`computer-sommer.de`

DNSSEC	⚠️ Not signed
A	185.243.11.83^{🇩🇪 netcup-AS185.243.11.0/24}
		PTR	`rw0b53.webhosting.systems`
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}
			PTR	`root-dns.netcup.net`
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}
			PTR	`second-dns.netcup.net`
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}
			PTR	`third-dns.netcup.net`
MX	`mx.mymailwall.com` ⭐
		A	91.212.136.1^{🇦🇹 IKARUS-AS91.212.136.0/24 IKARUS Security Software GmbH}
			PTR	`mx.mymailwall.com`
TXT	`v=spf1 mx a include:_spf.webhosting.systems include:spf.protection.outlook.co...`
TXT	`v=DMARC1; p=none; rua=mailto:jobs@computer-sommer.de`
TXT	`MS=ms90609288`
TXT	`apple-domain-verification=UtqxY7i4R9FkSOAh`
SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2026-02-02 #51

`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=1778631483

WOT: SAFE (62/100)

Subdomains

www.computer-sommer.de

Same first word

computer-sommer.de

DNS History

12 records (5 active, 7 former)

○NSns3.schlund.de2015-06-21 → 2018-05-24 · 4 obs

● 2015-06-21 08:22:24
● 2018-05-24 12:59:12
○ 2026-04-10 08:38:42
○ 2026-05-13 00:27:32

○NSns4.schlund.de2015-06-21 → 2018-05-24 · 4 obs

● 2015-06-21 08:22:24
● 2018-05-24 12:59:12
○ 2026-04-10 08:38:42
○ 2026-05-13 00:27:32

●NSroot-dns.netcup.net2026-04-10 → 2026-05-13 · 3 obs

○ 2018-05-24 12:59:12
● 2026-04-10 08:38:42
● 2026-05-13 00:27:32

●NSsecond-dns.netcup.net2026-04-10 → 2026-05-13 · 3 obs

○ 2018-05-24 12:59:12
● 2026-04-10 08:38:42
● 2026-05-13 00:27:32

●NSthird-dns.netcup.net2026-04-10 → 2026-05-13 · 3 obs

○ 2018-05-24 12:59:12
● 2026-04-10 08:38:42
● 2026-05-13 00:27:32

○MXmailgate1er.compusom.de2015-06-21 → 2018-05-24 · 4 obs

● 2015-06-21 08:22:24
● 2018-05-24 12:59:12
○ 2026-04-10 08:38:42
○ 2026-05-13 00:27:32

●MXmx.mymailwall.com2026-04-10 → 2026-05-13 · 3 obs

○ 2018-05-24 12:59:12
● 2026-04-10 08:38:42
● 2026-05-13 00:27:32

○MXmx00.kundenserver.de2015-06-21 → 2018-05-24 · 4 obs

● 2015-06-21 08:22:24
● 2018-05-24 12:59:12
○ 2026-04-10 08:38:42
○ 2026-05-13 00:27:32

○MXmx01.kundenserver.de2015-06-21 → 2018-05-24 · 4 obs

● 2015-06-21 08:22:24
● 2018-05-24 12:59:12
○ 2026-04-10 08:38:42
○ 2026-05-13 00:27:32

●A185.243.11.832026-04-10 → 2026-05-13 · 3 obs

○ 2018-05-24 12:59:12
● 2026-04-10 08:38:42
● 2026-05-13 00:27:32

○A212.227.144.2382015-06-21 → 2016-12-31 · 4 obs

● 2015-06-21 08:22:24
● 2016-12-31 01:22:40
○ 2018-05-24 12:59:12
○ 2026-05-13 00:27:32

○A217.160.0.722018-05-24 → 2018-05-24 · 4 obs

○ 2016-12-31 01:22:40
● 2018-05-24 12:59:12
○ 2026-04-10 08:38:42
○ 2026-05-13 00:27:32

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:188.68.63.68

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for computer-sommer.de (unsigned zone)

⏱️ Timing

Total: 2069ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.243.11.83`
NS	3	`third-dns.netcup.net, root-dns.netcup.net...`
MX	1	`mx.mymailwall.com (pri: 0)`
TXT	4	`v=spf1 mx a include:_spf.webhosting.syst, v=DMARC1; p=none; rua=mailto:jobs@comput...`
SOA	1	`root-dns.netcup.net dnsadmin.netcup.net`

Analysis

Hierarchy

The parent of www.computer-sommer.de is computer-sommer.de.

IP Addresses

computer-sommer.de points to a single IP address: 185.243.11.83.

Other host names such as behindertenservice.at, www.schachschule-hamburg.de, juergen-wuerth.de, wuerth-biokaese.de and www.paracycling.at share IPs with computer-sommer.de.

Name Servers

computer-sommer.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

computer-sommer.de at least partially shares name servers with other domains, for example sizeless.de, hunderally.de, kmu-sicherheit.eu, touchapps.de and feuerwehroldtimer-schorndorf.de.

Host names with two IP numbers:

root-dns.netcup.net points to 2a03:4000:0:1::e1e1 and 46.38.225.225

second-dns.netcup.net points to 2a03:4000:2:24b::c7c7 and 37.221.199.199

third-dns.netcup.net points to 2a03:4001:0:106::3f44 and 188.68.63.68

Mail Servers

The mx.mymailwall.com mail server handles computer-sommer.de.

computer-sommer.de shares the same mail server setup as other domains, including etag.at, fischerparkett.com, d-ru.de, netattacks.de and pmr.at.

computer-sommer.de shares at least partially some mail servers with other domains, for instance geodata.com, scheidbach.at, graenobel.at, bfvfb.at and computerlechner.at.

mx.mymailwall.com points to a single IP number: 91.212.136.1.

computer-sommer.de - robtex.com