gerlock.dk

📜 Historical scan 2026-06-20 04:09:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gerlock.dk is a .dk domain served by 3 nameservers (ns.udag.de, ns.udag.net, ns.udag.org). It was registered on 18 October 2019 (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 DNSSEC-signed but currently fails validation, 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 113ms

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 155ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.31.143.90	600s	—	AS202108	united-domains GmbH	89.31.142.0/23	🇩🇪 Germany	—

📧 MX Records#

2 records 86ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx00.udag.de	62.146.106.39	mx00.udag.de	AS15598 NorthC Deutschland GmbH
20	3600s	mx01.udag.de	62.146.106.40	mx01.udag.de	AS15598 NorthC Deutschland GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	89.31.143.90
🔶 Autoconfig	89.31.143.90

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 325ms

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

✉️ SPF#

Policy	Record (gerlock.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 2026-10-09 18:41:46

www	89.31.143.90 (AS202108) (address records, no CNAME)
www vs bare domain	Same network gerlock.dk: 89.31.143.90 (AS202108) www.gerlock.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#

168ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'gerlock.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

184ms

Field	Value
Serial	2024120306
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 2026-10-12 13:46:23

Field	Value
Registrar	united-domains GmbH
Registered	2019-10-18
Expires	2026-10-31 (5d)

🔗 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#

113ms

155ms

86ms

AAAA

89ms

TXT

325ms

CAA

97ms

HTTPS

86ms

TLSA

58ms

SOA

184ms

MTA-STS

99ms

DNSSEC

168ms

SRV

126ms

Total

588ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-06-30 12:46:03	951ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-20 04:09:42 shown	588ms	3 NS 1 A 2 MX	⚠️ Bogus
2026-06-17 09:20:27	1231ms	3 NS 1 A 2 MX	🔓 Insecure