21computer.de - dns.ninja

`21computer.de`

DNSSEC	⚠️ Not signed
A	2a00:1169:103:99c0::^{🇫🇷 GODADDY-SXB2a00:1169:100::/40 SXB GCN VPS}
		PTR	`mc23133.ispgateway.de`
A	92.205.212.158^{🇫🇷 GODADDY-SXB92.205.208.0/21}
NS	`ns81.domaincontrol.com` ⭐
		A	97.74.101.32^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns61.domaincontrol.com`
NS	`ns82.domaincontrol.com`
		A	173.201.69.32^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns62.domaincontrol.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽¹⁵⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
MX	`21computer-de.mail.protection.outlook.com`⁽⁵⁰⁾
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::10^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbapr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::f^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00307.inbound.protection.outlook.com`
		A	52.101.68.0^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.68.27^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.68.39^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
TXT	`3i/Ou+92jJlPftgkvhrbtQB6pZZ+FsLfh+8nNU2P7w+YetceP2dGfzRKrMaz7fhMBCRWQMoHmHKRZ...`
TXT	`v=spf1 mx include:_spf.protonmail.ch include:spf.protection.outlook.com a inc...`
TXT	`MS=ms34670808`
TXT	`protonmail-verification=597903c8506e892d020e2018b6f7eeb63cabded6`
SOA	`ns81.domaincontrol.com`dns@jomax.net 2025-11-24 #10

`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=1785369332

WOT: SAFE (61/100)

Same first word

21computer.de

Similar names

computer21.com

computer21.de

computer21.biz

computer21.ru

DNS History

17 records (7 active, 10 former)

○NSns.namespace4you.de2015-06-03 → 2018-06-18 · 4 obs

● 2015-06-03 22:12:04
● 2018-06-18 07:16:18
○ 2026-02-17 09:08:38
○ 2026-07-30 00:13:34

○NSns2.namespace4you.de2015-06-03 → 2018-06-18 · 4 obs

● 2015-06-03 22:12:04
● 2018-06-18 07:16:18
○ 2026-02-17 09:08:38
○ 2026-07-30 00:13:34

●NSns81.domaincontrol.com2026-02-17 → 2026-07-30 · 3 obs

○ 2018-06-18 07:16:18
● 2026-02-17 09:08:38
● 2026-07-30 00:13:34

●NSns82.domaincontrol.com2026-02-17 → 2026-07-30 · 3 obs

○ 2018-06-18 07:16:18
● 2026-02-17 09:08:38
● 2026-07-30 00:13:34

●MX21computer-de.mail.protection.outlook.com2026-02-17 → 2026-07-30 · 3 obs

○ 2018-06-18 07:16:18
● 2026-02-17 09:08:38
● 2026-07-30 00:13:34

○MXmail.21computer.de2018-06-18 → 2018-06-18 · 4 obs

○ 2015-06-03 22:12:04
● 2018-06-18 07:16:18
○ 2026-02-17 09:08:38
○ 2026-07-30 00:13:34

●MXmail.protonmail.ch2026-02-17 → 2026-07-30 · 3 obs

○ 2018-06-18 07:16:18
● 2026-02-17 09:08:38
● 2026-07-30 00:13:34

●MXmailsec.protonmail.ch2026-02-17 → 2026-07-30 · 3 obs

○ 2018-06-18 07:16:18
● 2026-02-17 09:08:38
● 2026-07-30 00:13:34

○MXmxlb.ispgateway.de2015-06-03 → 2018-06-18 · 4 obs

● 2015-06-03 22:12:04
● 2018-06-18 07:16:18
○ 2026-02-17 09:08:38
○ 2026-07-30 00:13:34

○A134.119.45.922016-09-09 → 2018-06-18 · 5 obs

○ 2016-03-26 16:14:14
● 2016-09-09 12:45:48
● 2018-06-18 07:16:18
○ 2026-02-17 09:08:38
○ 2026-07-30 00:13:34

