`mail.js-ck.de`

DNSSEC	⚠️ Not signed
A	188.68.35.47^{🇩🇪 netcup-AS188.68.32.0/22}
		PTR	`js-ck.de`

`js-ck.de`

	DNSSEC	⚠️ Not signed
	A	188.68.35.47^{🇩🇪 netcup-AS188.68.32.0/22}
	NS	`root-dns.netcup.net` ⭐
	NS	`second-dns.netcup.net`
	NS	`third-dns.netcup.net`
	MX	`mail.js-ck.de` ⭐
	SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2020-12-13 #3

MX for

js-ck.de

Same first word

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DNS History

1 record (1 active, 0 former)

●A188.68.35.472026-04-18 → 2026-04-25 · 2 obs

● 2026-04-18 07:24:40
● 2026-04-25 16:25:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, z.nic.de, a.nic.de	-
js-ck.de	third-dns.netcup.net, root-dns.netcup.net, second-dns.netcup.net	-

✅ Authoritative Response

Server:37.221.199.199

NS records: third-dns.netcup.net, root-dns.netcup.net, second-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for js-ck.de (unsigned zone)

⏱️ Timing

Total: 4512ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.68.35.47`

Analysis

Mail Server Role

The mail server for js-ck.de is mail.js-ck.de.

IP Addresses

mail.js-ck.de points to a single IP number: 188.68.35.47.

Other host names, for instance js-ck.de, share IP numbers with mail.js-ck.de.

mail.js-ck.de - robtex.com

mail.js-ck.de

js-ck.de