c4t.dk DNS records

🖥️ Nameservers3 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dns.services	195.242.131.6 2001:67c:564:ffff::11	ns1.dns.services ns1.dns.services	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.dns.services	2a00:1b18:2:3:3::2 62.69.152.37	ns2.dns.services ns2.dns.services	AS47527 DLX A/S AS47527 DLX A/S
ns3.dns.services	185.55.197.53	ns3.dns.services	AS60153 Inpadi ApS

🌍 A Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.131.238	3600s	forward01.dns.services	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	c4t-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca09::24 2a01:111:f403:ca09::9 2a01:111:f403:ca09::c 52.101.68.0 52.101.68.12 52.101.73.12 52.101.73.15	mail-db8pr02cu00106.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 153ms

TXT Record
MS=ms86239387
v=spf1 include:spf.protection.outlook.com include:smtp2.mailnem.dk -all

✉️ SPF

Policy	Record (c4t.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:smtp2.mailnem.dk -all

📨 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 / DANE

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

🔐 DNSSEC74ms

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

🏷️ SOA0ms

Field	Value
Serial	2022091419
Primary NS (MNAME)	ns1.dns.services
Responsible (RNAME)	post@dns.services
Refresh	10800s
Retry	3600s
Expire	1814400s
Minimum (neg-cache TTL)	7200s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

40ms

A

42ms

MX

33ms

AAAA

56ms

TXT

153ms

CAA

39ms

HTTPS

46ms

TLSA

181ms

SOA

0ms

MTA-STS

51ms

DNSSEC

74ms

SRV

57ms

Total

721ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 03:50:19	721ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 13:58:11	935ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 17:58:36	1182ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 01:51:06	753ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:45:11	830ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:40:30	2687ms	3 NS 1 A 1 MX	🔒 Secure	View