○A185.21.102.2532016-03-26 → 2016-03-26 · 4 obs

○ 2015-12-23 14:34:02
● 2016-03-26 16:14:14
○ 2016-09-09 12:45:48
○ 2026-07-30 00:13:34

○A2a00:1158:0:300:2e1c::12015-06-03 → 2015-12-23 · 4 obs

● 2015-06-03 22:12:04
● 2015-12-23 14:34:02
○ 2016-03-26 16:14:14
○ 2026-07-30 00:13:34

○A2a00:1158:0:300:3c5e::12016-03-26 → 2016-03-26 · 4 obs

○ 2015-12-23 14:34:02
● 2016-03-26 16:14:14
○ 2016-09-09 12:45:48
○ 2026-07-30 00:13:34

○A2a00:1158:1000:300::55c2016-09-09 → 2018-06-18 · 5 obs

○ 2016-03-26 16:14:14
● 2016-09-09 12:45:48
● 2018-06-18 07:16:18
○ 2026-02-17 09:08:38
○ 2026-07-30 00:13:34

●A2a00:1169:103:99c0::2026-02-17 → 2026-07-30 · 3 obs

○ 2018-06-18 07:16:18
● 2026-02-17 09:08:38
● 2026-07-30 00:13:34

○A80.67.17.2332015-06-03 → 2015-12-23 · 4 obs

● 2015-06-03 22:12:04
● 2015-12-23 14:34:02
○ 2016-03-26 16:14:14
○ 2026-07-30 00:13:34

●A92.205.212.1582026-02-17 → 2026-07-30 · 3 obs

○ 2018-06-18 07:16:18
● 2026-02-17 09:08:38
● 2026-07-30 00:13:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
21computer.de	ns81.domaincontrol.com, ns82.domaincontrol.com	-

✅ Authoritative Response

Server:97.74.101.32

NS records: ns81.domaincontrol.com, ns82.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21computer.de (unsigned zone)

⏱️ Timing

Total: 740ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`92.205.212.158`
AAAA	1	`2a00:1169:103:99c0::`
NS	2	`ns81.domaincontrol.com, ns82.domaincontrol.com`
MX	3	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 15)...`
TXT	4	`3i/Ou+92jJlPftgkvhrbtQB6pZZ+FsLfh+8nNU2P, v=spf1 mx include:_spf.protonmail.ch inc...`
SOA	1	`ns81.domaincontrol.com dns.jomax.net`

Analysis

IP Addresses

21computer.de directs to two IP numbers, 92.205.212.158 and 2a00:1169:103:99c0::

Other host names — login-24.com, hostmaster.login-24.com, mc23133.ispgateway.de and multimedia-e.com — share IP numbers with 21computer.de.

Name Servers

21computer.de is delegated to two name servers: ns81.domaincontrol.com and ns82.domaincontrol.com.

The name server configuration of 21computer.de is shared with other domains, for instance print-flash.de, aa-group.de, druckhaus-boettcher.de and two others.

21computer.de shares at least some of its name servers with other domains, such as jogoaposta.com.br.

ns81.domaincontrol.com and ns82.domaincontrol.com each resolve to one IP number: ns81.domaincontrol.com points to 97.74.101.32 and ns82.domaincontrol.com points to 173.201.69.32.

Mail Servers

21computer.de is handled by three mail servers: mail.protonmail.ch, mailsec.protonmail.ch and 21computer-de.mail.protection.outlook.com.

At least some of the mail servers used by 21computer.de are shared with other domains: hubclient.com, formafracta.com, naurhir.com and two others among them.

Hosts with 8 IP addresses each:

21computer-de.mail.protection.outlook.com resolves to 52.101.68.0, 52.101.68.27, 52.101.68.39 and 5 other IP addresses.

Host names carrying three IP numbers:

mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128.

mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.