categorization.dk DNS records

🖥️ Nameservers2 records 63ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.au.dk	20.73.178.34	ns3.au.dk	AS8075 Microsoft Corporation
ns4.au.dk	185.45.20.154	ns4.au.dk	AS62138 Aarhus Universitet

🌍 A Records1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.45.20.48	900s	—	AS62138	Aarhus Universitet	185.45.20.0/22	🇩🇰 Denmark	Aarhus

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 242ms

TXT Record
v=spf1 include:spf.au.dk -all

✉️ SPF

Policy	Record (categorization.dk)
-all (hard fail)	v=spf1 include:spf.au.dk -all

📨 DMARC

Policy	Record (_dmarc.categorization.dk)
p=reject	v=DMARC1;p=reject;pct=100;rua=mailto:ced1e70d2c70635@rep.dmarcanalyzer.com;ruf=mailto:ced1e70d2c70635@for.dmarcanalyzer.com;aspf=r;

📬 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)

🔐 DNSSEC86ms

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

🏷️ SOA0ms

Field	Value
Serial	2012073897
Primary NS (MNAME)	infobloxgm3.au.dk
Responsible (RNAME)	auit-dns@au.dk
Refresh	10800s
Retry	1080s
Expire	2419200s
Minimum (neg-cache TTL)	900s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

63ms

A

45ms

MX

48ms

AAAA

44ms

TXT

242ms

CAA

53ms

HTTPS

51ms

TLSA

61ms

SOA

0ms

MTA-STS

69ms

DNSSEC

86ms

SRV

79ms

Total

614ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 16:19:33	1064ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-28 21:21:59	1630ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-27 18:05:49	381ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-26 16:42:42	420ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-24 16:48:24	2395ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-23 07:53:34	1568ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-22 07:33:49	679ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-21 07:31:24	9034ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-20 06:25:42	598ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-19 05:49:22	3778ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-17 21:34:01	753ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-16 04:49:06	1328ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-15 14:22:18	614ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-14 12:22:47	2027ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-13 04:17:12	1521ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-11 21:20:19	785ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-10 00:58:12	2221ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-07 07:14:23	841ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-01 21:32:41	625ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-30 13:52:35	759ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-27 16:57:22	9430ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-26 16:03:35	564ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-25 15:17:26	617ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-24 14:40:56	8589ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-23 13:53:18	641ms	2 NS 1 A 0 MX	🔒 Secure	View