kronborgb2b.dk

📜 Historical scan 2026-10-03 22:50:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kronborgb2b.dk is a .dk domain served by 2 nameservers (ns6.sitnet.dk, ns7.sitnet.dk). It was registered on 23 December 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 82.103.135.52 is hosted by Asergo Holding ApS (AS30736) in Denmark. Mail is handled by mx01.dandomain.dk. 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 98ms

Nameserver	IP addresses	PTR	ASN / ISP
ns6.sitnet.dk	107.162.234.197 2604:e180:1071::3:1	— —	AS55002 F5, Inc. AS55002 F5, Inc.
ns7.sitnet.dk	107.162.176.221 2604:e180:1071::ffff:6ba2:b0dd	— —	AS55002 F5, Inc. AS55002 F5, Inc.

🌍 A Records#

1 records 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
82.103.135.52	3600s	e82-103-135-52s.cust.asergo.com	AS30736	Asergo Holding ApS	82.103.128.0/18	🇩🇰 Denmark	—

📧 MX Records#

1 records 74ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx01.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 717ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (kronborgb2b.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.kronborgb2b.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; rua=mailto:tcod1eh2@ag.eu.dmarcadvisor.com;

📬 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 2026-10-17 20:46:40

www CNAME	kronborgb2b.dk (all on kronborgb2b.dk) → 82.103.135.52 (AS30736)
www vs bare domain	Same network kronborgb2b.dk: 82.103.135.52 (AS30736) www.kronborgb2b.dk: 82.103.135.52 (AS30736)
Wildcard	No
Denial of existence	NSEC3 · 10 iterations · 5-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

6 found

Selector	CNAME	Key
default	—	Revoked (empty key)
dkim	—	Revoked (empty key)
k1	—	Revoked (empty key)
mail	—	Revoked (empty key)
s1	—	Revoked (empty key)
s2	—	Revoked (empty key)

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

103ms

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

🏷️ SOA#

72ms

Field	Value
Serial	4339
Primary NS (MNAME)	ns6.sitnet.dk
Responsible (RNAME)	hostmaster@statens-it.dk
Refresh	10800s
Retry	1080s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-13 17:53:41

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-12-23
Expires	2027-12-31 (439d)

