rational.dk
Last scanned: 2026-09-01 08:17:28  ·  693ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   78ms
NameserverIP addressesPTRASN / ISP
dns1.p05.nsone.net 198.51.44.5
2620:4d:4000:6259:7:5:0:1		 dns1.p05.nsone.net
dns1.p05.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc
dns2.p05.nsone.net 198.51.45.5
2a00:edc0:6259:7:5::2		 dns2.p05.nsone.net
dns2.p05.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc
dns3.p05.nsone.net 198.51.44.69
2620:4d:4000:6259:7:5:0:3		 dns3.p05.nsone.net
dns3.p05.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc
dns4.p05.nsone.net 198.51.45.69
2a00:edc0:6259:7:5::4		 dns4.p05.nsone.net
dns4.p05.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc
🌍 A Records1 records   62ms
IPTTLPTRASNISP / OrgCIDRCountryCity
199.46.34.76 7200s — AS213120 Akamai International B.V. 199.46.32.0/19 🇺🇸 United States —
📧 MX Records1 records   69ms
PriorityTTLMail ServerIP addressesPTRASN
0 86400s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   275ms
TXT Record
v=spf1 mx/24 -all
Visit www.ibm.com for information about IBM products and services
✉️ SPF
PolicyRecord (rational.dk)
-all (hard fail) v=spf1 mx/24 -all
📨 DMARC
PolicyRecord (_dmarc.rational.dk)
p=reject v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC101ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1725379640
Primary NS (MNAME)dns1.p01.nsone.net
Responsible (RNAME)hostmaster@nsone.net
Refresh43200s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
78ms
A
62ms
MX
69ms
AAAA
58ms
TXT
275ms
CAA
52ms
HTTPS
75ms
TLSA
139ms
SOA
0ms
MTA-STS
92ms
DNSSEC
101ms
SRV
94ms
Total
693ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-01 08:17:28 693ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 05:59:25 616ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 05:40:55 2414ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 13:18:17 2087ms 4 NS 1 A 0 MX 🔓 Insecure View
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