felix-buehler.dk

📜 Historical scan 2026-06-17 10:15:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

felix-buehler.dk is a .dk domain served by 3 nameservers (ns.udag.de, ns.udag.net, ns.udag.org). It was registered on 29 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.31.143.90 is hosted by united-domains GmbH (AS202108) in Germany. Mail is handled by mx00.udag.de, mx01.udag.de. The zone is not DNSSEC-signed, 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#

3 records 69ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.udag.de	2001:8d8:fe:53:217:160:80:253 217.160.80.253	ns.udag.de ns.udag.de	AS8560 IONOS SE AS8560 IONOS SE
ns.udag.net	185.132.33.253 2607:f1c0:fe:53:185:132:33:253	ns.udag.net ns.udag.net	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited
ns.udag.org	185.132.34.253 2607:f1c0:fe:53:185:132:34:253	ns.udag.org ns.udag.org	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited

🌍 A Records#

1 records 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.31.143.90	—	—	AS202108	united-domains GmbH	89.31.142.0/23	🇩🇪 Germany	—

📧 MX Records#

2 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx00.udag.de	62.146.106.39	mx00.udag.de	AS15598 NorthC Deutschland GmbH
20	—	mx01.udag.de	62.146.106.40	mx01.udag.de	AS15598 NorthC Deutschland GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 197ms

TXT Record
v=spf1 include:_smtp.udag.de ~all

✉️ SPF#

Policy	Record (felix-buehler.dk)
~all (soft fail)	v=spf1 include:_smtp.udag.de ~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 10:07:11

www	89.31.143.90 (AS202108) (address records, no CNAME)
www vs bare domain	Same network felix-buehler.dk: 89.31.143.90 (AS202108) www.felix-buehler.dk: 89.31.143.90 (AS202108)
Wildcard	Yes: any name under the zone resolves

🔎 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#

79ms

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

🏷️ SOA#

56ms

Field	Value
Serial	2026012850
Primary NS (MNAME)	ns.udag.de
Responsible (RNAME)	hostmaster@united-domains.de
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-11 13:57:55

Field	Value
Registrar	united-domains GmbH
Registered	2026-01-29
Expires	2027-01-28 (94d)

🔗 Same registrant#

1 domain

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
sugardog.dk	united-domains GmbH

📋 WHOIS#

⏱️ Lookup Timing#

69ms

76ms

71ms

AAAA

61ms

TXT

197ms

CAA

70ms

HTTPS

61ms

TLSA

76ms

SOA

56ms

MTA-STS

57ms

DNSSEC

79ms

SRV

0ms

Total

632ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 20:48:26	2534ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-24 22:37:40	809ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-17 10:15:42 shown	632ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-17 10:07:24	2858ms	3 NS 1 A 2 MX	🔓 Insecure