`cs-us.com`

DNSSEC	⚠️ Not signed
A	87.106.129.107^{🇩🇪 AS8560}
		PTR	`cs-us.de`
NS	`dns1.regsystem.net` ⭐
		A	2a02:20a8:a000:4::2^{🇩🇪 AS15830}
			PTR	`frigg.dnsnodes.com`
		A	217.79.214.245^{🇩🇪 AS15830}
NS	`dns2.regsystem.net`
		A	2a02:20a8:a000:4::53^{🇩🇪 AS15830}
			PTR	`thor.dnsnodes.eu`
		A	217.79.214.253^{🇩🇪 AS15830}
NS	`dns3.regsystem.net` ⚠️ Not in parent delegation
		A	2a02:4c00:0:8000::2^{🇩🇪 AS12676}
			PTR	`odin.dnsnodes.eu`
		A	2a02:4c00:0:8000::5^{🇩🇪 AS12676}
			PTR	`odin.dnsnodes.eu`
		A	213.9.14.107^{🇩🇪 AS12676}
		A	213.9.44.85^{🇩🇪 AS12676}
MX	`mail.cs-us.com` ⭐
		A	87.106.129.107^{🇩🇪 AS8560}
			PTR	`cs-us.de`
MX	`cs-us.com`⁽³⁰⁾
		A	87.106.129.107^{🇩🇪 AS8560}
			PTR	`cs-us.de`
MX	`smtp.cs-us.com`⁽⁴⁰⁾
		A	87.106.129.107^{🇩🇪 AS8560}
			PTR	`cs-us.de`
MX	`imap.cs-us.com`⁽⁵⁰⁾
		A	87.106.129.107^{🇩🇪 AS8560}
			PTR	`cs-us.de`
TXT	`v=spf1 a:cs-us.com ip4:87.106.129.107 include:_spf.google.com ~all`
SOA	`dns1.regsystem.net`hostmaster@regsystem.net 2026-01-26 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

MX for

cs-us.com

Up

smtp.cs-us.com

imap.cs-us.com

mail.cs-us.com

Same first word

cs-us.de

cs-us.com

Similar names

u-scs.com

sc-us.com

ss-cu.org

us-cs.com

sc-us.org

sc-us.gov

u-ssc.com

DNS History

9 records (8 active, 1 former)

●NSdns1.regsystem.net2015-08-19 → 2026-02-20 · 3 obs

○ 2008-03-20 04:31:06
● 2015-08-19 20:24:18
● 2026-02-20 20:03:38

●NSdns2.regsystem.net2015-08-19 → 2026-02-20 · 3 obs

○ 2008-03-20 04:31:06
● 2015-08-19 20:24:18
● 2026-02-20 20:03:38

●NSdns3.regsystem.net2026-02-20 → 2026-02-20 · 3 obs

○ 2015-08-19 20:24:18
● 2026-02-20 20:03:30
● 2026-02-20 20:03:38

●MXcs-us.com2026-02-20 → 2026-02-20 · 3 obs

○ 2015-08-19 20:24:18
● 2026-02-20 20:03:30
● 2026-02-20 20:03:38

●MXimap.cs-us.com2026-02-20 → 2026-02-20 · 3 obs

○ 2015-08-19 20:24:18
● 2026-02-20 20:03:30
● 2026-02-20 20:03:38

●MXmail.cs-us.com2015-08-19 → 2026-02-20 · 3 obs

○ 2008-03-20 04:31:06
● 2015-08-19 20:24:18
● 2026-02-20 20:03:38

●MXsmtp.cs-us.com2026-02-20 → 2026-02-20 · 3 obs

○ 2015-08-19 20:24:18
● 2026-02-20 20:03:30
● 2026-02-20 20:03:38

○A81.169.141.22015-08-19 → 2016-12-24 · 5 obs

○ 2008-03-20 04:31:06
● 2015-08-19 20:24:18
● 2016-12-24 18:10:20
○ 2026-02-20 20:03:30
○ 2026-02-20 20:03:38

●A87.106.129.1072026-02-20 → 2026-02-20 · 3 obs

○ 2016-12-24 18:10:20
● 2026-02-20 20:03:30
● 2026-02-20 20:03:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cs-us.com	dns1.regsystem.net, dns2.regsystem.net	-

✅ Authoritative Response

Server: 217.79.214.245

NS records: dns1.regsystem.net, dns2.regsystem.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cs-us.com (unsigned zone)

⏱️ Timing

Total: 225ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.106.129.107`
NS	3	`dns3.regsystem.net, dns1.regsystem.net...`
MX	4	`mail.cs-us.com (pri: 20), cs-us.com (pri: 30)...`
TXT	1	`v=spf1 a:cs-us.com ip4:87.106.129.107 in`
SOA	1	`dns1.regsystem.net hostmaster.regsystem.`

AI analysis

cs-us.com is a parent of smtp.cs-us.com, imap.cs-us.com and mail.cs-us.com.

cs-us.com serves as the mail server for cs-us.com.

imap.cs-us.com, mail.cs-us.com and smtp.cs-us.com are commonly used as mail servers together with cs-us.com.

cs-us.com points to a single IP number: 87.106.129.107.

Other host names, for instance imap.csus.de, mail.webdesign-strausberg.de, mail.sagrauske.de, csus.de and www.webdesign-strausberg.de share IP numbers with cs-us.com.

The domain cs-us.com is delegated to three name servers: dns1.regsystem.net, dns2.regsystem.net and dns3.regsystem.net.

cs-us.com shares name servers with other domains at least partially, for instance lms-coburg.com, ziegeler-solar.de, novtsrv.de, gullyver.tv and kfzbremsentechnik.de.

Host names with four IP numbers:

Host name dns3.regsystem.net points to: 2a02:4c00:0:8000::2, 2a02:4c00:0:8000::5, 213.9.14.107 and 213.9.44.85.

Host names with two IP numbers:

Host name dns1.regsystem.net points to: 2a02:20a8:a000:4::2 and 217.79.214.245.

Host name dns2.regsystem.net points to: 2a02:20a8:a000:4::53 and 217.79.214.253.

cs-us.com is handled by four mail servers: cs-us.com, imap.cs-us.com, mail.cs-us.com and smtp.cs-us.com.

Hostnames that point to 87.106.129.107: cs-us.com, imap.cs-us.com, mail.cs-us.com and smtp.cs-us.com.

cs-us.com - robtex.com

cs-us.com

com

MX for

Up

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

AI analysis

`cs-us.com`

`com`