dtub.dk

📜 Historical scan 2026-07-02 00:49:38  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dtub.dk is a .dk domain served by 2 nameservers (ns.cvt.dk, ns2.cvt.dk). It was registered on 8 July 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.38.67.25 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by mail.cvt.dk, mx.cvt.dk. The zone is not DNSSEC-signed, has no 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   35ms
NameserverIP addressesPTRASN / ISP
ns.cvt.dk 192.38.67.2 — AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.cvt.dk 192.38.67.3 — AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records   33ms
IPTTLPTRASNISP / OrgCIDRCountryCity
192.38.67.25 86400s web.cvt.dk AS1835 IDDQD-AS 192.38.0.0/17 🇩🇰 Denmark Kongens Lyngby

📧 MX Records#

2 records   33ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mail.cvt.dk 192.38.67.24 rogeth.cvt.dk AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
100 86400s mx.cvt.dk 192.38.67.3 — AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   381ms
TXT Record
v=spf1 mx ~all

✉️ SPF#

PolicyRecord (dtub.dk)
~all (soft fail) v=spf1 mx ~all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-07 14:28:49
www CNAMEwww.cvt.dk (all on cvt.dk)
www vs bare domainSame network
dtub.dk: 192.38.67.25 (AS1835)
www.dtub.dk: 192.38.67.25 (AS1835)
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

53ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

32ms
FieldValue
Serial2022060201
Primary NS (MNAME)ns.cvt.dk
Responsible (RNAME)sysop@cvt.dk
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-13 13:26:05
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2003-07-08
Expires2028-07-31 (649d)

🔗 Same registrant#

194 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).

DomainRegistrar
3g-center.dkSimply.com A/S
4m-centre.dkSimply.com A/S
abyss.dkSimply.com A/S
accuwind.dkPunktum dk A/S (direct)
alumniplus.dkPunktum dk A/S (direct)
antibiotikaresistens.dkPunktum dk A/S (direct)
arches2012.dkSimply.com A/S
aribah.dkPunktum dk A/S (direct)
bear-hearing.dkSimply.com A/S
bigq.dkSimply.com A/S
bigscience.dkWEB SOLUTIONS A/S
biobrug.dkPunktum dk A/S (direct)
biogasupgrade.dkPunktum dk A/S (direct)
boernenesuniversitet.dkSimply.com A/S
bonus-optimus.dkPunktum dk A/S (direct)
borger-cert.dkPunktum dk A/S (direct)
bridgingthegap.dkSimply.com A/S
børnenesuniversitet.dkPunktum dk A/S (direct)
carbospot.dkPunktum dk A/S (direct)
ceinitiative.dkPunktum dk A/S (direct)
cemac.dkPunktum dk A/S (direct)
cert.dkPunktum dk A/S (direct)
cewqo2017.dkSimply.com A/S
chemsafe.dkPunktum dk A/S (direct)
chips-competence-centre.dkSimply.com A/S
cifq.dkPunktum dk A/S (direct)
computerome.dkPunktum dk A/S (direct)
covidtest.dkPunktum dk A/S (direct)
cpcs.dkPunktum dk A/S (direct)
cph-food.dkPunktum dk A/S (direct)
cphfuture.dkPunktum dk A/S (direct)
cvt.dkPunktum dk A/S (direct)
da-gate.dkPunktum dk A/S (direct)
danish-universities.dkPROCOPA IT ApS
danishdays.dkPunktum dk A/S (direct)
danishuniversities.dkPROCOPA IT ApS
danske-universiteter.dkPROCOPA IT ApS
darenet.dkPunktum dk A/S (direct)
datasikkerhedsbladet.dkPunktum dk A/S (direct)
dccsm.dkPunktum dk A/S (direct)
dcf-denmark.dkPunktum dk A/S (direct)
dcrs.dkPunktum dk A/S (direct)
deic.dkPunktum dk A/S (direct)
derisk.dkPunktum dk A/S (direct)
detrigtigelaboratorium.dkPunktum dk A/S (direct)
difres.dkDANDOMAIN A/S
dig-e.dkPunktum dk A/S (direct)
digitalenergy.dkPunktum dk A/S (direct)
digitalenergylab.dkPunktum dk A/S (direct)
dix.dkPunktum dk A/S (direct)
dk-cert.dkPunktum dk A/S (direct)
dkcert.dkPunktum dk A/S (direct)
dnsc.dkPunktum dk A/S (direct)
dsri.dkPunktum dk A/S (direct)
dtb.dkPunktum dk A/S (direct)
dtf.dkPunktum dk A/S (direct)
dtu-alarm.dkSimply.com A/S
dtu.dkPunktum dk A/S (direct)
dtubusiness.dkPunktum dk A/S (direct)
dtusat.dkPunktum dk A/S (direct)
dtv.dkPunktum dk A/S (direct)
dunet.dkDanmarks Tekniske Universitet
duraledge.dkPunktum dk A/S (direct)
e-universitet.dkPunktum dk A/S (direct)
eduroam.dkPunktum dk A/S (direct)
efsa.dkPunktum dk A/S (direct)
elchemea.dkPunktum dk A/S (direct)
energydata.dkPunktum dk A/S (direct)
energylivelab.dkPunktum dk A/S (direct)
entrepreneurial.dkPunktum dk A/S (direct)
erc-electrothermo.dkPunktum dk A/S (direct)
esabic.dkPunktum dk A/S (direct)
eurocc.dkPunktum dk A/S (direct)
executivemba.dkPunktum dk A/S (direct)
executivemmt.dkPunktum dk A/S (direct)
findit.dkPunktum dk A/S (direct)
fisker-forsker.dkDANDOMAIN A/S
flabbergast-bio.dkPunktum dk A/S (direct)
fleksibelenergi.dkPunktum dk A/S (direct)
flexibleenergi.dkPunktum dk A/S (direct)
flexibleenergy.dkPunktum dk A/S (direct)
formalmethods.dkPunktum dk A/S (direct)
forskningsfronten.dkPunktum dk A/S (direct)
forskningsnet-cert.dkPunktum dk A/S (direct)
forskningsnet.dkPunktum dk A/S (direct)
forskningsnettet.dkPunktum dk A/S (direct)
forskningsportalen.dkPunktum dk A/S (direct)
fsknet.dkPunktum dk A/S (direct)
fusionsenergi.dkPunktum dk A/S (direct)
g2v2g.dkPunktum dk A/S (direct)
galathea3.dkPunktum dk A/S (direct)
genlife.dkPunktum dk A/S (direct)
gluckstad.dkPunktum dk A/S (direct)
havforskning.dkPunktum dk A/S (direct)
hawc2.dkPunktum dk A/S (direct)
hco2020.dkPunktum dk A/S (direct)
hcoersted2020.dkPunktum dk A/S (direct)
healthyoushare.dkPunktum dk A/S (direct)
hightechsummit.dkPunktum dk A/S (direct)
hydrograv.dkPunktum dk A/S (direct)

Showing 100 of 194.

📋 WHOIS#

⏱️ Lookup Timing#

NS
35ms
A
33ms
MX
33ms
AAAA
36ms
TXT
381ms
CAA
37ms
HTTPS
38ms
TLSA
122ms
SOA
32ms
MTA-STS
104ms
DNSSEC
53ms
SRV
153ms
Total
796ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 14:28:49 1081ms 2 NS 1 A 2 MX 🔓 Insecure
2026-07-02 00:49:38 shown 796ms 2 NS 1 A 2 MX 🔓 Insecure
2026-06-17 04:55:32 705ms 2 NS 1 A 2 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone