nfsn.dk

📜 Historical scan 2026-06-17 13:51:02  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nfsn.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 October 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.38.84.61 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by mx1.spamfilter.cc, mx2.spamfilter.cc and 1 more. 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   126ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   192ms
IPTTLPTRASNISP / OrgCIDRCountryCity
192.38.84.61 — rodeo.windenergy.dtu.dk AS1835 IDDQD-AS 192.38.0.0/17 🇩🇰 Denmark Kongens Lyngby

📧 MX Records#

3 records   132ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.spamfilter.cc 2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5
95.179.139.219
95.179.218.56		 —
95.179.139.219.vultrusercontent.com
puertomarket.tempurl.host		 AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC
10 — mx2.spamfilter.cc 2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5
95.179.139.219
95.179.218.56		 —
95.179.139.219.vultrusercontent.com
puertomarket.tempurl.host		 AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC
20 — mx3.spamfilter.cc 2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5
95.179.139.219
95.179.218.56		 —
95.179.139.219.vultrusercontent.com
puertomarket.tempurl.host		 AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC
AS20473 The Constant Company, LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records   428ms
TXT Record
3QGFii0svYWIqd87YSBipqGHwqWsHl73t9bjFcvC5COEM2Ad5PIyfgpgu1xrRrfQtJEnXn6ENZK0k2+V32aQOw==
HARICA-0BpV0qabkY0w9or6OLQ
v=spf1 mx -all
xz1qtmcgbkszb3j266prc3g9gnk9tvzf
yL+apEmP3ObwBRZYsTk8dhNk0jgZD0+X8yvShKimhKbL+N8sABWajq0Q2k/jfRVJsdK8yJ5DDHm9FPZKVEMCrA==

✉️ SPF#

PolicyRecord (nfsn.dk)
-all (hard fail) v=spf1 mx -all

📨 DMARC#

PolicyRecord (_dmarc.nfsn.dk)
p=quarantine v=DMARC1; p=quarantine; pct=100;

📬 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 2026-10-10 22:15:49
www CNAMEsan1.sitecore.dtu.dk (all on dtu.dk)
www vs bare domainDifferent networks
nfsn.dk: 192.38.84.61 (AS1835)
www.nfsn.dk: 52.236.166.178 (AS8075)
(all like this)
WildcardYes: any name under the zone resolves
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 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#

531ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

161ms
FieldValue
Serial2026041201
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-19 19:41:08
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2020-10-27
Expires2027-10-31 (376d)

🔗 Same registrant#

189 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)
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)
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)
dtub.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)
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)
i2.dkPunktum dk A/S (direct)
i4i.dkPunktum dk A/S (direct)

Showing 100 of 189.

📋 WHOIS#

⏱️ Lookup Timing#

NS
126ms
A
192ms
MX
132ms
AAAA
136ms
TXT
428ms
CAA
275ms
HTTPS
107ms
TLSA
146ms
SOA
161ms
MTA-STS
128ms
DNSSEC
531ms
SRV
0ms
Total
3072ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-10 22:15:49 1068ms 2 NS 1 A 3 MX 🔒 Secure
2026-10-09 20:17:12 1044ms 2 NS 1 A 3 MX 🔒 Secure
2026-10-05 16:57:37 3672ms 2 NS 1 A 3 MX 🔒 Secure
2026-09-30 16:37:47 4487ms 2 NS 1 A 3 MX 🔒 Secure
2026-09-30 08:12:27 1449ms 2 NS 1 A 3 MX 🔒 Secure
2026-09-27 20:21:35 1089ms 2 NS 1 A 3 MX 🔒 Secure
2026-09-15 07:04:32 875ms 2 NS 1 A 3 MX 🔒 Secure
2026-08-07 14:54:29 9614ms 2 NS 1 A 3 MX 🔒 Secure
2026-07-12 21:24:29 9303ms 2 NS 1 A 3 MX 🔒 Secure
2026-07-03 01:17:37 5338ms 2 NS 1 A 3 MX 🔒 Secure
2026-06-27 07:48:32 974ms 2 NS 1 A 3 MX 🔒 Secure
2026-06-22 15:08:53 1154ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-17 13:51:02 shown 3072ms 2 NS 1 A 3 MX 🔒 Secure
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