holboell.dk

📜 Historical scan 2026-06-20 14:16:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holboell.dk is a .dk domain served by 3 nameservers (ns1.hostbase.dk, ns2.hostbase.dk, ns3.hostbase.dk). It was registered on 20 January 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.106.67 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by holboell-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 750ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.hostbase.dk	185.103.123.13	—	AS204171 TD-K A/S
ns2.hostbase.dk	185.103.123.14	—	AS204171 TD-K A/S
ns3.hostbase.dk	185.150.199.99	—	AS202914 Adeo Datacenter ApS

🌍 A Records#

1 records 1042ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.67	3599s	linux207.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 751ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holboell-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::b 2a01:111:f403:ca09:: 2a01:111:f403:ca09::20 52.101.68.36 52.101.73.16 52.101.73.24 52.101.73.8	mail-dbapr03cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 52.98.253.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1492ms

TXT Record
v=spf1 ip4:20.105.189.48 ip4:185.103.121.9 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:hostbase.dk -all

✉️ SPF#

Policy	Record (holboell.dk)
-all (hard fail)	v=spf1 ip4:20.105.189.48 ip4:185.103.121.9 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:hostbase.dk -all

📨 DMARC#

Policy	Record (_dmarc.holboell.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@td-k.dk; ruf=mailto:dmarc@td-k.dk; adkim=s; aspf=s; fo=0:1:d:s;

📬 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 2026-10-07 17:05:35

www	94.231.106.67 (AS48854) (address records, no CNAME)
www vs bare domain	Same network holboell.dk: 94.231.106.67 (AS48854) www.holboell.dk: 94.231.106.67 (AS48854)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-holboell-dk._domainkey.holboell.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-holboell-dk._domainkey.holboell.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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

1287ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

958ms

Field	Value
Serial	61
Primary NS (MNAME)	ns1.hostbase.dk
Responsible (RNAME)	hostmaster@hostbase.local
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 19:13:25

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-01-20
Expires	2027-03-31 (163d)

🔗 Same registrant#

8 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
c-holboell-aps.dk	Punktum dk A/S (direct)
c-holboell-as.dk	Punktum dk A/S (direct)
c-holboell-sønner.dk	Punktum dk A/S (direct)
c-holboell.dk	Punktum dk A/S (direct)
c-holbøll-soenner.dk	Punktum dk A/S (direct)
holbøll-aps.dk	Punktum dk A/S (direct)
holbøll.dk	Punktum dk A/S (direct)
segmiljoe.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

750ms

1042ms

751ms

AAAA

1026ms

TXT

1492ms

CAA

745ms

HTTPS

1063ms

TLSA

839ms

SOA

958ms

MTA-STS

843ms

DNSSEC

1287ms

SRV

1975ms

Total

7795ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 17:05:35	1028ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-24 00:10:41	10936ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-31 11:40:16	1025ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-24 07:19:08	836ms	3 NS 1 A 1 MX	❓ Unknown
2026-06-20 14:16:25 shown	7795ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-18 16:27:49	1901ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:15:01	270ms	0 NS 0 A 0 MX	❓ Unknown