au.dk

📜 Historical scan 2026-09-27 19:37:34 · ← 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 185.45.20.48 is hosted by Aarhus Universitet (AS62138) in Denmark. Mail is handled by au-dk.m-v1.mx.microsoft. 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 52ms

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 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.45.20.48	120s	—	AS62138	Aarhus Universitet	185.45.20.0/22	🇩🇰 Denmark	Aarhus

📧 MX Records#

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	900s	au-dk.m-v1.mx.microsoft	2a01:111:f403:ca04::4 2a01:111:f403:ca04::a 2a01:111:f403:ca09::24 2a01:111:f403:ca09::a 52.101.103.140 52.101.209.28 52.101.68.15 52.101.73.145	mail-db4pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 95ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

15 records 179ms

TXT Record
_globalsign-domain-verification=_s8DS-NJexcgiiwmad7BTd5cb8ZNjQB8ud5pKppY8K
_globalsign-domain-verification=E41x9CFBQXLhrTxSVKXK4DYo5vXJbfkyEdtKysnSd2
+Fnrpf/C6TrPbElr0B4fQGjNEYRd4T/ytAhMD8ykt/moByOIDbK0I6RMUBqJ0TVjSMNzyiD51EX7UjotrShqrg==
+iP7dH9sQ7U6Bizb5xnlnP1XHsguI/P3TfT9D3uaDJU=
cisco-ci-domain-verification=32d3e8846a2f05d750cd8b256efb1007d1dbe8b5cd6332d17768ebc5122110ab
eUWetivz3T6kSv0rVsZctuxW608nPMLSD2OOrysnUJY=
facebook-domain-verification=j5idhj3z2q5z0g278fbvz0r9a6514t
facebook-domain-verification=utyroagwj8u8kxmw2ic2lppqoyl7ci
feM2adQcQxv1whDnMIPyaXUfBUntVwKt0RByr6toeoU=
HARICA-6Qf59HXTkKhLQAnEiXF
HARICA-LFwo1IKesH7HjyJl7Vf
HARICA-TGkR4O06XFkACDLBINW
ppO+5CUA3y6OgCCZsRDPvU6O8Xixg5zXQ6Grj78SgEA/H44nZaQ+ZuSjSSQEPHw/JhIRBvtMLwOkhWl0YdFgag==
v=msv1 t=ACEC4DAA-8F71-4B7A-BF61-05179ED7BA3D
v=spf1 include:spf.au.dk -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.au.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#

10 records 55ms

Flags	Tag	Value
0	iodef	mailto:cert@au.dk
0	issue	amazon.com
0	issue	digicert.com
0	issue	globalsign.com
0	issue	harica.gr
0	issue	letsencrypt.org
0	issue	sectigo.com
0	issuewild	globalsign.com
0	issuewild	harica.gr
0	issuewild	letsencrypt.org

🧩 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: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 64ms

Service / Owner	Type	Cert association
SMTP _25._tcp.au-dk.m-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.au-dk.m-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.au-dk.m-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.au-dk.m-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…

🔐 DNSSEC#

125ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2015785259
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#

52ms

51ms

AAAA

54ms

TXT

179ms

CAA

55ms

HTTPS

49ms

TLSA

64ms

SOA

0ms

MTA-STS

63ms

DNSSEC

125ms

SRV

95ms

Total

978ms

🕐 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 shown	978ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 19:25:58	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