au.dk

📜 Historical scan 2026-09-26 19:25:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

au.dk is a .dk domain served by 2 nameservers (ns3.au.dk, ns4.au.dk). It was registered on 2 February 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.45.20.49 is hosted by Aarhus Universitet (AS62138) in Denmark. The zone is DNSSEC-signed and validates, 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 38ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.45.20.49	900s	ced-apps.au.dk coursesetup-test.carsten.medu.au.dk dashboard-gios.au.dk er-det-fredag-i-ffb.dk ipure8.au.dk test-ced-apps.au.dk	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 Records#

1 records 256ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.au.dk)
p=reject	v=DMARC1;p=reject;pct=100;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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 14:18:15

www CNAME	www.au.dk.cdn.cloudflare.net (all on cloudflare.net) → 104.20.17.106 172.66.153.212 2606:4700:10::6814:116a 2606:4700:10::ac42:99d4 (AS13335)
www vs bare domain	Different networks au.dk: 185.45.20.48 (AS62138) www.au.dk: 104.20.17.106 172.66.153.212 2606:4700:10::6814:116a 2606:4700:10::ac42:99d4 (AS13335) (all like this)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u5089797.wl048.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u5089797.wl048.sendgrid.net	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: 0/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.au.dk	19R-NWRJCATluX6xkU2TD7PASz6Z6T53avzAi4fxIjM
TXT	_acme-challenge.au.dk	3BpdhKbZXg9zudk2zzxzlBAH8FFBRzgbz0onZvbzfjo
TXT	_acme-challenge.au.dk	5UwlIHv6EU2WemRg_O1IAHA1iXkDwamdtd5Ksv8fbBI
TXT	_acme-challenge.au.dk	E9bSUwBxd6Z-RAsSTOdzc2wXed776ssSXAuODB9BlZU
TXT	_acme-challenge.au.dk	EzBndZoLGGj28o9IKa4OLGMyVeXzOMM7tGUTuWxDKk4
TXT	_acme-challenge.au.dk	FrFGbcot1xoXT9sLv50rF_jKxq4tpjjOd8uVqo-T8aI
TXT	_acme-challenge.au.dk	Hc8Sm_7xjd5Nq6bMYiEL9KkkuqMfeqMasMCPmPYTRCw
TXT	_acme-challenge.au.dk	IwtxgQ3Xj8MSsMo3ePfG0J8uhQnavFt8VCU0ymQQsVs
TXT	_acme-challenge.au.dk	LzP5kB3xlQoyUBSHZUqNV2mMwX63g6cDcF1cDDORAZg
TXT	_acme-challenge.au.dk	NrLOdz56_A7IwPyG0P9r2IKGEXjKQFRwnrgiRNml-T8
TXT	_acme-challenge.au.dk	PxDMqdd1z22FPD7EurqH-USZX-T-9fPy5NQw5SLHsRA
TXT	_acme-challenge.au.dk	Sd6apWqHeEB-jx2iM_Ij-E89AjtzXG_m2y55Fr4b8r4
TXT	_acme-challenge.au.dk	WGbENoqF2TecBu9jY7zVimv2Vap6_OY3Uf3yjKxeYBg
TXT	_acme-challenge.au.dk	WlWKBk95xuND3mc3Hymc70s5trKJVIBNTEIWuMxiGbo
TXT	_acme-challenge.au.dk	XA7-Hp32R-8WJCe4M3cHwk0xY8YjZ_Metc_kRJ3A6X0
TXT	_acme-challenge.au.dk	XDKUZLRxe3cUMllsRFBcsezNCyboJyBNi_V1RZG9jps
TXT	_acme-challenge.au.dk	Xz2Q_pmuhDigxrdDB08L-kotfWP4H0iVWzyXYBxNgus
TXT	_acme-challenge.au.dk	alZQhVDObsPMQKCjc3nZt_GDOp57WjcUnVr-E2UINjE
TXT	_acme-challenge.au.dk	eYTdOep1V5eBHhx6Cz6n7wkAFUDFx1qhLHMcWhV7exQ
TXT	_acme-challenge.au.dk	edrzDW_1vh_f_PF8pPNKPUOL3QKnQ5nqJPWTFptkQtU
TXT	_acme-challenge.au.dk	fLjfy8cyjmrI42qBS6R1i65KAL-S7oa_VL8VHM2Ej4o
TXT	_acme-challenge.au.dk	hQ9ag0ZDuY43GT2-Ew3cuflAlejmrAGcq0iyC97EScI
TXT	_acme-challenge.au.dk	iMOrSzghiWbIJG2h7UBzsIYJvg6v7aqLk1jsX-pYHLo
TXT	_acme-challenge.au.dk	mUJEjecph-VTHhE_Gf9bB6Sk4KVv2O-jt0GytJVau4o
TXT	_acme-challenge.au.dk	oUgoI7Tk7vqbOM5TYU1j2MA3gKcEc-Inlx-Dy585ADA
TXT	_acme-challenge.au.dk	q8pT94GXB35FyGOrs7n1yh9lU67zJPyGQPctXf1WmeE
TXT	_acme-challenge.au.dk	qx4i8THDDGwptbC634CQ_0eLh_h4PrJeo7_ceZp0FFo
TXT	_acme-challenge.au.dk	rkHEUdn8cC0jSq4s1uqg5O-feXACQ0R5MVO5GVU847M
TXT	_acme-challenge.au.dk	sg5Wu43OmQwFQ2tWCU7zaxYdlfS4ldsm9HAb34OaE8c
TXT	_acme-challenge.au.dk	v9vyK0EVwI-_Sj4p0c-77idKImZR1tbBEfFljc0VhN8
TXT	_acme-challenge.au.dk	yQ394OJGQJ8N0WyeFCaUB-4K2_eKn1Sw6O83Wag5GUc
TXT	_acme-challenge.au.dk	yVk9SgnW3hctjhWjd5pgX3Ppc9Z__QBJkPwfZJoqQsw

