buhlmann.dk

Records from scan: 2026-09-29 17:21:57 · 1365ms total · last checked 2026-10-16 04:45 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

buhlmann.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 18 January 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.76.21.34 is hosted by Liquid Web B.V. (AS202521) in United States. Mail is handled by buhlmann-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 49ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.76.21.34	3600s	cloudhost-11803623.nl-west-1.nxcli.net	AS202521	Liquid Web B.V.	87.76.21.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	buhlmann-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::a 2a01:111:f403:ca04::e 2a01:111:f403:ca09::20 52.101.68.27 52.101.73.126 52.101.91.156 52.101.91.162	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-maspr04cu00104.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.154.152
🔶 Autoconfig	87.76.21.34

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 56ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 128ms

TXT Record
google-site-verification=90SlXQNWVTq8KV3g0QH_vCrIyB6Gayj-yU9MDMCNWFA
linkedin-site-verification=4b1b5a8f-8174-4e1a-9cde-c38487cfc221
v=spf1 include:spf.curanet.dk include:mail.zendesk.com include:spf.protection.outlook.com ip4:94.231.106.116 include:_spf.resennet.dk include:mail.techosting.dk include:spf.tigermedia.eu include:spf.eu.signature365.net ip4:3.78.148.39 -all

✉️ SPF#

Policy	Record (buhlmann.dk)
-all (hard fail)	v=spf1 include:spf.curanet.dk include:mail.zendesk.com include:spf.protection.outlook.com ip4:94.231.106.116 include:_spf.resennet.dk include:mail.techosting.dk include:spf.tigermedia.eu include:spf.eu.signature365.net ip4:3.78.148.39 -all

📨 DMARC#

Policy	Record (_dmarc.buhlmann.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 00:01:29

www	87.76.21.34 (AS202521) (address records, no CNAME)
www vs bare domain	Same network buhlmann.dk: 87.76.21.34 (AS202521) www.buhlmann.dk: 87.76.21.34 (AS202521)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 10/10 · policy: -all

warn 10 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

115ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092302
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 2026-10-11 04:52:39

Field	Value
Registrar	CURANET A/S
Registered	2013-01-18
Expires	2028-01-31 (471d)

📋 WHOIS#

⏱️ Lookup Timing#

49ms

37ms

42ms

AAAA

42ms

TXT

128ms

CAA

52ms

HTTPS

29ms

TLSA

728ms

SOA

0ms

MTA-STS

51ms

DNSSEC

115ms

SRV

56ms

Total

1365ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 17:21:57 shown	1365ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:30:51	1101ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-24 03:21:06	1262ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 12:16:34	2185ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 23:09:01	1442ms	2 NS 1 A 3 MX	🔒 Secure
2026-08-27 20:51:24	494ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-24 13:42:16	1293ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-26 17:58:02	2212ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-19 23:47:58	1192ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-16 17:44:40	1477ms	2 NS 1 A 3 MX	⚠️ Bogus
2026-06-16 17:41:09	1119ms	2 NS 1 A 3 MX	🔒 Secure