bu10k.dk

📜 Historical scan 2026-08-27 12:25:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bu10k.dk is a .dk domain served by 2 nameservers (dns-a.duelhost.dk, dns-b.duelhost.dk). It was registered on 4 October 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 138.201.61.68 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.bu10k.dk. 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#

2 records 70ms

Nameserver	IP addresses	PTR	ASN / ISP
dns-a.duelhost.dk	138.201.61.68	cde3.duelhost.dk	AS24940 Hetzner Online GmbH
dns-b.duelhost.dk	195.201.247.10	dns-b.duelhost.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 2053ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
138.201.61.68	98s	cde3.duelhost.dk	AS24940	Hetzner Online GmbH	138.201.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 92ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	100s	mail.bu10k.dk	138.201.61.68	cde3.duelhost.dk	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 300ms

TXT Record
v=spf1 a mx include:relay.mailchannels.net -all

✉️ SPF#

Policy	Record (bu10k.dk)
-all (hard fail)	v=spf1 a mx include:relay.mailchannels.net -all

📨 DMARC#

Policy	Record (_dmarc.bu10k.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#

latest probe, not this scan · checked 2026-10-10 18:48:57

www	193.46.69.54 (AS62121) (address records, no CNAME)
www vs bare domain	Same network bu10k.dk: 193.46.69.54 (AS62121) www.bu10k.dk: 193.46.69.54 (AS62121)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

126ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081303
Primary NS (MNAME)	dns-a.duelhost.dk
Responsible (RNAME)	hostmaster@bu10k.dk
Refresh	3600s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-09 08:56:37

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-10-04
Expires	2027-10-31 (376d)

📋 WHOIS#

⏱️ Lookup Timing#

70ms

2053ms

92ms

AAAA

80ms

TXT

300ms

CAA

90ms

HTTPS

92ms

TLSA

96ms

SOA

0ms

MTA-STS

105ms

DNSSEC

126ms

SRV

129ms

Total

2495ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 10:20:22	549ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-16 08:58:26	2049ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 12:25:31 shown	2495ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-14 21:44:12	8640ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-02 00:00:54	701ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 17:37:18	3355ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 17:34:32	1613ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 17:30:35	690ms	2 NS 1 A 1 MX	🔓 Insecure