backtobusiness.dk

📜 Historical scan 2026-10-07 09:33:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

backtobusiness.dk is a .dk domain served by 2 nameservers (ns3.au.dk, ns4.au.dk). It was registered on 11 January 2018 (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. 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 89ms

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 147ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.45.20.48	900s	net.cavi.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 389ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.backtobusiness.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 00:51:48

www	185.45.20.48 (AS62138) (address records, no CNAME)
www vs bare domain	Same network backtobusiness.dk: 185.45.20.48 (AS62138) www.backtobusiness.dk: 185.45.20.48 (AS62138)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

381ms

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

🏷️ SOA#

125ms

Field	Value
Serial	4286
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 2026-10-14 20:16:07

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2018-01-11
Expires	2027-01-31 (106d)

🔗 Same registrant#

560 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)
au.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)
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 560.

📋 WHOIS#

⏱️ Lookup Timing#

89ms

147ms

65ms

AAAA

90ms

TXT

389ms

CAA

89ms

HTTPS

89ms

TLSA

156ms

SOA

125ms

MTA-STS

194ms

DNSSEC

381ms

SRV

201ms

Total

1291ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 00:51:48	813ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-14 19:43:26	1205ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-13 17:41:04	846ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-12 16:35:14	1177ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-11 14:48:09	522ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-10 13:34:51	983ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-09 11:45:14	1354ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-08 09:51:17	2642ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-07 09:33:12 shown	1291ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-06 03:52:32	956ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-05 03:42:47	348ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-04 03:24:16	636ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-03 03:23:25	455ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-02 03:20:06	1499ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-01 03:13:52	639ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-30 03:09:19	410ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-29 23:06:29	1460ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-28 22:49:34	561ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-27 22:27:57	486ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-26 22:06:58	484ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-25 21:56:43	600ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-24 21:41:14	776ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-23 21:02:25	511ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-23 18:05:20	544ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-18 04:59:06	689ms	2 NS 1 A 0 MX	🔒 Secure