serc.dk

📜 Historical scan 2026-08-28 09:10:11  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

serc.dk is a .dk domain served by 2 nameservers (ns1.risoe.dk, ns2.risoe.dk). It was registered on 13 January 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.38.84.65 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by windscanner-eu.mail.protection.outlook.com. 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   37ms
NameserverIP addressesPTRASN / ISP
ns1.risoe.dk 130.226.56.67 — AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.risoe.dk 130.226.56.68 — AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records   44ms
IPTTLPTRASNISP / OrgCIDRCountryCity
192.38.84.65 86400s redirector.ait.dtu.dk AS1835 IDDQD-AS 192.38.0.0/17 🇩🇰 Denmark Kongens Lyngby

📧 MX Records#

1 records   46ms
PriorityTTLMail ServerIP addressesPTRASN
0 86400s windscanner-eu.mail.protection.outlook.com 2a01:111:f403:ca04::5
2a01:111:f403:ca09::5
2a01:111:f403:ca09::8
2a01:111:f403:ca48::c
52.101.103.140
52.101.68.32
52.101.73.22
52.101.73.28		 mail-db3pr0202cu00205.inbound.protection.outlook.com
mail-am1pr04cu00105.inbound.protection.outlook.com
mail-as2pr05cu00100.inbound.protection.outlook.com
mail-miypr03cu00104.inbound.protection.outlook.com
mail-miypr02cu00204.inbound.protection.outlook.com
mail-db3pr0202cu00200.inbound.protection.outlook.com
mail-am7pr05cu00106.inbound.protection.outlook.com
mail-am7pr05cu00204.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#

ServiceCNAME / IP
🔷 Autodiscoverautodiscoverredirect.dtu.dk → 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   294ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 mail.win.dtu.dk

📝 TXT Records#

6 records   447ms
TXT Record
DigiCert dnsadmin@dtu.dk
fP/Qoeq4gDRch8HNARZjO9IiD02iOX/1vvLPEG5lS7Tpo95+VtNamU4lfmhMoIQ3pKQ06BrrTIVFheZEQRIndQ==
HARICA-Kb8U1EHJbAUpkmBHA9j
HARICA-os52FSpLHOoymC2PaUv
MS=ms66412024
v=spf1 include:dtu.dk include:spf.dtu.dk include:spf.peoplexs.com include:spf.protection.outlook.com ip4:94.231.107.25 ip4:94.231.107.21 ip4:93.90.115.122 ip4:193.162.253.0/24 include:spf.mx.fab-it.dk -all

✉️ SPF#

PolicyRecord (serc.dk)
-all (hard fail) v=spf1 include:dtu.dk include:spf.dtu.dk include:spf.peoplexs.com include:spf.protection.outlook.com ip4:94.231.107.25 ip4:94.231.107.21 ip4:93.90.115.122 ip4:193.162.253.0/24 include:spf.mx.fab-it.dk -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 2026-10-08 05:08:01
www CNAMEwebcluster7.sitecore.dtu.dk (all on dtu.dk)
www vs bare domainDifferent networks
serc.dk: 192.38.84.65 (AS1835)
www.serc.dk: 52.236.166.178 (AS8075)
(all like this)
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 12/10 · policy: -all

  • error include:spf.peoplexs.com has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)
  • error 12 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

97ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2026031301
Primary NS (MNAME)ns1.risoe.dk
Responsible (RNAME)research-it\@dtu@dk
Refresh86400s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-17 06:29:38
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2007-01-13
Expires2027-01-31 (97d)

🔗 Same registrant#

258 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)
altimetry.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)
biosensor.dkPunktum dk A/S (direct)
biotechacademy.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)
ce-readiness.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)
coherent-project.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)
dacin.dkPunktum dk A/S (direct)
danchip.dkPunktum dk A/S (direct)
danida-gecko.dkPunktum dk A/S (direct)
danish-universities.dkPROCOPA IT ApS
danishdays.dkPunktum dk A/S (direct)
danishuniversities.dkPROCOPA IT ApS
danscatt.dkSimply.com A/S
danske-universiteter.dkPROCOPA IT ApS
danskeuniversiteter.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)
dk-healthcareinnovation.dkPunktum dk A/S (direct)
dkcert.dkPunktum dk A/S (direct)
dnsc.dkPunktum dk A/S (direct)
doll-labs.dkPunktum dk A/S (direct)
dronevideotech.dkPunktum dk A/S (direct)
dsri.dkPunktum dk A/S (direct)
dtb.dkPunktum dk A/S (direct)
dtf.dkPunktum dk A/S (direct)
dtic.dkPunktum dk A/S (direct)
dtu-alarm.dkSimply.com A/S
dtu.dkPunktum dk A/S (direct)
dtub.dkPunktum dk A/S (direct)
dtubusiness.dkPunktum dk A/S (direct)
dtusat.dkPunktum dk A/S (direct)
dtutest.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)
eduhub.dkDANDOMAIN A/S
eduroam.dkPunktum dk A/S (direct)
eel-hatch.dkPunktum dk A/S (direct)
efsa.dkPunktum dk A/S (direct)
elchemea.dkPunktum dk A/S (direct)
energydata.dkPunktum dk A/S (direct)
energyinnovationhub.dkPunktum dk A/S (direct)
energylivelab.dkPunktum dk A/S (direct)
entrepreneurial.dkPunktum dk A/S (direct)
erc-electrothermo.dkPunktum dk A/S (direct)
esa-bic.dkPunktum dk A/S (direct)
esabic.dkPunktum dk A/S (direct)
euniversitet.dkPunktum dk A/S (direct)
eurocc.dkPunktum dk A/S (direct)
europæisk-ål.dkSimply.com A/S
executivemba.dkPunktum dk A/S (direct)
executivemmt.dkPunktum dk A/S (direct)
exmad.dkPunktum dk A/S (direct)
exray.dkPunktum dk A/S (direct)
fast-track.dkPunktum dk A/S (direct)

Showing 100 of 258.

📋 WHOIS#

⏱️ Lookup Timing#

NS
37ms
A
44ms
MX
46ms
AAAA
41ms
TXT
447ms
CAA
53ms
HTTPS
41ms
TLSA
593ms
SOA
0ms
MTA-STS
121ms
DNSSEC
97ms
SRV
294ms
Total
1549ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-18 21:25:26 1574ms 2 NS 1 A 1 MX 🔓 Insecure
2026-08-28 09:10:11 shown 1549ms 2 NS 1 A 1 MX 🔓 Insecure
2026-07-02 11:54:10 3147ms 2 NS 1 A 1 MX 🔓 Insecure
2026-06-25 17:17:20 1270ms 2 NS 1 A 1 MX 🔓 Insecure
2026-06-18 07:28:42 6521ms 2 NS 1 A 1 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone