computer42.org - dns.ninja

computer42.org

DNSSEC⚠️ Not signed
A144.76.43.40🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1
PTRobelix.hetzner.computer42.org
NSdns1.computer42.org
A144.76.43.40🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1
PTRobelix.hetzner.computer42.org
NSdns2.computer42.org
A24.134.103.65🇩🇪 VODANET24.134.0.0/16 Vodafone-gesamt
PTRbusiness-24-134-103-65.pool2.vodafone-ip.de
NSns1.first-ns.de ⚠️ Not in parent delegation
A2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns1.first-ns.de
A213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRns1.first-ns.de
NSrobotns2.second-ns.de ⚠️ Not in parent delegation
A2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRrobotns2.second-ns.de
A213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRrobotns2.second-ns.de
NSrobotns3.second-ns.com ⚠️ Not in parent delegation
A2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48
PTRrobotns3.second-ns.com
A193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24
PTRrobotns3.second-ns.com
MXmail-trap1.computer42.org
A144.76.43.55🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1
PTRtroubardix.hetzner.computer42.org
MXmail-rz.computer42.org(20)
A144.76.43.40🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1
PTRobelix.hetzner.computer42.org
MXmail-schiller.computer42.org(30)
A24.134.103.65🇩🇪 VODANET24.134.0.0/16 Vodafone-gesamt
PTRbusiness-24-134-103-65.pool2.vodafone-ip.de
MXmail-trap2.computer42.org(40)
A144.76.43.55🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1
PTRtroubardix.hetzner.computer42.org
TXTgoogle-site-verification=3DZ0-6wthejDJkoQOXGyNJYHzuF5i5wUkptCHo3r8ZU
TXTgoogle-site-verification=YlpphE804_geoHSIgOROERRE1LzuVs6-vWu9EpSE-L8
TXTv=spf1 mx:computer42.org -all
SOAdns1.computer42.orghostmaster@computer42.org serial=2603261323

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1783248567
WOT: SAFE (62/100)

Subdomains

Same first word

Similar names

DNS History

16 records (10 active, 6 former)

20162017201820192020202120222023202420252026NSdns1.computer42.orgdns2.computer42.orgns1.first-ns.derobotns2.second-ns.derobotns3.second-ns.comasterix.hetzner.computer42.orgdns01.pironet-ndh.comdns02.pironet-ndh.comdns03.pironet-ndh.comobelix.hetzner.computer42.orgMXmail-rz.computer42.orgmail-schiller.computer42.orgmail-trap1.computer42.orgmail-trap2.computer42.orgA144.76.43.4046.4.84.38
NSasterix.hetzner.computer42.org2015-08-13 → 2015-08-13 · 3 obs
● 2015-08-13 08:01:18
○ 2015-12-08 15:33:46
○ 2026-07-05 10:59:34
NSdns01.pironet-ndh.com2015-08-13 → 2017-04-03 · 4 obs
● 2015-08-13 08:01:18
● 2017-04-03 09:47:12
○ 2020-04-01 09:58:56
○ 2026-07-05 10:59:34
NSdns02.pironet-ndh.com2015-08-13 → 2017-04-03 · 4 obs
● 2015-08-13 08:01:18
● 2017-04-03 09:47:12
○ 2020-04-01 09:58:56
○ 2026-07-05 10:59:34
NSdns03.pironet-ndh.com2015-08-13 → 2017-04-03 · 4 obs
● 2015-08-13 08:01:18
● 2017-04-03 09:47:12
○ 2020-04-01 09:58:56
○ 2026-07-05 10:59:34
NSdns1.computer42.org2017-04-03 → 2026-07-05 · 3 obs
○ 2016-07-21 22:52:58
● 2017-04-03 09:47:12
● 2026-07-05 10:59:34
NSdns2.computer42.org2020-04-01 → 2026-07-05 · 3 obs
○ 2017-04-03 09:47:12
● 2020-04-01 09:58:56
● 2026-07-05 10:59:34
NSns1.first-ns.de2020-04-01 → 2026-07-05 · 3 obs
○ 2017-04-03 09:47:12
● 2020-04-01 09:58:56
● 2026-07-05 10:59:34
NSobelix.hetzner.computer42.org2015-12-08 → 2016-07-21 · 5 obs
○ 2015-08-13 08:01:18
● 2015-12-08 15:33:46
● 2016-07-21 22:52:58
○ 2017-04-03 09:47:12
○ 2026-07-05 10:59:34
NSrobotns2.second-ns.de2020-04-01 → 2026-07-05 · 3 obs
○ 2017-04-03 09:47:12
● 2020-04-01 09:58:56
● 2026-07-05 10:59:34
NSrobotns3.second-ns.com2020-04-01 → 2026-07-05 · 3 obs
○ 2017-04-03 09:47:12
● 2020-04-01 09:58:56
● 2026-07-05 10:59:34
MXmail-rz.computer42.org2015-08-13 → 2026-07-05 · 2 obs
● 2015-08-13 08:01:18
● 2026-07-05 10:59:34
MXmail-schiller.computer42.org2015-08-13 → 2026-07-05 · 2 obs
● 2015-08-13 08:01:18
● 2026-07-05 10:59:34
MXmail-trap1.computer42.org2015-08-13 → 2026-07-05 · 2 obs
● 2015-08-13 08:01:18
● 2026-07-05 10:59:34
MXmail-trap2.computer42.org2015-08-13 → 2026-07-05 · 2 obs
● 2015-08-13 08:01:18
● 2026-07-05 10:59:34
A144.76.43.402015-12-08 → 2026-07-05 · 6 obs
○ 2015-08-13 08:01:18
● 2015-12-08 15:33:46
● 2016-07-21 22:52:58
○ 2017-04-03 09:47:12
● 2020-04-01 09:58:56
● 2026-07-05 10:59:34
A46.4.84.382015-08-13 → 2015-08-13 · 3 obs
● 2015-08-13 08:01:18
○ 2015-12-08 15:33:46
○ 2026-07-05 10:59:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
computer42.orgdns1.computer42.org, dns2.computer42.org2 records

