csb-system.com - dns.ninja

`csb-system.com`

DNSSEC	⚠️ Not signed
A	31.204.117.146^{🇩🇪 RECAST-AS31.204.112.0/20 recast IT}
		PTR	`csb-web-01.csb.recast-it.net`
NS	`srvdns1` ⭐
NS	`dns.csb.de` ⚠️ Not in zone NS records
		A	217.7.0.2^{🇩🇪 DTAG217.0.0.0/13 Deutsche Telekom AG, Internet service provider}
			PTR	`mail.csb-college.de`
NS	`pns.dtag.de`
		A	2003:40:8000::100^{🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space}
		A	194.25.0.125^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`pns.dtag.de`
NS	`secondary006.dtag.net` ⚠️ Not in parent delegation
		A	2a00:fa8:3:0:100:0:6:1^{🇩🇪 NETUSE2a00:fa8:3::/48 NSDTAG}
			PTR	`secondary006.dtag.net`
		A	195.244.245.25^{🇩🇪 NETUSE195.244.245.0/24}
			PTR	`secondary006.dtag.net`
MX	`csbsystem-com0i.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::5^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00205.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::b^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbbpr03cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.73.6^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am6pr04cu00306.inbound.protection.outlook.com`
		A	52.101.73.8^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr04cu00500.inbound.protection.outlook.com`
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
		A	52.101.73.30^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00306.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com include:2522963.spf02.hubspotemail....`
SOA	`srvdns1`webmaster@csb.de 2025-12-08 #33

`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=1786318434

WOT: UNKNOWN (61/100)

Subdomains

blackhole.csb-system.com

www.csb-system.com

Same first word

csb-system.biz

csb-system.net

csb-system.de

csb-system.at

csb-system.ch

csb-system.ru

csb-system.com

csb-system.nl

Similar names

bc-systems.com

cbs-system.de

bc-systems.ch

bcs-system.ch

cb-systems.com

DNS History

10 records (6 active, 4 former)

●NSdns.csb.de2008-02-04 → 2026-08-09 · 2 obs

● 2008-02-04 04:29:42
● 2026-08-09 23:34:32

●NSpns.dtag.de2008-02-04 → 2026-08-09 · 2 obs

● 2008-02-04 04:29:42
● 2026-08-09 23:34:32

●NSsecondary006.dtag.net2026-03-20 → 2026-08-09 · 3 obs

○ 2020-03-28 08:02:06
● 2026-03-20 23:45:44
● 2026-08-09 23:34:32

○NSsrvdns2020-03-28 → 2020-03-28 · 4 obs

○ 2017-01-22 19:02:42
● 2020-03-28 08:02:06
○ 2026-03-20 23:45:44
○ 2026-08-09 23:34:32

●NSsrvdns12026-03-20 → 2026-08-09 · 3 obs

○ 2020-03-28 08:02:06
● 2026-03-20 23:45:44
● 2026-08-09 23:34:32

○NSsrvmail2015-07-04 → 2017-01-22 · 5 obs

○ 2008-02-04 04:29:42
● 2015-07-04 13:31:28
● 2017-01-22 19:02:42
○ 2020-03-28 08:02:06
○ 2026-08-09 23:34:32

●MXcsbsystem-com0i.mail.protection.outlook.com2026-05-29 → 2026-08-09 · 3 obs

○ 2026-05-02 20:37:28
● 2026-05-29 17:31:34
● 2026-08-09 23:34:32

○MXmail.csb-system.com2026-03-20 → 2026-05-02 · 5 obs

○ 2020-03-28 08:02:06
● 2026-03-20 23:45:44
● 2026-05-02 20:37:28
○ 2026-05-29 17:31:34
○ 2026-08-09 23:34:32

○MXmail.csb.de2008-02-04 → 2020-03-28 · 4 obs

● 2008-02-04 04:29:42
● 2020-03-28 08:02:06
○ 2026-03-20 23:45:44
○ 2026-08-09 23:34:32

●A31.204.117.1462026-05-29 → 2026-08-09 · 2 obs

● 2026-05-29 17:31:34
● 2026-08-09 23:34:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
csb-system.com	pns.dtag.de, dns.csb.de	-

✅ Authoritative Response

Server:194.25.0.125

NS records: pns.dtag.de, dns.csb.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csb-system.com (unsigned zone)

⏱️ Timing

Total: 3842ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`31.204.117.146`
NS	2	`pns.dtag.de, secondary006.dtag.net`
MX	1	`csbsystem-com0i.mail.protection.outlook.`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`srvdns1 webmaster.csb.de`

Analysis

Hierarchy

csb-system.com serves as the parent of blackhole.csb-system.com and www.csb-system.com.

IP Addresses

csb-system.com has exactly one IP address — 31.204.117.146.

www.csb-system.com, csb-system.net, www.csb.com plus two other host names have IP numbers in common with csb-system.com.

Name Servers

Four name servers handle the delegation for csb-system.com: srvdns1, dns.csb.de, pns.dtag.de and secondary006.dtag.net.

The name servers of csb-system.com overlap at least partially with those of other domains — among them komponenten-fertigung.de, vollwaermeschutz.de, 63.240.93.in-addr.arpa and two more.

These name servers commonly appear in delegations together with ns1.telekom.net, secondary007.dtag.net, dnsreh01.rehau.com and 7 other.

Host names pointing to two IP addresses:

pns.dtag.de points to 194.25.0.125 and 2003:40:8000::100.

secondary006.dtag.net points to 195.244.245.25 and 2a00:fa8:3:0:100:0:6:1.

Host names resolving to a single IP address:

dns.csb.de points to 217.7.0.2.

Mail Servers

csb-system.com uses one mail server — csbsystem-com0i.mail.protection.outlook.com.

csbsystem-com0i.mail.protection.outlook.com has 8 IP addresses: 52.101.73.6, 52.101.73.8, 52.101.73.16 plus 5 more.