btk.dk

📜 Historical scan 2026-06-23 11:14:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

btk.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 6 April 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.107.246.52 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by btk-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#

2 records 179ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 153ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.107.246.52	3600s	—	AS8075	Microsoft Corporation	13.107.240.0/21	🇺🇸 United States	—

📧 MX Records#

1 records 151ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	btk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 2a01:111:f403:ca09::4 2a01:111:f403:ca09::6 52.101.68.0 52.101.68.10 52.101.73.16 52.101.73.22	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 52.98.243.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 461ms

TXT Record
MS=ms57423217
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (btk.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 2026-10-13 12:59:46

www CNAME	gomember2-fkg0ggbxftbtgge7.z03.azurefd.net (all on azurefd.net) → 150.171.109.193 2603:1061:14:c0::1 (AS8075)
www vs bare domain	Same network btk.dk: 13.107.246.52 (AS8075) www.btk.dk: 150.171.109.193 2603:1061:14:c0::1 (AS8075)
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#

1 found

Selector	CNAME	Key
k1	dkim.mcsv.net	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

492ms

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

🏷️ SOA#

538ms

Field	Value
Serial	2026012302
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-01 23:43:38

Field	Value
Registrar	DANDOMAIN A/S
Registered	1999-04-06
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

179ms

153ms

151ms

AAAA

129ms

TXT

461ms

CAA

244ms

HTTPS

172ms

TLSA

231ms

SOA

538ms

MTA-STS

239ms

DNSSEC

492ms

SRV

452ms

Total

1255ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 22:59:49	923ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 21:24:51	1093ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 13:11:58	895ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 15:00:58	1586ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 16:07:24	1566ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 11:14:18 shown	1255ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 00:20:06	1199ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 17:12:54	1000ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 17:50:37	1890ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 17:44:50	3422ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 17:30:21	661ms	2 NS 1 A 1 MX	🔒 Secure