jbuch.dk

📜 Historical scan 2026-06-23 21:03:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jbuch.dk is a .dk domain served by 3 nameservers (li-ns1.wendt-net.dk, li-ns2.wendt-net.dk, li-ns3.wendt-net.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.189.180.18 is hosted by Key4ce (AS213023) in The Netherlands. Mail is handled by mail.lnxsvr.eu. The zone is not DNSSEC-signed, publishes a 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 133ms

Nameserver	IP addresses	PTR	ASN / ISP
li-ns1.wendt-net.dk	185.189.180.18 2a0b:f380:0:1:6::10	mail.lnxsvr.eu mail.lnxsvr.eu	AS213023 ICT Shift AS213023 ICT Shift
li-ns2.wendt-net.dk	185.189.180.22 2a0b:f380:0:2::101:42	filter2.mail4ce.com —	AS213023 ICT Shift AS213023 ICT Shift
li-ns3.wendt-net.dk	185.189.180.15 2a0b:f380:0:1:6::11	filter2.mail4ce.com —	AS213023 ICT Shift AS213023 ICT Shift

🌍 A Records#

1 records 102ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.189.180.18	3600s	mail.lnxsvr.eu	AS213023	Key4ce	185.189.180.0/24	🇳🇱 The Netherlands	—

📧 MX Records#

1 records 104ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.lnxsvr.eu	185.189.180.18 2a0b:f380:0:1:6::10	mail.lnxsvr.eu mail.lnxsvr.eu	AS213023 ICT Shift AS213023 ICT Shift

🔷 AAAA Records (IPv6)#

1 records 98ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a0b:f380:0:1:6::10	3600s	mail.lnxsvr.eu	AS213023	Key4ce	2a0b:f380:0:0:0:0:0:0/48	🇳🇱 The Netherlands	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 439ms

TXT Record
v=spf1 a mx a:mail.lnxsvr.eu ip4:185.189.180.18/24 -all

✉️ SPF#

Policy	Record (jbuch.dk)
-all (hard fail)	v=spf1 a mx a:mail.lnxsvr.eu ip4:185.189.180.18/24 -all

📨 DMARC#

Policy	Record (_dmarc.jbuch.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=s; aspf=s

📬 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 20:03:53

www CNAME	jbuch.dk (all on jbuch.dk) → 185.189.180.18 2a0b:f380:0:1:6::10 (AS213023)
www vs bare domain	Same network jbuch.dk: 185.189.180.18 2a0b:f380:0:1:6::10 (AS213023) www.jbuch.dk: 185.189.180.18 2a0b:f380:0:1:6::10 (AS213023)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.jbuch.dk	FMeEV6kPXKVI0pbWujuLjzW5_noe0xF0OkOxNqUmy5w

🔗 TLSA / DANE#

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

🔐 DNSSEC#

312ms

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

🏷️ SOA#

96ms

Field	Value
Serial	1777418021
Primary NS (MNAME)	li-ns1.wendt-net.dk
Responsible (RNAME)	jbuchlarsen@gmail.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

133ms

102ms

104ms

AAAA

98ms

TXT

439ms

CAA

107ms

HTTPS

100ms

TLSA

426ms

SOA

96ms

MTA-STS

130ms

DNSSEC

312ms

SRV

398ms

Total

1858ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 20:03:53	2303ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-27 20:08:37	2892ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-28 20:12:14	1701ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-26 16:03:09	2473ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-23 21:03:26 shown	1858ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-22 18:44:14	1019ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 12:02:19	7002ms	3 NS 1 A 1 MX	🔓 Insecure