🔗 TLSA / DANE#

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

🔐 DNSSEC#

73ms

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

🏷️ SOA#

0ms

Field	Value
Serial	5169
Primary NS (MNAME)	infobloxgm3.au.dk
Responsible (RNAME)	auit-dns@au.dk
Refresh	10800s
Retry	1080s
Expire	2419200s
Minimum (neg-cache TTL)	900s

📋 Registration#

WHOIS fetched 2026-10-12 08:14:39

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1996-02-02
Expires	2027-03-31 (165d)

🔗 Same registrant#

564 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
1mmper100y.dk	Punktum dk A/S (direct)
9april1940.dk	Punktum dk A/S (direct)
aaasc.dk	Punktum dk A/S (direct)
aaeu.dk	Punktum dk A/S (direct)
aarhus-bss.dk	Punktum dk A/S (direct)
aarhus-uni.dk	Punktum dk A/S (direct)
aarhusbotaniskehave.dk	Punktum dk A/S (direct)
aarhusbss.dk	Punktum dk A/S (direct)
aarhusbusinessuniversity.dk	Punktum dk A/S (direct)
aarhuslifescience.dk	Punktum dk A/S (direct)
aarhusuniversitet.dk	Punktum dk A/S (direct)
aasbss.dk	AARHUS UNIVERSITET
aaubot.dk	Punktum dk A/S (direct)
aauherbarium.dk	Punktum dk A/S (direct)
accountingdictionary.dk	Punktum dk A/S (direct)
acrobatic.dk	Simply.com A/S
acutemedicine.dk	Punktum dk A/S (direct)
adaptivmusik.dk	Punktum dk A/S (direct)
addition10.dk	Punktum dk A/S (direct)
afmagt.dk	AARHUS UNIVERSITET
afn.dk	Punktum dk A/S (direct)
aglance.dk	Punktum dk A/S (direct)
agrisci.dk	Punktum dk A/S (direct)
agrivolt.dk	AARHUS UNIVERSITET
agroecology.dk	Punktum dk A/S (direct)
agrsci.dk	Punktum dk A/S (direct)
agse.dk	Punktum dk A/S (direct)
akademisk-dannelse.dk	Punktum dk A/S (direct)
akademiskdannelse.dk	Punktum dk A/S (direct)
aktuelnaturvidenskab.dk	Punktum dk A/S (direct)
aktuelviden.dk	Punktum dk A/S (direct)
akutforskning.dk	Punktum dk A/S (direct)
alfam.dk	Punktum dk A/S (direct)
almass.dk	Punktum dk A/S (direct)
animalgenomics.dk	Punktum dk A/S (direct)
annatto.dk	Punktum dk A/S (direct)
ant-manure.dk	Punktum dk A/S (direct)
antikmuseet.dk	Punktum dk A/S (direct)
aphandra.dk	Punktum dk A/S (direct)
artemisiaprojekt.dk	Punktum dk A/S (direct)
asb.dk	Punktum dk A/S (direct)
asbcast.dk	Punktum dk A/S (direct)
asbfest.dk	Punktum dk A/S (direct)
asbss.dk	Punktum dk A/S (direct)
asbstudent.dk	Punktum dk A/S (direct)
asbyoualumni.dk	Punktum dk A/S (direct)
astronomibloggen.dk	Punktum dk A/S (direct)
au-clinical.dk	AARHUS UNIVERSITET
au-sat.dk	Punktum dk A/S (direct)
aubot.dk	Punktum dk A/S (direct)
aucdn.dk	Punktum dk A/S (direct)
audev.dk	AARHUS UNIVERSITET
aufoodscience.dk	Punktum dk A/S (direct)
auh-clinical.dk	AARHUS UNIVERSITET
auherbarium.dk	Punktum dk A/S (direct)
auherning.dk	AARHUS UNIVERSITET
aukrise.dk	Punktum dk A/S (direct)
aumso2.dk	Punktum dk A/S (direct)
ausat.dk	Punktum dk A/S (direct)
autest.dk	AARHUS UNIVERSITET
authorsinaarhus.dk	Punktum dk A/S (direct)
autravel.dk	Punktum dk A/S (direct)
backtobusiness.dk	Punktum dk A/S (direct)
badm.dk	Punktum dk A/S (direct)
behandlingsportalen.dk	Punktum dk A/S (direct)
beisa.dk	Punktum dk A/S (direct)
beready.dk	Punktum dk A/S (direct)
betterbarleybynbt.dk	Punktum dk A/S (direct)
bibfilm.dk	Punktum dk A/S (direct)
