1c5.dk DNS records

🖥️ Nameservers2 records 29ms

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 24ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.215	3600s	prolinux4.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	1c5-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca09:: 2a01:111:f403:ca09::2 2a01:111:f403:ca09::a 52.101.103.140 52.101.181.153 52.101.73.145 52.101.73.28	mail-db5pr02cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 86ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.onlinemail.io -all

✉️ SPF

Policy	Record (1c5.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.onlinemail.io -all

📨 DMARC

Policy	Record (_dmarc.1c5.dk)
p=reject	v=DMARC1; p=reject;

📬 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)

🔐 DNSSEC102ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082703
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

29ms

A

24ms

MX

27ms

AAAA

22ms

TXT

86ms

CAA

36ms

HTTPS

29ms

TLSA

734ms

SOA

0ms

MTA-STS

33ms

DNSSEC

102ms

SRV

36ms

Total

1143ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 17:23:19	1143ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 18:55:15	16864ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 18:52:50	1463ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-21 14:45:03	1193ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 15:02:32	1274ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 12:46:21	780ms	2 NS 1 A 1 MX	🔓 Insecure	View