studen.dk DNS records

🖥️ Nameservers2 records 164ms

Nameserver	IP addresses	PTR	ASN / ISP
reese.ns.cloudflare.com	108.162.195.117 162.159.44.117 172.64.35.117 2606:4700:58::a29f:2c75 2803:f800:50::6ca2:c375 2a06:98c1:50::ac40:2375	reese.ns.cloudflare.com reese.ns.cloudflare.com reese.ns.cloudflare.com reese.ns.cloudflare.com reese.ns.cloudflare.com reese.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
susan.ns.cloudflare.com	108.162.194.199 162.159.38.199 172.64.34.199 2606:4700:50::a29f:26c7 2803:f800:50::6ca2:c2c7 2a06:98c1:50::ac40:22c7	susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 189ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.77.154	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.209.144	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records3 records 191ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
29	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
41	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
93	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)2 records 197ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4d9a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:d190	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 221ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.77.154,172.67.209.144 ech=AEX+DQBBXgAgACC4ZPcMwYYc14W9GbrQ3gsLcmMz4oPVWZlCM4zELKcuDAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4d9a,2606:4700:3035::ac43:d190

📝 TXT Records1 records 916ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF

Policy	Record (studen.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 DMARC

Policy	Record (_dmarc.studen.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:tcod1eh2@ag.eu.dmarcadvisor.com;

📬 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 / DANE9 records 401ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…

🔐 DNSSEC597ms

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

🏷️ SOA0ms

Field	Value
Serial	2411767625
Primary NS (MNAME)	reese.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

164ms

A

189ms

MX

191ms

AAAA

197ms

TXT

916ms

CAA

197ms

HTTPS

221ms

TLSA

401ms

SOA

0ms

MTA-STS

355ms

DNSSEC

597ms

SRV

466ms

Total

8909ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-11 14:22:50	8909ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-06 02:04:41	2093ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-07-17 07:55:45	1803ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-07-06 21:34:54	8695ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-23 05:08:41	1485ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-19 22:01:14	3791ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-17 11:35:14	1713ms	2 NS 2 A 3 MX	🔒 Secure	View