rationel-as.dk DNS records

🖥️ Nameservers2 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 83ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.130	3600s	linux102.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 82ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	rationelas-dk02b.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::20 2a01:111:f403:ca09::b 2a01:111:f403:ca09::d 52.101.68.15 52.101.68.18 52.101.73.2 52.101.73.28	mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 203ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.antispamcloud.com include:spf.curanet.dk ip4:212.237.249.81 ip4:94.189.33.106 ip4:185.163.185.53 -all

✉️ SPF

Policy	Record (rationel-as.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.antispamcloud.com include:spf.curanet.dk ip4:212.237.249.81 ip4:94.189.33.106 ip4:185.163.185.53 -all

📨 DMARC

Policy	Record (_dmarc.rationel-as.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rf=afrf; pct=100; ri=86400

📬 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)

🔐 DNSSEC96ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA49ms

Field	Value
Serial	2026060902
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

42ms

A

83ms

MX

82ms

AAAA

99ms

TXT

203ms

CAA

84ms

HTTPS

31ms

TLSA

1156ms

SOA

49ms

MTA-STS

43ms

DNSSEC

96ms

SRV

394ms

Total

2052ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-26 02:45:24	2052ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 02:05:30	905ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 14:58:12	2196ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:31:01	1087ms	2 NS 1 A 1 MX	🔒 Secure	View