auff.dk

📜 Historical scan 2026-07-10 13:30:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

auff.dk is a .dk domain served by 2 nameservers (ns3.au.dk, ns4.au.dk). It was registered on 8 September 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.45.20.48 is hosted by Aarhus Universitet (AS62138) in Denmark. Mail is handled by auff-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 84ms

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 Records#

1 records 83ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.45.20.48	300s	—	AS62138	Aarhus Universitet	185.45.20.0/22	🇩🇰 Denmark	Aarhus

📧 MX Records#

1 records 77ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	auff-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 2a01:111:f403:ca09::8 52.101.68.8 52.101.73.1 52.101.73.11 52.101.73.16	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.98.16.71

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 102ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	50	100	5061	sipfed.online.lync.com

📝 TXT Records#

5 records 278ms

TXT Record
_globalsign-domain-verification=8JjpEX-f4WqiYBNn9dhdP7jaU6-UAkPY8Cc7TaIJtu
_globalsign-domain-verification=f04HcVS_YqkE8EFoPdbZA0WanzaBzDCnDnyaMEBazm
MS=ms41072763
n+HJ+G5k5RfClrilu5vynC1l/aEAFw0fhXzN7A2P6qetSLA11a/O7Gs46wzz6KHyQo2A4SlN1YO3jG/WTQTaFQ==
v=spf1 ip4:185.150.74.145 ip4:93.180.81.59 ip4:93.180.82.211 ip4:93.180.86.113 include:spf.comendosystems.com include:mail.techosting.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (auff.dk)
-all (hard fail)	v=spf1 ip4:185.150.74.145 ip4:93.180.81.59 ip4:93.180.82.211 ip4:93.180.86.113 include:spf.comendosystems.com include:mail.techosting.dk include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.auff.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:61dd4c279c4c7@dmarc.centerasecurity.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 08:32:15

www	185.45.20.48 (AS62138) (address records, no CNAME)
www vs bare domain	Same network auff.dk: 185.45.20.48 (AS62138) www.auff.dk: 185.45.20.48 (AS62138)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-auff-dk._domainkey.auff.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-auff-dk._domainkey.auff.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

185ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	36
Primary NS (MNAME)	infobloxgm3.au.dk
Responsible (RNAME)	auit-dns@au.dk
Refresh	10800s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	900s

📋 Registration#

WHOIS fetched 2026-10-12 00:38:17

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-09-08
Expires	2027-09-30 (348d)

🔗 Same registrant#

5 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
cetera.dk	Punktum dk A/S (direct)
feas.dk	Punktum dk A/S (direct)
forskningfonden.dk	Punktum dk A/S (direct)
forskningsfondensejendomsselskab.dk	Punktum dk A/S (direct)
universitetsboligerne.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

84ms

83ms

77ms

AAAA

75ms

TXT

278ms

CAA

104ms

HTTPS

83ms

TLSA

133ms

SOA

0ms

MTA-STS

100ms

DNSSEC

185ms

SRV

102ms

Total

1307ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 20:16:24	3083ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-19 14:03:42	1191ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-10 13:30:43 shown	1307ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 11:35:15	1980ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 23:57:08	852ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 20:39:57	917ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 14:01:20	702ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 02:21:50	2109ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-19 12:26:00	1098ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-19 02:14:03	2182ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 13:50:24	627ms	2 NS 1 A 1 MX	🔓 Insecure