✅ Authoritative Response

Server:144.76.43.40

NS records: dns1.computer42.org, dns2.computer42.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for computer42.org (unsigned zone)

⏱️ Timing

Total: 1205ms | Queries: -

📄 Records

TypeCountSample Data
A1144.76.43.40
NS5dns1.computer42.org, robotns3.second-ns.com...
MX4mail-trap2.computer42.org (pri: 40), mail-trap1.computer42.org (pri: 10)...
TXT3v=spf1 mx:computer42.org -all, google-site-verification=3DZ0-6wthejDJko...
SOA1dns1.computer42.org hostmaster.computer4

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (dns1.computer42.org, dns2.computer42.org)

Analysis

Hierarchy

The host names dns2.computer42.org, mail-schiller.computer42.org, bodendorf.computer42.org, mail-rz.computer42.org and video.computer42.org — among a few others — fall under the parent domain computer42.org.

IP Addresses

computer42.org resolves to one IP address: 144.76.43.40.

mail-rz.computer42.org, obelix.hetzner.computer42.org, proarc-gmbh.de and two other host names share IP numbers with computer42.org.

Name Servers

computer42.org has five name servers, which are robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de and two others.

At least some of computer42.org's name servers are shared with other domains, for example colorcards.de, brustanhaenger.de, ghostlyman.com and two more.

These name servers are often deployed together with the name servers hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com, helium.ns.hetzner.de and dns1.computer42.org.

Hostnames that resolve to two IP addresses:

robotns3.second-ns.com directs traffic to 193.47.99.3 and 2001:67c:192c::add:a3.

ns1.first-ns.de directs traffic to 213.239.242.238 and 2a01:4f8:0:a101::a:1.

robotns2.second-ns.de directs traffic to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2.

Hosts with just one IP address:

dns1.computer42.org has the IP address 144.76.43.40.

dns2.computer42.org has the IP address 24.134.103.65.

Mail Servers

Mail for computer42.org is handled by four mail servers: mail-rz.computer42.org, mail-schiller.computer42.org, mail-trap1.computer42.org and mail-trap2.computer42.org.

At least some of computer42.org's mail servers are shared with other domains, among them proarc-gmbh.de, tief-unten.de and proarc-solution.de.

mail-rz.computer42.org points to 144.76.43.40. mail-schiller.computer42.org points to 24.134.103.65. mail-trap1.computer42.org and mail-trap2.computer42.org both point to 144.76.43.55. Each of the four hosts has exactly one IP address.

Both mail-trap1.computer42.org and mail-trap2.computer42.org resolve to 144.76.43.55 IP addresses each.