3cholding.dk

📜 Historical scan 2026-06-20 06:33:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3cholding.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 26 May 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 40.68.44.58 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by 3cholding-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#

4 records 87ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records#

1 records 89ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
40.68.44.58	3600s	—	AS8075	Microsoft Corporation	40.68.0.0/14	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 78ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	3cholding-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca09::20 2a01:111:f403:ca09::3 2a01:111:f403:ca09::5 52.101.68.21 52.101.68.27 52.101.68.36 52.101.73.28	mail-db8pr02cu00106.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db5pr02cu00104.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#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 538ms

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

📝 TXT Records#

4 records 325ms

TXT Record
_7la4rdjqj2ru9wpmhk5vgvnyyzz6edy
KbbMrWT3s2EhIXv5O4g/LQO6hZr+On7EWh6RcV2m309nN/W76SXr8k+GWznpgaMWoffdlWGGTdEonz4Of1n3Tw==
MS=ms11049222
v=spf1 ip4:194.182.232.130 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (3cholding.dk)
-all (hard fail)	v=spf1 ip4:194.182.232.130 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.3cholding.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email

📬 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 2026-10-12 03:12:54

www CNAME	3c-groups-live.3c-live.p.azurewebsites.net (all on azurewebsites.net) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.3cholding.dk
www vs bare domain	www does not resolve 3cholding.dk: 40.68.44.58 (AS8075) www.3cholding.dk: no address (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-3cholding-dk._domainkey.3cretail.onmicrosoft.com	RSA · ~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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

202ms

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

🏷️ SOA#

84ms

Field	Value
Serial	2026022520
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-15 10:47:24

Field	Value
Registrar	Eurodns S.A
Registered	2007-05-26
Expires	2027-05-31 (226d)

🔗 Same registrant#

9 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
3cbolig.dk	Eurodns S.A
3cgroups.dk	Eurodns S.A
8x8.dk	Eurodns S.A
d-e-r.dk	Eurodns S.A
derprivatfinans.dk	Eurodns S.A
kliklaan.dk	Eurodns S.A
leasy.dk	Eurodns S.A
lejehvidevarer.dk	Eurodns S.A
viigalaan.dk	Eurodns S.A

📋 WHOIS#

⏱️ Lookup Timing#

87ms

89ms

78ms

AAAA

84ms

TXT

325ms

CAA

72ms

HTTPS

91ms

TLSA

186ms

SOA

84ms

MTA-STS

63ms

DNSSEC

202ms

SRV

538ms

Total

1418ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 03:12:54	1872ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-11 01:44:40	2686ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-09 19:26:44	2996ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-06 07:13:42	1821ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-04 05:51:19	855ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-30 18:41:59	1104ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-25 17:54:38	1020ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-23 11:41:13	1369ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-06 08:50:05	2818ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-16 23:51:40	4173ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-15 14:30:53	3667ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-05 04:43:11	10595ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-29 20:59:55	10878ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-28 11:16:45	1913ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-12 09:29:18	9140ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-29 04:17:39	967ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 16:53:03	1263ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-21 01:27:16	1157ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-20 06:33:42 shown	1418ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:12:41	2800ms	4 NS 1 A 1 MX	🔒 Secure