cssys.de - dns.ninja

`cssys.de`

DNSSEC	⚠️ Not signed
A	2a03:4000:61:d0f2::22:4063^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
A	202.61.233.174^{🇩🇪 netcup-AS202.61.233.0/24}
NS	`root-dns.netcup.net` ⭐
		A	2a03:4000:0:1::e1e1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`root-dns.netcup.net`
		A	46.38.225.225^{🇩🇪 netcup-AS46.38.225.0/24}
NS	`second-dns.netcup.net`
		A	2a03:4000:2:24b::c7c7^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`second-dns.netcup.net`
		A	37.221.199.199^{🇩🇪 netcup-AS37.221.196.0/22}
NS	`third-dns.netcup.net`
		A	2a03:4001:0:106::3f44^{🇩🇪 netcup-AS2a03:4001::/32 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
		A	188.68.63.68^{🇩🇪 netcup-AS188.68.63.0/24 NETCUP-GMBH}
MX	`mail.cssys.de` ⭐
		A	202.61.233.176^{🇩🇪 netcup-AS202.61.233.0/24}
			PTR	`mxe9b0.netcup.net`
MX	`mxe9b0.netcup.net`⁽⁵⁰⁾
		A	2a03:4000:0:212:640b:e7ff:fe33:7cd0^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`mxe9b0.netcup.net`
		A	202.61.233.176^{🇩🇪 netcup-AS202.61.233.0/24}
			PTR	`mxe9b0.netcup.net`
TXT	`v=spf1 mx a include:_spf.webhosting.systems ~all`
SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2025-07-31 #1

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1784711895

Subdomains

mail.cssys.de

Same first word

cssys.com.au

cssys.com

cssys.cn

cssys.de

Similar names

syscs.com

scsys.co.uk

ssysc.com

syssc.com

sscsy.com

scyss.com

scsys.com

scsys.de

scssy.cn

ysssc.com

sycss.org

scsys.net

ssycs.com

scssy.com

scsys.ch

scsys.eu

sycss.com

scsys.com.hk

DNS History

20 records (7 active, 13 former)

○NSns1.top-hoster.de2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

○NSns10.bytes24.de2015-07-08 → 2015-07-08 · 3 obs

● 2015-07-08 16:26:06
○ 2015-11-11 11:50:40
○ 2026-07-22 09:25:52

○NSns11.bytes24.de2015-07-08 → 2015-07-08 · 3 obs

● 2015-07-08 16:26:06
○ 2015-11-11 11:50:40
○ 2026-07-22 09:25:52

○NSns2.top-hoster.de2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

○NSns3.top-hoster.de2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

○NSns4.top-hoster.de2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

●NSroot-dns.netcup.net2026-04-03 → 2026-07-22 · 3 obs

○ 2018-06-19 16:25:26
● 2026-04-03 11:56:10
● 2026-07-22 09:25:52

●NSsecond-dns.netcup.net2026-04-03 → 2026-07-22 · 3 obs

○ 2018-06-19 16:25:26
● 2026-04-03 11:56:10
● 2026-07-22 09:25:52

●NSthird-dns.netcup.net2026-04-03 → 2026-07-22 · 3 obs

○ 2018-06-19 16:25:26
● 2026-04-03 11:56:10
● 2026-07-22 09:25:52

●MXmail.cssys.de2015-07-08 → 2026-07-22 · 5 obs

● 2015-07-08 16:26:06
○ 2015-11-11 11:50:40
○ 2018-06-19 16:25:26
● 2026-04-03 11:56:10
● 2026-07-22 09:25:52

○MXmx1.configcenter.info2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

○MXmx2.configcenter.info2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

○MXmx3.configcenter.info2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

○MXmx4.configcenter.info2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

○MXmx5.configcenter.info2015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

●MXmxe9b0.netcup.net2026-04-03 → 2026-07-22 · 3 obs

○ 2018-06-19 16:25:26
● 2026-04-03 11:56:10
● 2026-07-22 09:25:52

●A202.61.233.1742026-04-03 → 2026-07-22 · 3 obs

○ 2018-06-19 16:25:26
● 2026-04-03 11:56:10
● 2026-07-22 09:25:52

○A217.6.204.1112015-07-08 → 2015-07-08 · 3 obs

● 2015-07-08 16:26:06
○ 2015-11-11 11:50:40
○ 2026-07-22 09:25:52

●A2a03:4000:61:d0f2::22:40632026-04-03 → 2026-07-22 · 3 obs

○ 2018-06-19 16:25:26
● 2026-04-03 11:56:10
● 2026-07-22 09:25:52

○A31.47.240.1442015-11-11 → 2018-06-19 · 5 obs

○ 2015-07-08 16:26:06
● 2015-11-11 11:50:40
● 2018-06-19 16:25:26
○ 2026-04-03 11:56:10
○ 2026-07-22 09:25:52

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:46.38.225.225

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cssys.de (unsigned zone)

⏱️ Timing

Total: 688ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.61.233.174`
AAAA	1	`2a03:4000:61:d0f2::22:4063`
NS	3	`second-dns.netcup.net, third-dns.netcup.net...`
MX	2	`mxe9b0.netcup.net (pri: 50), mail.cssys.de (pri: 10)`
TXT	1	`v=spf1 mx a include:_spf.webhosting.syst`
SOA	1	`root-dns.netcup.net dnsadmin.netcup.net`

Analysis

Hierarchy

mail.cssys.de is a subdomain of cssys.de.

IP Addresses

cssys.de points to the IP addresses 202.61.233.174 and 2a03:4000:61:d0f2::22:4063

Two other host names, along with franke-ac.com, ae9ae.netcup.net and reichard-com.de, also share IP numbers with cssys.de.

Name Servers

cssys.de carries NS records delegating to root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

The name servers of cssys.de overlap at least partially with those of other domains — among them masterpick.de, miertz.de, erlech.com and two more.

root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net are three hostnames that each resolve to a pair of IP addresses: root-dns.netcup.net to 46.38.225.225 and 2a03:4000:0:1::e1e1, second-dns.netcup.net to 37.221.199.199 and 2a03:4000:2:24b::c7c7, and third-dns.netcup.net to 188.68.63.68 and 2a03:4001:0:106::3f44.

Mail Servers

cssys.de is served by two mail servers, mail.cssys.de and mxe9b0.netcup.net.

There is at least a partial MX overlap between cssys.de and other domains, including zaxel.de, birba.de, nicenews.de and two others.

These mail servers tend to appear in combination with mail servers mail.zaxel.de, mail.birba.de, mail.nicenews.de and 4 others.

Host names that have two IP addresses:

mxe9b0.netcup.net resolves to two addresses: 202.61.233.176 and 2a03:4000:0:212:640b:e7ff:fe33:7cd0.

Host names that point to one IP address:

The hostname mail.cssys.de resolves to 202.61.233.176.

mxe9b0.netcup.net along with mail.cssys.de each resolve to 202.61.233.176 IP addresses.