natmus.dk

📜 Historical scan 2026-10-14 15:36:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

natmus.dk is a .dk domain served by 2 nameservers (ns6.sitnet.dk, ns7.sitnet.dk). It was registered on 1 July 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.72.21.206 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by natmus-dk.mail.protection.outlook.com. 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 69ms

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 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.72.21.206	300s	www.natmus.dk	AS3342	Cibicom A/S	178.72.16.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 74ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	natmus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::c 2a01:111:f403:ca38::8 2a01:111:f403:ca3c::6 52.101.103.143 52.101.68.25 52.101.73.145 52.101.91.156	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-maspr04cu00104.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#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 278ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

7 records 368ms

TXT Record
+R/D6wFsfho1BFtr+vlBiS1dQxUQAxeaGSlkwOamwicZfhULnKrJaMoyTgabN6/5DUOMz6gRhn+2EUa3FIT9dQ==
apple-domain-verification=eB7ifSIwqqGMcTq1
atlassian-domain-verification=fH95ZzaUCMQvZTeVGd7taMGYdhlYATGlzy8n7lGHsfGg1ouI6B4s0mCbvRokFmMD
facebook-domain-verification=2ef83dkw061yk0migeudgi95pfq4oj
google-site-verification=ElCXAOQ64JtGQrdh8TMl1JpJ_EXckfPFl0Yv-U6HKGs
MS=ms64809324
v=spf1 include:_spf.sitnet.dk include:spf.protection.outlook.com ip4:50.31.32.0/19 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:81.27.209.53 ip4:86.58.175.4 ip4:194.182.159.206 ip4:5.56.144.185 ip4:13.93.34.69 ip4:35.190.247.0/24 ip4:35.191.0.0/16 ip4:86.58.175.12 ip4:89.221.166.0/24 ip4:94.137.130.121 include:spf1.natmus.dk ~all

✉️ SPF#

Policy	Record (natmus.dk)
~all (soft fail)	v=spf1 include:_spf.sitnet.dk include:spf.protection.outlook.com ip4:50.31.32.0/19 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:81.27.209.53 ip4:86.58.175.4 ip4:194.182.159.206 ip4:5.56.144.185 ip4:13.93.34.69 ip4:35.190.247.0/24 ip4:35.191.0.0/16 ip4:86.58.175.12 ip4:89.221.166.0/24 ip4:94.137.130.121 include:spf1.natmus.dk ~all

📨 DMARC#

Policy	Record (_dmarc.natmus.dk)
p=reject	v=DMARC1; p=reject; sp=reject; 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 2026-10-22 01:11:55

www CNAME	natmus.dk (all on natmus.dk) → 178.72.21.206 (AS3342)
www vs bare domain	Same network natmus.dk: 178.72.21.206 (AS3342) www.natmus.dk: 178.72.21.206 (AS3342)
Wildcard	No
Denial of existence	NSEC3 · 10 iterations · 4-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

7 found

Selector	CNAME	Key
default	—	Revoked (empty key)
dkim	—	Revoked (empty key)
k1	—	Revoked (empty key)
mail	—	Revoked (empty key)
s1	s1.domainkey.u20349088.wl089.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u20349088.wl089.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-natmus-dk._domainkey.natmus.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

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: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

225ms

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

🏷️ SOA#

82ms

Field	Value
Serial	76551
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 2026-10-20 21:30:16

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1996-07-01
Expires	2027-09-30 (342d)

🔗 Same registrant#

112 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)
kongernesjelling.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)
kronborgb2b.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)
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)
renæssance.dk	Punktum dk A/S (direct)
restaurant-skipperhuset.dk	Punktum dk A/S (direct)
restaurering-konservering.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)

Showing 100 of 112.

📋 WHOIS#

⏱️ Lookup Timing#

69ms

76ms

74ms

AAAA

208ms

TXT

368ms

CAA

82ms

HTTPS

219ms

TLSA

1014ms

SOA

82ms

MTA-STS

98ms

DNSSEC

225ms

SRV

278ms

Total

18022ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 01:11:54	8996ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-20 21:15:27	1410ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-19 17:37:40	3779ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-18 17:32:42	18741ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-17 17:05:58	1615ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-16 16:54:29	17852ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-15 15:42:34	5458ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 15:36:45 shown	18022ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 12:59:39	1482ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 06:35:00	5547ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 04:13:29	17639ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 03:31:44	1912ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 02:53:41	1971ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 02:50:36	17921ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 02:41:08	19374ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-06 02:09:51	19216ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 02:05:28	18052ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 01:56:11	5553ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 01:54:52	11647ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 01:49:42	17394ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 01:44:42	1685ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 01:40:37	5369ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 18:56:46	17362ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 18:48:05	17416ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 18:32:47	14431ms	2 NS 1 A 1 MX	🔒 Secure