cphbusiness.dk

📜 Historical scan 2026-08-08 11:52:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cphbusiness.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 15 December 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.254.168.52 is hosted by Aarhus Business College (AS51073) in Denmark. Mail is handled by cphbusiness-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#

3 records 82ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.efif.dk	195.254.168.23	ns.efif.dk	AS51073 Aarhus Business College
ns2.efif.dk	195.254.168.12	ns2.efif.dk	AS51073 Aarhus Business College
ns3.efif.dk	20.23.170.35	—	AS8075 Microsoft Corporation

🌍 A Records#

1 records 80ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.254.168.52	300s	cphbusiness.dk ek.dk keanet.dk kompetence.kea.dk redirect.efif.dk	AS51073	Aarhus Business College	195.254.168.0/23	🇩🇰 Denmark	Højbjerg

📧 MX Records#

1 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	cphbusiness-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 52.101.68.15 52.101.68.27 52.101.73.1 52.101.73.16	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as2pr05cu00100.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 202ms

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

📝 TXT Records#

15 records 388ms

TXT Record
_i1vm0dtxggtq6c0bvya6dh2j39uq8p2
apple-domain-verification=hI7lxzO6gtbPIsGb
C537905A659E5F82135B05A4C1FFF2AB8C4E2291CA84957379574571076AE123
Copenhagen Business Academy
customgpt-site-verification=aada47dd0f8113e2e8aa4b4f6012a22e9b368760
dmjsnbps1nqj1tvhm323pdp8z2vy6bvs
google-site-verification= rXOxyZounnZasA8Z7oaD3c14JdjS9aKSWvsR1EbUSIQ
google-site-verification=CuVY_5ddfo71I3HeoTWMYCexHMNNT4mfGOxJlLxDLCY
google-site-verification=dXHdyTaJn94TSQbVMuVjSTCbxQ9Q-SMILouiwvG4WPg
j8klwbw84qfztqtcxl8br9q7h58kwdtz
k56c8qysmkqpdxq49shl86y80wj6470s
MS=ms29823118
Prl2sdegC5RuIY8opzveNkifMXFjm6E4omrzhvNHuJS3Xqk4NZUsg5gSCCuBTFUPIoCTSmsMjQ3jU/GoByX+uA==
q1jh2sv5yfxmjgc9xqn6qwypn25s8h7q
v=spf1 include:spf.protection.outlook.com include:myopenlms.net include:_spf.createsend.com include:mail.zendesk.com include:spf.flowmailer.net include:spf.topdesk.net ip4:46.183.247.6 ip4:46.183.247.1 ip4:52.178.44.121 -all

✉️ SPF#

Policy	Record (cphbusiness.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:myopenlms.net include:_spf.createsend.com include:mail.zendesk.com include:spf.flowmailer.net include:spf.topdesk.net ip4:46.183.247.6 ip4:46.183.247.1 ip4:52.178.44.121 -all

📨 DMARC#

Policy	Record (_dmarc.cphbusiness.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:64e88d13a948b@dmarc.centerasecurity.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 2026-10-16 08:33:25

www CNAME	redirect.efif.dk (all on efif.dk) → 195.254.168.52 (AS51073)
www vs bare domain	Same network cphbusiness.dk: 195.254.168.52 (AS51073) www.cphbusiness.dk: 195.254.168.52 (AS51073)
Wildcard	No
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u17063761.wl012.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u17063761.wl012.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector2	selector2-cphbusiness-dk._domainkey.efif.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: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

164ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2013122181
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-12 03:08:42

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2008-12-15
Expires	2026-12-31 (75d)

🔗 Same registrant#

6 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
fortunkollegiet.dk	Punktum dk A/S (direct)
hsnord.dk	Punktum dk A/S (direct)
knord.dk	Punktum dk A/S (direct)
u-shop01.dk	ONE.COM A/S
u-shop02.dk	ONE.COM A/S
unord.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

82ms

80ms

70ms

AAAA

85ms

TXT

388ms

CAA

77ms

HTTPS

73ms

TLSA

1620ms

SOA

0ms

MTA-STS

148ms

DNSSEC

164ms

SRV

202ms

Total

2765ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 08:33:25	1530ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-15 05:17:03	2503ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-12 02:45:07	1464ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 21:55:51	1581ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 21:49:57	1520ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 18:01:56	911ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 17:47:55	1060ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 17:14:16	848ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-25 07:10:07	1295ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-24 07:00:27	2090ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-20 15:54:46	1390ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-18 09:45:00	2282ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-15 13:22:23	2316ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-12 00:54:16	1706ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-03 22:07:32	1311ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-31 13:53:54	2981ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 01:44:54	1170ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 13:08:19	954ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-20 10:32:10	3272ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-18 05:44:35	5869ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-14 17:32:38	5669ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-13 09:12:43	9192ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-11 04:53:44	7429ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-08 11:52:09 shown	2765ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-01 19:33:45	5438ms	3 NS 1 A 1 MX	🔒 Secure