biclabs.dk	Punktum dk A/S (direct)
biforskning.dk	Punktum dk A/S (direct)
biobase.dk	Punktum dk A/S (direct)
biochange.dk	Punktum dk A/S (direct)
biodiversitetsraadet.dk	Punktum dk A/S (direct)
biodiversitetsrådet.dk	Punktum dk A/S (direct)
biodiversity-in-the-silicon-age.dk	Punktum dk A/S (direct)
biodivraadet.dk	Punktum dk A/S (direct)
biodivrådet.dk	Punktum dk A/S (direct)
biodjurs.dk	Punktum dk A/S (direct)
bioinformatik.dk	Punktum dk A/S (direct)
biomedicaldesign.dk	Simply.com A/S
bionoegle.dk	Punktum dk A/S (direct)
biophys.dk	AARHUS UNIVERSITET
bioraadet.dk	Punktum dk A/S (direct)
bioresource.dk	Punktum dk A/S (direct)
biorådet.dk	Punktum dk A/S (direct)
biosafetrain.dk	Punktum dk A/S (direct)
biozinc.dk	Punktum dk A/S (direct)
birc.dk	Punktum dk A/S (direct)
bliv-astronaut.dk	Punktum dk A/S (direct)
blivastronaut.dk	Punktum dk A/S (direct)
blodsukkerdata.dk	Punktum dk A/S (direct)
blodtryksdata.dk	Punktum dk A/S (direct)
bookstudievalg.dk	Punktum dk A/S (direct)
borgernesitsikkerhed.dk	Punktum dk A/S (direct)
borneforsk.dk	Punktum dk A/S (direct)
brics.dk	Punktum dk A/S (direct)
brugerinddragelse.dk	Punktum dk A/S (direct)
bsu-sdr.dk	Punktum dk A/S (direct)
businessfactory.dk	Punktum dk A/S (direct)

Showing 100 of 564.

📋 WHOIS#

⏱️ Lookup Timing#

38ms

43ms

AAAA

28ms

TXT

256ms

CAA

51ms

HTTPS

50ms

TLSA

60ms

SOA

0ms

MTA-STS

55ms

DNSSEC

73ms

SRV

60ms

Total

603ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 14:18:15	1863ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-15 12:41:53	1560ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 12:02:09	2189ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 09:55:29	609ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 08:01:34	1178ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 07:03:27	1042ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 05:45:36	1008ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 03:08:20	3158ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 03:03:34	606ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 15:52:29	3200ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-06 15:21:13	2907ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 14:15:33	2837ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 13:48:07	2020ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 13:45:41	1210ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 13:44:02	2483ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 13:39:58	2808ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 13:36:32	853ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 17:21:19	1099ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 19:54:29	941ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 19:37:34	978ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 19:25:58 shown	603ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-26 01:12:21	1245ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 01:06:59	461ms	2 NS 0 A 0 MX	🔒 Secure
2026-09-24 07:18:01	879ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 14:42:37	2013ms	2 NS 1 A 1 MX	🔒 Secure