nju.dk DNS records

🖥️ Nameservers2 records 143ms

Nameserver	IP addresses	PTR	ASN / ISP
colette.ns.cloudflare.com	108.162.194.28 162.159.38.28 172.64.34.28 2606:4700:50::a29f:261c 2803:f800:50::6ca2:c21c 2a06:98c1:50::ac40:221c	colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
otto.ns.cloudflare.com	108.162.195.135 162.159.44.135 172.64.35.135 2606:4700:58::a29f:2c87 2803:f800:50::6ca2:c387 2a06:98c1:50::ac40:2387	otto.ns.cloudflare.com otto.ns.cloudflare.com otto.ns.cloudflare.com otto.ns.cloudflare.com otto.ns.cloudflare.com otto.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 138ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.13.174	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.200.223	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 93ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)2 records 75ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:dae	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:c8df	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 134ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.13.174,172.67.200.223 ech=AEX+DQBBwQAgACDqOcUEAlQbxnjwDycL7AA5kS/2g0Yz6hqlFjNpSrq3VQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:dae,2606:4700:3034::ac43:c8df

📝 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.nju.dk	fkvmaPsIvWAqCJccTqXin3Ia5C-oc7f9Z4SYkZHW8N4
TXT	_acme-challenge.nju.dk	L6XcJusHTDGSXoYCwehbpiSlQJqHuhplt1u_C7elvZE

🔗 TLSA / DANE1 records 152ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…

🔐 DNSSEC252ms

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	2413430173
Primary NS (MNAME)	colette.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

143ms

A

138ms

MX

93ms

AAAA

75ms

TXT

387ms

CAA

162ms

HTTPS

134ms

TLSA

152ms

SOA

0ms

MTA-STS

154ms

DNSSEC

252ms

SRV

168ms

Total

1490ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 06:30:45	1490ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-28 03:35:25	578ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-26 01:52:49	1039ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-11 19:18:24	9235ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 19:31:06	1693ms	2 NS 2 A 1 MX	🔓 Insecure	View