🔗 Same registrant#

109 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
arsenalmuseum.dk	Punktum dk A/S (direct)
bernstorffslotshave.dk	Punktum dk A/S (direct)
bernstorffsparken.dk	Punktum dk A/S (direct)
bevaringsafdelingen.dk	Punktum dk A/S (direct)
bornenesmuseum.dk	Punktum dk A/S (direct)
bredevaerk.dk	Punktum dk A/S (direct)
c4bryghus.dk	Punktum dk A/S (direct)
castle-island.dk	Punktum dk A/S (direct)
castleisland.dk	Punktum dk A/S (direct)
castlesandculture.dk	Punktum dk A/S (direct)
cultureandcastles.dk	Punktum dk A/S (direct)
cultureandpalaces.dk	Punktum dk A/S (direct)
danisharsenalmuseum.dk	Punktum dk A/S (direct)
danishwarmuseum.dk	Punktum dk A/S (direct)
danmarkskirker.dk	Punktum dk A/S (direct)
danskeringborge.dk	Punktum dk A/S (direct)
danskforsvarsmuseum.dk	Punktum dk A/S (direct)
denfjernekrig.dk	Punktum dk A/S (direct)
dfvm.dk	Punktum dk A/S (direct)
flyvestation.dk	Punktum dk A/S (direct)
flyvestationen.dk	Punktum dk A/S (direct)
forsvarsmuseet.dk	Punktum dk A/S (direct)
fremtidensmuseum.dk	Punktum dk A/S (direct)
fremtidsmuseet.dk	Punktum dk A/S (direct)
fremtidsmuseum.dk	Punktum dk A/S (direct)
frihedskaemper.dk	Punktum dk A/S (direct)
frihedskæmper.dk	Punktum dk A/S (direct)
frihedsmuseet.dk	Punktum dk A/S (direct)
frilandsmuseet.dk	Punktum dk A/S (direct)
froeslevlejrensmuseum.dk	Punktum dk A/S (direct)
frøslevlejrensmuseum.dk	Punktum dk A/S (direct)
gate2jelling.dk	Punktum dk A/S (direct)
graasten-slot.dk	Punktum dk A/S (direct)
graasten-slotshave.dk	Punktum dk A/S (direct)
graastenslotshave.dk	Punktum dk A/S (direct)
graastenslotspark.dk	Punktum dk A/S (direct)
guderoggrave.dk	Punktum dk A/S (direct)
haandvaerkifolkeskolen.dk	Punktum dk A/S (direct)
hangar46.dk	Punktum dk A/S (direct)
haraldblåtandsvikingeborge.dk	Punktum dk A/S (direct)
historieromdanmark.dk	Punktum dk A/S (direct)
hvordetfra.dk	Punktum dk A/S (direct)
hvorerdetfra.dk	Punktum dk A/S (direct)
intercult.dk	Punktum dk A/S (direct)
julpaakronborg.dk	Punktum dk A/S (direct)
klunkehjem.dk	Punktum dk A/S (direct)
klunkehjemmet.dk	Punktum dk A/S (direct)
komgaardmuseum.dk	Punktum dk A/S (direct)
komgard.dk	Punktum dk A/S (direct)
komgardmuseum.dk	Punktum dk A/S (direct)
kommandoergaard.dk	Punktum dk A/S (direct)
kongerneslapidarium.dk	Punktum dk A/S (direct)
konservering-restaurering.dk	Punktum dk A/S (direct)
krigsmuseet.dk	Punktum dk A/S (direct)
krigsmuseum.dk	Punktum dk A/S (direct)
kronborg.dk	Punktum dk A/S (direct)
kronborgslot.dk	Punktum dk A/S (direct)
lapidariet.dk	Punktum dk A/S (direct)
liselundmon.dk	Punktum dk A/S (direct)
liselundmøn.dk	Punktum dk A/S (direct)
madebyvikinks.dk	Punktum dk A/S (direct)
museum-shop.dk	Punktum dk A/S (direct)
museumkommandoergaarden.dk	Punktum dk A/S (direct)
museumsbutikken.dk	Punktum dk A/S (direct)
museumsklubben.dk	Punktum dk A/S (direct)
musikmuseet.dk	Punktum dk A/S (direct)
nationalmuseet.dk	Punktum dk A/S (direct)
nationalmuseum.dk	Punktum dk A/S (direct)
natmus.dk	Punktum dk A/S (direct)
nytfrihedsmuseum.dk	Punktum dk A/S (direct)
openairmuseum.dk	Punktum dk A/S (direct)
oplevslotsholmen.dk	Punktum dk A/S (direct)
organs.dk	Punktum dk A/S (direct)
orlogsmuseet.dk	Punktum dk A/S (direct)
restaurant-skipperhuset.dk	Punktum dk A/S (direct)
sfhm.dk	Punktum dk A/S (direct)
sila.dk	Punktum dk A/S (direct)
skandinavienringborge.dk	Punktum dk A/S (direct)
skandinaviskevikingeborge.dk	Punktum dk A/S (direct)
skibepaaholmen.dk	Punktum dk A/S (direct)
slotshaver.dk	Punktum dk A/S (direct)
slotshaverb2b.dk	Punktum dk A/S (direct)
slotsholmsalliancen.dk	Punktum dk A/S (direct)
slotteoghaver.dk	Punktum dk A/S (direct)
slotteogkulturejendomme.dk	Punktum dk A/S (direct)
soldatenibaghaven.dk	Punktum dk A/S (direct)
sorgenfrislot.dk	Punktum dk A/S (direct)
sorgenfrislotshave.dk	Punktum dk A/S (direct)
stateantiquary.dk	Punktum dk A/S (direct)
statenskulturejendomme.dk	Punktum dk A/S (direct)
stenalder.dk	Punktum dk A/S (direct)
thm-online.dk	Punktum dk A/S (direct)
thm.dk	Punktum dk A/S (direct)
toejhusmuseet.dk	Punktum dk A/S (direct)
tojhusmuseet.dk	Punktum dk A/S (direct)
trelleborg-museet.dk	Punktum dk A/S (direct)
trelleborgvikingfortress.dk	Punktum dk A/S (direct)
viking-ageringfortresses.dk	Punktum dk A/S (direct)
vikingeborg.dk	Punktum dk A/S (direct)
vikingeborgedanmark.dk	Punktum dk A/S (direct)

Showing 100 of 109.

📋 WHOIS#

⏱️ Lookup Timing#

98ms

85ms

74ms

AAAA

87ms

TXT

717ms

CAA

93ms

HTTPS

86ms

TLSA

179ms

SOA

72ms

MTA-STS

153ms

DNSSEC

103ms

SRV

227ms

Total

5189ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 20:46:40	17380ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-16 19:53:18	5304ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-15 19:12:20	18737ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 18:44:19	2146ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 17:31:33	18084ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 16:05:10	5774ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 14:27:49	1066ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 11:03:16	10044ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 07:23:28	2456ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 07:13:49	2677ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 07:07:08	4630ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 22:56:39	10451ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 22:53:52	3727ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 22:50:54 shown	5189ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 22:49:18	3173ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 22:48:04	5208ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 22:45:37	9491ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 22:34:01	17968ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 22:23:14	17277ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 21:54:23	17915ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 21:42:58	9333ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 21:27:19	1314ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 20:59:38	3587ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 22:26:07	1189ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 21:56:11	10271ms	2 NS 1 A 1 MX	🔒 Secure