kastellet.dk

Records from scan: 2026-10-15 11:43:53  ·  692ms total  ·  last checked 2026-10-18 14:26 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kastellet.dk is a .dk domain served by 5 nameservers (ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info and 2 more). It was registered on 21 January 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 51.158.216.235 is hosted by Scaleway SAS (AS12876) in The Netherlands. Mail is handled by relay1.netnames.net, relay2.netnames.net. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

5 records   44ms
NameserverIP addressesPTRASN / ISP
ns1.brandshelter.com 193.227.117.9
2a04:2b00:14cc::9		 ns1.brandshelter.com
—		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
ns2.brandshelter.de 194.50.187.11
2a04:2b00:14dd::11		 ns2.brandshelter.de
ns11.j.centralnic-dns.com		 AS207021 ipcom GmbH
AS1921 ipcom GmbH
ns3.brandshelter.info 194.0.182.12
2a04:2b00:14ee::12		 ns3.brandshelter.info
ns12.k.centralnic-dns.com		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
ns4.brandshelter.net 193.227.117.10
2a04:2b00:14cc::10		 ns4.brandshelter.net
ns10.i.centralnic-dns.com		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
ns5.brandshelter.us 194.50.187.14
2a04:2b00:14dd::14		 ns5.brandshelter.us
ns14.j.centralnic-dns.com		 AS207021 ipcom GmbH
AS1921 ipcom GmbH

🌍 A Records#

1 records   57ms
IPTTLPTRASNISP / OrgCIDRCountryCity
51.158.216.235 300s 51-158-216-235.lb.nl-ams.scw.cloud AS12876 Scaleway SAS 51.158.0.0/15 🇳🇱 The Netherlands Haarlem

📧 MX Records#

2 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
10 21600s relay1.netnames.net 185.26.230.83 relay1.netnames.net —
20 21600s relay2.netnames.net 185.26.230.89 relay2.netnames.net —

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records   190ms
TXT Record
_globalsign-domain-verification=5Cmeeyj12ZrMJX_3nwcKwwCEGb_aO86dGwNRB4GF7r
_globalsign-domain-verification=bRDZsrBm8Fw28ws4cC_GxzuBZhGu0VR8ZqsaCPyD39
_globalsign-domain-verification=E2QlHHZcEVriljhJe6sTIbwB6jmDzehWKhUkfGzMsA
_globalsign-domain-verification=EK5nDLxvNdoUsdxBN5iuJRQ08FWwU3gq_Ff49GLyKu
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_dmarc.kastellet.dk)
p=reject v=DMARC1; p=reject; sp=reject;

📬 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#

checked 2026-10-15 11:43:53
www51.158.216.235 (AS12876) (address records, no CNAME)
www vs bare domainSame network
kastellet.dk: 51.158.216.235 (AS12876)
www.kastellet.dk: 51.158.216.235 (AS12876)
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
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#

146ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

58ms
FieldValue
Serial2025114079
Primary NS (MNAME)ns1.brandshelter.com
Responsible (RNAME)tech@brandshelter.com
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-16 13:07:55
FieldValue
RegistrarKey-Systems GmbH
Registered2000-01-21
Expires2027-03-31 (163d)

