copenhagenfreeuniversity.dk DNS records

🖥️ Nameservers2 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
fish.ns.cloudflare.com	108.162.194.252 162.159.38.252 172.64.34.252 2606:4700:50::a29f:26fc 2803:f800:50::6ca2:c2fc 2a06:98c1:50::ac40:22fc	fish.ns.cloudflare.com fish.ns.cloudflare.com fish.ns.cloudflare.com fish.ns.cloudflare.com fish.ns.cloudflare.com fish.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
neil.ns.cloudflare.com	108.162.193.211 172.64.33.211 173.245.59.211 2606:4700:58::adf5:3bd3 2803:f800:50::6ca2:c1d3 2a06:98c1:50::ac40:21d3	neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.48.13	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.175.182	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	mail.h-email.net	162.55.164.116 165.227.156.49 165.227.159.144 167.235.143.33 178.62.199.248 49.13.4.90 5.161.194.135 5.161.98.212 5.75.171.74 91.107.214.206	static.116.164.55.162.clients.your-server.de mail3.h-email.net mail2.h-email.net mail.h-email.net mail.h-email.net static.90.4.13.49.clients.your-server.de static.135.194.161.5.clients.your-server.de mail.h-email.net mail.h-email.net static.206.214.107.91.clients.your-server.de	AS24940 Hetzner Online GmbH AS14061 DigitalOcean, LLC AS14061 DigitalOcean, LLC AS24940 Hetzner Online GmbH AS14061 DigitalOcean, LLC AS24940 Hetzner Online GmbH AS213230 Hetzner Online GmbH AS213230 Hetzner Online GmbH AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:300d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3030::ac43:afb6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 29ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.48.13,172.67.175.182 ech=AEX+DQBBaQAgACCE6p7WXTToWQvXMlRL5fHVX4OOV6P0SN+S5FZaeES6bwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:300d,2606:4700:3030::ac43:afb6

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.copenhagenfreeuniversity.dk	NSH3NM3Mm_fGQiqEHjkwzeirEu0Zy3zfJH_U5r1SHvQ
TXT	_acme-challenge.copenhagenfreeuniversity.dk	Pi076oAfAHPDUvm3E3ghztiqE6Ek3I_KC60YGM407X0

🔗 TLSA / DANE

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

🔐 DNSSEC95ms

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	2413844383
Primary NS (MNAME)	fish.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

28ms

A

30ms

MX

25ms

AAAA

31ms

TXT

136ms

CAA

28ms

HTTPS

29ms

TLSA

90ms

SOA

0ms

MTA-STS

56ms

DNSSEC

95ms

SRV

39ms

Total

1329ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 14:21:55	1329ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-19 19:19:29	3672ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-20 19:09:12	888ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 22:25:24	829ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 22:20:15	1320ms	2 NS 2 A 1 MX	🔓 Insecure	View