rational.dk

📜 Historical scan 2026-06-21 05:59:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rational.dk is a .dk domain served by 4 nameservers (dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net and 1 more). It was registered on 25 June 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 199.46.34.76 is hosted by Akamai International B.V. (AS213120) in United States. Mail is handled by .. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 44ms

Nameserver	IP addresses	PTR	ASN / 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 Records#

1 records 66ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
199.46.34.76	7200s	—	AS213120	Akamai International B.V.	199.46.32.0/19	🇺🇸 United States	—

📧 MX Records#

1 records 64ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
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 Records#

2 records 261ms

TXT Record
v=spf1 mx/24 -all
Visit www.ibm.com for information about IBM products and services

✉️ SPF#

Policy	Record (rational.dk)
-all (hard fail)	v=spf1 mx/24 -all

📨 DMARC#

Policy	Record (_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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 14:59:57

www CNAME	redirect.www.ibm.com (all on ibm.com) → 199.46.34.76 (AS213120)
www vs bare domain	Same network rational.dk: 199.46.34.76 (AS213120) www.rational.dk: 199.46.34.76 (AS213120)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

108ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

63ms

Field	Value
Serial	1725379640
Primary NS (MNAME)	dns1.p01.nsone.net
Responsible (RNAME)	hostmaster@nsone.net
Refresh	43200s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-16 08:56:41

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	1997-06-25
Expires	2027-06-30 (256d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

44ms

66ms

64ms

AAAA

114ms

TXT

261ms

CAA

66ms

HTTPS

43ms

TLSA

158ms

SOA

63ms

MTA-STS

72ms

DNSSEC

108ms

SRV

138ms

Total

616ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-06 13:42:15	9499ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-01 08:17:28	693ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-21 05:59:25 shown	616ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 05:40:55	2414ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:18:17	2087ms	4 NS 1 A 0 MX	🔓 Insecure