csek.dk DNS records

🖥️ Nameservers2 records 134ms

Nameserver	IP addresses	PTR	ASN / ISP
camilo.ns.cloudflare.com	108.162.195.118 162.159.44.118 172.64.35.118 2606:4700:58::a29f:2c76 2803:f800:50::6ca2:c376 2a06:98c1:50::ac40:2376	camilo.ns.cloudflare.com camilo.ns.cloudflare.com camilo.ns.cloudflare.com camilo.ns.cloudflare.com camilo.ns.cloudflare.com camilo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
serenity.ns.cloudflare.com	108.162.194.108 162.159.38.108 172.64.34.108 2606:4700:50::a29f:266c 2803:f800:50::6ca2:c26c 2a06:98c1:50::ac40:226c	serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 106ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.89.89	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.100	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	csek-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::9 2a01:111:f403:ca09::e 2a01:111:f403:ca48::c 52.101.73.12 52.101.73.153 52.101.73.2 52.101.73.28	mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.56
🔶 Autoconfig	104.21.89.89

🔷 AAAA Records (IPv6)2 records 80ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:9d64	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:5959	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 113ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.89.89,172.67.157.100 ech=AEX+DQBB3gAgACCrNeffYBs54Ic9ySmupUCgFow0o7lg/fz5Dfsa4DNSIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9d64,2606:4700:3037::6815:5959

🔌 SRV Records2 records 209ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 409ms

TXT Record
ca3-bb5f61152e7e4976bf3b6c6d4d04d74b
v=spf1 include:spf.simply.com include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (csek.dk)
~all (soft fail)	v=spf1 include:spf.simply.com include:spf.protection.outlook.com ~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)

🔐 DNSSEC276ms

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

🏷️ SOA0ms

Field	Value
Serial	2413098368
Primary NS (MNAME)	camilo.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

134ms

A

106ms

MX

118ms

AAAA

80ms

TXT

409ms

CAA

69ms

HTTPS

113ms

TLSA

788ms

SOA

0ms

MTA-STS

194ms

DNSSEC

276ms

SRV

209ms

Total

2712ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 12:48:18	2712ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-24 12:40:15	1851ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-10 07:19:33	1941ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-22 23:11:06	1211ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 23:06:32	707ms	2 NS 2 A 1 MX	🔓 Insecure	View