zackenberg.dk DNS records

🖥️ Nameservers2 records 40ms

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 34ms

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

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	zackenberg.dk → 185.45.20.48
🔶 Autoconfig	zackenberg.dk → 185.45.20.48

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 196ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.zackenberg.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.zackenberg.dk	zackenberg.dk

🔗 TLSA / DANE

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

🔐 DNSSEC104ms

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

🏷️ SOA0ms

Field	Value
Serial	2011025720
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

40ms

A

34ms

MX

35ms

AAAA

38ms

TXT

196ms

CAA

38ms

HTTPS

45ms

TLSA

87ms

SOA

0ms

MTA-STS

59ms

DNSSEC

104ms

SRV

59ms

Total

620ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 21:27:38	620ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-30 12:25:42	1977ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-29 10:31:44	605ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-28 02:06:52	635ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-27 01:01:47	636ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-24 23:07:00	8727ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-23 22:18:30	717ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-22 21:17:31	941ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-21 21:15:28	979ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-20 21:03:25	770ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-19 20:54:50	4043ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-18 20:38:28	1619ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-17 09:09:30	1201ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-16 08:37:18	938ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-15 06:09:04	2308ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-13 18:30:05	710ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-11 16:14:47	790ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-10 11:00:05	3471ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-09 09:58:59	690ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-08 01:04:47	2593ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-06 02:27:17	754ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-31 12:12:32	8655ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-28 17:39:50	646ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-27 06:29:16	810ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-26 06:18:01	727ms	2 NS 1 A 0 MX	🔒 Secure	View