dou.dk DNS records

🖥️ Nameservers3 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.sdu.dk	130.225.155.136	ns1.sdu.dk	AS1835 IDDQD-AS
ns2.sdu.dk	130.225.155.148	ns2.sdu.dk	AS1835 IDDQD-AS
ns3.sdu.dk	193.163.227.4	ns3.sdu.dk	AS44328 Region Syddanmark

🌍 A Records1 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.156.23	3600s	—	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	—

📧 MX Records1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	. Null MX — domain accepts no email (RFC 7505)

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 138ms

TXT Record
MS=ms22994458
v=spf1 -all

✉️ SPF

Policy	Record (dou.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.dou.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:655b353a1f136@dmarc.centerasecurity.com; ruf=mailto:dmarc.reports@sdu.dk

📬 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)

🔐 DNSSEC96ms

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

🏷️ SOA0ms

Field	Value
Serial	2011051120
Primary NS (MNAME)	ns1.sdu.dk
Responsible (RNAME)	dns@it-service.sdu.dk
Refresh	43200s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

44ms

A

29ms

MX

30ms

AAAA

31ms

TXT

138ms

CAA

41ms

HTTPS

16033ms

TLSA

80ms

SOA

0ms

MTA-STS

38ms

DNSSEC

96ms

SRV

78ms

Total

16418ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 21:49:53	16418ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-29 23:38:03	16355ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 19:04:34	4528ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 16:38:55	4492ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 10:11:04	5675ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 09:08:28	8839ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 01:52:35	8482ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 12:55:51	5419ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 18:14:55	7040ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 18:10:05	4524ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 07:55:51	6895ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-02 04:38:20	9489ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-29 09:41:22	9481ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 16:45:06	4499ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 15:39:43	40440ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 11:38:05	6614ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 22:51:48	24425ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 05:23:21	8485ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 03:05:27	10702ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-13 20:41:12	8623ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 20:12:16	6705ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 21:08:31	8445ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 12:19:27	7259ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 11:11:58	4646ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 13:18:55	4425ms	3 NS 1 A 1 MX	🔒 Secure	View