sierbach.dk

📜 Historical scan 2026-06-17 22:57:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sierbach.dk is a .dk domain served by 3 nameservers (ns1.ecomdata.de, ns2.ecomdata.de, ns3.ecomdata.de). It was registered on 19 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.45.146.251 is hosted by ecomDATA GmbH (AS211582) in Germany. Mail is handled by mail.sierbach.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 51ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.ecomdata.de	2a10:b040:1::10 80.243.227.47	ns1.ecomdata.de ns1.ecomdata.de	AS211582 ecomDATA GmbH AS211582 ecomDATA GmbH
ns2.ecomdata.de	185.214.189.1 2a10:b040:2::10	ns2.ecomdata.de ns2.ecomdata.de	AS211582 ecomDATA GmbH AS211582 ecomDATA GmbH
ns3.ecomdata.de	2a05:d014:c05:4500:83e6:7723:5290:365b 35.158.5.252	ns3.ecomdata.de ns3.ecomdata.de	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records#

1 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.45.146.251	—	mpweb0005.ecomdata.de	AS211582	ecomDATA GmbH	5.45.144.0/22	🇩🇪 Germany	Nuremberg

📧 MX Records#

1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.sierbach.dk	2a10:b040:3::2:151 5.45.146.251	mpweb0005.ecomdata.de mpweb0005.ecomdata.de	AS211582 ecomDATA GmbH AS211582 ecomDATA GmbH

🔷 AAAA Records (IPv6)#

1 records 59ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a10:b040:3::2:151	—	mpweb0005.ecomdata.de	AS211582	ecomDATA GmbH	2a10:b040:2:0:0:0:0:0/47	🇩🇪 Germany	Nuremberg

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 246ms

TXT Record
v=spf1 a mx ip4:5.45.146.251 ip6:2a10:b040:3:0:0:0:2:151 ~all

✉️ SPF#

Policy	Record (sierbach.dk)
~all (soft fail)	v=spf1 a mx ip4:5.45.146.251 ip6:2a10:b040:3:0:0:0:2:151 ~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 2026-10-16 01:48:07

www	5.45.146.251 2a10:b040:3::2:151 (AS211582) (address records, no CNAME)
www vs bare domain	Same network sierbach.dk: 5.45.146.251 2a10:b040:3::2:151 (AS211582) www.sierbach.dk: 5.45.146.251 2a10:b040:3::2:151 (AS211582)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

218ms

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

🏷️ SOA#

60ms

Field	Value
Serial	2026020500
Primary NS (MNAME)	ns1.ecomdata.de
Responsible (RNAME)	hostmaster@sierbach.dk
Refresh	3600s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-13 15:11:41

Field	Value
Registrar	InterNetX GmbH
Registered	2025-02-19
Expires	2027-02-18 (123d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

51ms

61ms

60ms

AAAA

59ms

TXT

246ms

CAA

47ms

HTTPS

83ms

TLSA

2083ms

SOA

60ms

MTA-STS

120ms

DNSSEC

218ms

SRV

2070ms

Total

7000ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 04:11:47	9988ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-27 09:32:49	2370ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-28 20:49:23	835ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-20 19:15:22	1996ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 22:57:59 shown	7000ms	3 NS 1 A 1 MX	🔓 Insecure