.148.33 600s a2aa9ff50de748dbe.awsglobalaccelerator.com AS16509 Amazon.com, Inc. 15.196.0.0/14 🇺🇸 United States —
3.33.130.190 600s a2aa9ff50de748dbe.awsglobalaccelerator.com AS16509 Amazon.com, Inc. 3.33.128.0/17 🇺🇸 United States —
📧 MX Records1 records   60ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx01.kolabnow.com 185.254.79.30
185.254.79.31		 kolabnow.com
kolabnow.com		 AS15576 NTS workspace AG
AS15576 NTS workspace AG
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   255ms
TXT Record
kolab-verify=912eff46908e92ddf10e490c37ec8394
✉️ 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
🔗 TLSA / DANE2 records   124ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx01.kolabnow.com DANE-EE · Full cert · SHA-256 41B01929AFEBCF769577C1B3B9D41F0B…
SMTP _25._tcp.mx01.kolabnow.com DANE-EE · Full cert · SHA-256 C48641B0A3AA38C42B6C5BFD42A25D63…
🔐 DNSSEC82ms
CheckResult
Validation Status❓ Unknown
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsbroken trust chain resolving 'yrt.dk/DS/IN': 127.0.0.1#53
🏷️ SOA54ms
FieldValue
Serial2023091900
Primary NS (MNAME)ns61.domaincontrol.com
Responsible (RNAME)dns@jomax.net
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
46ms
A
59ms
MX
60ms
AAAA
48ms
TXT
255ms
CAA
62ms
HTTPS
50ms
TLSA
124ms
SOA
54ms
MTA-STS
62ms
DNSSEC
82ms
SRV
112ms
Total
962ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-24 10:11:25 962ms 2 NS 2 A 1 MX ❓ Unknown View
2026-06-17 13:13:57 2164ms 2 NS 2 A 1 MX 🔓 Insecure View
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