centralbusiness.dk

Records from scan: 2026-10-01 06:46:05 · 1130ms total · last checked 2026-10-16 09:10 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

centralbusiness.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 6 February 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.109 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by centralbusiness-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 64ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.109	3600s	prolinux7.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	centralbusiness-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::b 2a01:111:f403:ca09::22 2a01:111:f403:ca09::a 52.101.103.137 52.101.73.120 52.101.73.145 52.101.73.155	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 62ms

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

📝 TXT Records#

6 records 144ms

TXT Record
apple-domain-verification=zwdLRYDw6GR7HKaX
google-site-verification=cxpvfORzzxHeiTaXJyyM7-gSzI8CVbn3c2Tj5LNm1Mw
google-site-verification=eKWKJQaJEa4qgwb0Sqi9TZjGjg26YQg1ho1Os6Wd3-4
google-site-verification=Nue505887s3rUMnZwaf3X1MiFaeArLgN9NSZOx4WhCo
MS=ms25682146
v=spf1 ip4:91.133.35.4 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (centralbusiness.dk)
-all (hard fail)	v=spf1 ip4:91.133.35.4 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.centralbusiness.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:mail@centralbusiness.dk; fo=1

📬 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 2026-10-11 19:15:47

www	185.21.42.109 (AS48854) (address records, no CNAME)
www vs bare domain	Same network centralbusiness.dk: 185.21.42.109 (AS48854) www.centralbusiness.dk: 185.21.42.109 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-centralbusiness-dk._domainkey.fifonetwork.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-centralbusiness-dk._domainkey.fifonetwork.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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.centralbusiness.dk	VTvNum2c2v4AdkKxEtcQbJZ6eZd5i99RcW6ESGVqsR8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

63ms

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

🏷️ SOA#

36ms

Field	Value
Serial	2026092802
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-13 08:27:53

Field	Value
Registrar	CURANET A/S
Registered	2019-02-06
Expires	2027-02-28 (134d)

🔗 Same registrant#

7 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
centralbusinesshub.dk	CURANET A/S
centralinnovation.dk	CURANET A/S
gdpr-check.dk	CURANET A/S
gdprtjek.dk	CURANET A/S
icatcher.dk	CURANET A/S
licensemanagement.dk	CURANET A/S
licensstyring.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

64ms

50ms

55ms

AAAA

40ms

TXT

144ms

CAA

46ms

HTTPS

61ms

TLSA

586ms

SOA

36ms

MTA-STS

64ms

DNSSEC

63ms

SRV

62ms

Total

1130ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 06:46:05 shown	1130ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 07:18:56	1161ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 06:46:06	914ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 17:09:52	988ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 10:30:43	9345ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 20:05:18	1781ms	2 NS 1 A 1 MX	🔒 Secure