birkholm.dk

📜 Historical scan 2026-09-24 08:45:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

birkholm.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 28 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.138 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by birkholm-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.138	3600s	linux127.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
32767	3600s	birkholm-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::a 2a01:111:f403:ca09::20 2a01:111:f403:ca21::a 52.101.181.156 52.101.73.120 52.101.73.123 52.101.73.155	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am6pr02cu00203.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 → 40.104.116.24
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 56ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 150ms

TXT Record
google-site-verification=-sxRMw1aE6H2isViOcDmf_6LgLjtxbWbR4YqY15MT5o
MS=ms35246111
v=spf1 include:spf.protection.outlook.com include:spf.netsite.dk include:_spf-hosting.eg.dk -all

✉️ SPF#

Policy	Record (birkholm.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.netsite.dk include:_spf-hosting.eg.dk -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-08 06:00:52

www	94.231.103.138 (AS48854) (address records, no CNAME)
www vs bare domain	Same network birkholm.dk: 94.231.103.138 (AS48854) www.birkholm.dk: 94.231.103.138 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

68ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2025042300
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-09 02:57:47

Field	Value
Registrar	Simply.com A/S
Registered	1997-02-28
Expires	2033-03-31 (2350d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

40ms

37ms

AAAA

44ms

TXT

150ms

CAA

43ms

HTTPS

31ms

TLSA

852ms

SOA

0ms

MTA-STS

47ms

DNSSEC

68ms

SRV

56ms

Total

1418ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 03:28:55	822ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-29 19:50:32	777ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-24 08:45:15 shown	1418ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-26 12:48:07	1057ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-24 14:47:45	1932ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 14:47:30	568ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 14:40:58	678ms	4 NS 1 A 1 MX	🔒 Secure