koereskoler.dk DNS records

🖥️ Nameservers2 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
aliza.ns.cloudflare.com	108.162.194.55 162.159.38.55 172.64.34.55 2606:4700:50::a29f:2637 2803:f800:50::6ca2:c237 2a06:98c1:50::ac40:2237	aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
pranab.ns.cloudflare.com	108.162.195.199 162.159.44.199 172.64.35.199 2606:4700:58::a29f:2cc7 2803:f800:50::6ca2:c3c7 2a06:98c1:50::ac40:23c7	pranab.ns.cloudflare.com pranab.ns.cloudflare.com pranab.ns.cloudflare.com pranab.ns.cloudflare.com pranab.ns.cloudflare.com pranab.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 103ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.26.68	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.135.152	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.26.68
🔶 Autoconfig	172.67.135.152

🔷 AAAA Records (IPv6)2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:1a44	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3030::ac43:8798	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 72ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.26.68,172.67.135.152 ech=AEX+DQBBDgAgACDH6830XIjbPhGwX6lmbkobeH4z2RDPkGcHd/DpskPMWgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1a44,2606:4700:3030::ac43:8798

📝 TXT Records2 records 315ms

TXT Record
google-site-verification=50QJN6UFuw25IXr7hQ4NGB3wX86INTWXh2aKewZNUvE
v=spf1 include:spf.simply.com -all

✉️ SPF

Policy	Record (koereskoler.dk)
-all (hard fail)	v=spf1 include:spf.simply.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 / DANE2 records 117ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC120ms

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	2412259076
Primary NS (MNAME)	aliza.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

52ms

A

103ms

MX

63ms

AAAA

41ms

TXT

315ms

CAA

59ms

HTTPS

72ms

TLSA

117ms

SOA

0ms

MTA-STS

111ms

DNSSEC

120ms

SRV

200ms

Total

899ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 17:02:33	899ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-16 15:43:42	3127ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-15 05:41:00	2364ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-06 22:36:45	1156ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-26 07:24:52	1107ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 06:25:08	1087ms	2 NS 2 A 1 MX	🔓 Insecure	View