🔗 Same registrant#

148 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
1n-mil.dkKey-Systems GmbH
89433099.dkKey-Systems GmbH
atwaal.dkKey-Systems GmbH
basis-i-forsvaret.dkA/S SCANNET
beredskabsskolen.dkKey-Systems GmbH
beredskabsstyrelsen.dkKey-Systems GmbH
beredskabsudd.dkKey-Systems GmbH
besoegsdag.dkA/S SCANNET
blivbefalingsmand.dkKey-Systems GmbH
blivfrivillig.dkKey-Systems GmbH
blivofficer.dkA/S SCANNET
blivoficer.dkA/S SCANNET
brandfareindeks.dkKey-Systems GmbH
brandkampagner.dkKey-Systems GmbH
brandsmart.dk1API GmbH
brs.dkKey-Systems GmbH
brsnet.dk1API GmbH
brsnj.dkKey-Systems GmbH
camptv.dkKey-Systems GmbH
cfcssitcen.dkKey-Systems GmbH
civiliforsvaret.dkKey-Systems GmbH
cyber-landsholdet.dkKey-Systems GmbH
cyberhunt.dkKey-Systems GmbH
cyberlandsholdet.dkKey-Systems GmbH
cybersituation.dkKey-Systems GmbH
cybersituationscenter.dkKey-Systems GmbH
danish-defence.dkKey-Systems GmbH
danishdefence.dkKey-Systems GmbH
danishdefense.dkKey-Systems GmbH
defence-command.dkKey-Systems GmbH
defence.dkKey-Systems GmbH
demars.dkKey-Systems GmbH
denkongeligelivgarde.dkKey-Systems GmbH
dk-cc.dkKey-Systems GmbH
dkcc.dkKey-Systems GmbH
efterretningsnaevn.dkKey-Systems GmbH
elev-i-forsvaret.dkA/S SCANNET
eleviforsvaret.dkA/S SCANNET
eliteuddannelser.dkA/S SCANNET
erhvervspraktikiforsvaret.dkA/S SCANNET
etforsvarfordinfremtid.dkKey-Systems GmbH
ewkmp.dkPunktum dk A/S (direct)
f-16pilot.dkKey-Systems GmbH
faglaert-i-forsvaret.dkA/S SCANNET
faglaertiforsvaret.dkA/S SCANNET
faglært-i-forsvaret.dkA/S SCANNET
faglærtiforsvaret.dkA/S SCANNET
fauk.dkKey-Systems GmbH
fdd-skp.dkKey-Systems GmbH
fe-mail.dkKey-Systems GmbH
fechallenges.dkKey-Systems GmbH
fefsv.dkKey-Systems GmbH
fiin.dkKey-Systems GmbH
fkit-mil.dkPunktum dk A/S (direct)
fko.dkKey-Systems GmbH
flaaden500.dkKey-Systems GmbH
flymekaniker.dkKey-Systems GmbH
flyvevaabnetssergentskole.dkKey-Systems GmbH
flåden.dkPunktum dk A/S (direct)
fmnks.dkKey-Systems GmbH
forpers.dkKey-Systems GmbH
forsvarets-efterretningstjeneste.dkKey-Systems GmbH
forsvarets-koereskole.dkKey-Systems GmbH
forsvarets.dkKey-Systems GmbH
forsvaretsdag.dkKey-Systems GmbH
forsvaretspsykologer.dkKey-Systems GmbH
forsvaretsudannelser.dkKey-Systems GmbH
forsvaretsuddannelser.dkKey-Systems GmbH
forsvarogberedskab.dkKey-Systems GmbH
forsvarsavisen.dkKey-Systems GmbH
forsvarsgalleri.dkKey-Systems GmbH
forsvarskanalen.dkKey-Systems GmbH
forsvarskanalenftp.dkKey-Systems GmbH
forsvarskommandoen.dkKey-Systems GmbH
forsvarsministeren.dkKey-Systems GmbH
forsvarsministeriet.dkKey-Systems GmbH
forsvarsministerietspersonalestyrelse.dkKey-Systems GmbH
forsvarsnetvaerket.dkKey-Systems GmbH
forsvart.dkKey-Systems GmbH
fredogsikkerhed.dkKey-Systems GmbH
froemandskorpset.dkKey-Systems GmbH
fsr-itu.dkKey-Systems GmbH
fsv.dkKey-Systems GmbH
ftv.dkKey-Systems GmbH
geoint.dkKey-Systems GmbH
ghr.dkKey-Systems GmbH
gov-csirt.dkKey-Systems GmbH
hdfyn.dkINTERNET 123 ApS
hdmvj.dkINTERNET 123 ApS
hdsej.dkINTERNET 123 ApS
hjemmevaernet.dkKey-Systems GmbH
hjemmeværnet.dk1API GmbH
hjk.dkKey-Systems GmbH
hjv.dkPunktum dk A/S (direct)
hjvv2.dkKey-Systems GmbH
hærens-officersskole.dkKey-Systems GmbH
ildenfarligven.dkKey-Systems GmbH
incidentoperator.dkKey-Systems GmbH
infocenter-kastellet.dkKey-Systems GmbH
jdloc.dkKey-Systems GmbH

Showing 100 of 148.

📋 WHOIS#

⏱️ Lookup Timing#

NS
44ms
A
57ms
MX
39ms
AAAA
42ms
TXT
190ms
CAA
57ms
HTTPS
46ms
TLSA
66ms
SOA
58ms
MTA-STS
65ms
DNSSEC
146ms
SRV
54ms
Total
692ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 11:43:53 shown 692ms 5 NS 1 A 2 MX 🔒 Secure
2026-10-08 20:58:51 1910ms 5 NS 1 A 2 MX 🔒 Secure
2026-10-01 19:29:45 791ms 5 NS 1 A 2 MX 🔒 Secure
2026-09-27 18:46:53 690ms 5 NS 1 A 2 MX 🔒 Secure
2026-09-24 17:08:41 630ms 5 NS 1 A 2 MX 🔒 Secure
2026-09-21 18:12:44 912ms 5 NS 1 A 2 MX 🔒 Secure
2026-09-19 07:22:19 939ms 5 NS 1 A 2 MX 🔒 Secure
2026-09-12 18:54:58 842ms 5 NS 1 A 2 MX 🔒 Secure
2026-09-05 11:27:59 852ms 5 NS 1 A 2 MX 🔒 Secure
2026-08-28 04:31:51 1147ms 5 NS 1 A 2 MX 🔒 Secure
2026-08-27 12:42:36 620ms 5 NS 1 A 2 MX 🔒 Secure
2026-08-20 02:11:19 3078ms 5 NS 1 A 2 MX 🔒 Secure
2026-08-15 11:26:27 3273ms 5 NS 1 A 2 MX 🔒 Secure
2026-08-09 07:28:39 1142ms 5 NS 1 A 2 MX 🔒 Secure
2026-07-31 12:54:09 1100ms 5 NS 1 A 2 MX 🔒 Secure
2026-07-23 18:34:21 10112ms 5 NS 1 A 2 MX 🔒 Secure
2026-07-16 13:42:06 2380ms 5 NS 1 A 2 MX 🔒 Secure
2026-07-09 04:03:29 2248ms 5 NS 1 A 2 MX 🔒 Secure
2026-07-02 14:04:11 1001ms 5 NS 1 A 2 MX 🔒 Secure
2026-06-26 18:00:16 2038ms 5 NS 1 A 2 MX 🔒 Secure
2026-06-23 12:50:24 4448ms 5 NS 1 A 2 MX 🔒 Secure
2026-06-22 11:50:50 932ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-22 05:28:20 997ms 5 NS 1 A 2 MX 🔒 Secure
2026-06-21 00:17:11 3020ms 5 NS 1 A 2 MX 🔒 Secure
2026-06-17 14:02:02 4008ms 5 NS 1 A 2 MX 🔒 Secure
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