linux-tutorial.org - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

linux-tutorial.org

DNSSEC⚠️ Not signed
A37.27.38.71🇫🇮 Hetzner37.27.0.0/16 HETZNER-DC
PTRstatic.71.38.27.37.clients.your-server.de
NSns1.first-ns.de ⭐
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
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
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.linux-tutorial.org ⭐
A37.27.38.71🇫🇮 Hetzner37.27.0.0/16 HETZNER-DC
PTRstatic.71.38.27.37.clients.your-server.de
SOAns1.first-ns.dedns@hetzner.com 2026-04-29 #5

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=1788316000

Subdomains

mail.linux-tutorial.org

Same first word

linux-tutorial.info
linux-tutorial.eu
linux-tutorial.de
linux-tutorial.org

Previous names

linux-sudamerica.org
linux-sunxi.org
linux-support.org
linux-surfbox.org
linux-sxs.org
linux-sysadmin.org
linux-systeme.org
linux-systems.org
linux-team.org
linux-tech.org
linux-techie.org
linux-thinkpad.org
linux-tin.org
linux-tips.org
linux-to-go.org
linux-tools.org
linux-tr.org
linux-trainer.org
linux-training.org

Next names

linux-uefi.org
linux-unix.org
linux-updates.org
linux-us.org
linux-usb.org
linux-user.org
linux-vax.org
linux-ventoux.org
linux-video.org
linux-vinyl.org
linux-vps.org
linux-vr.org
linux-vs.org
linux-vserver.org
linux-watchdog.org
linux-web.org
linux-webcam.org
linux-wimax.org

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NSns1.first-ns.derobotns2.second-ns.derobotns3.second-ns.comns1.sedoparking.comns2.sedoparking.comMXmail.linux-tutorial.orglocalhostmail.nickstel.comA37.27.38.7172.52.4.11972.52.4.91
●NSns1.first-ns.de2026-08-24 → 2026-09-02 · 3 obs
○ 2018-11-04 23:16:02
● 2026-08-24 10:52:40
● 2026-09-02 03:14:02
○NSns1.sedoparking.com2015-07-13 → 2018-11-04 · 4 obs
● 2015-07-13 04:15:14
● 2018-11-04 23:16:02
○ 2026-08-24 10:52:40
○ 2026-09-02 03:14:02
○NSns2.sedoparking.com2015-07-13 → 2018-11-04 · 4 obs
● 2015-07-13 04:15:14
● 2018-11-04 23:16:02
○ 2026-08-24 10:52:40
○ 2026-09-02 03:14:02
●NSrobotns2.second-ns.de2026-08-24 → 2026-09-02 · 3 obs
○ 2018-11-04 23:16:02
● 2026-08-24 10:52:40
● 2026-09-02 03:14:02
●NSrobotns3.second-ns.com2026-08-24 → 2026-09-02 · 3 obs
○ 2018-11-04 23:16:02
● 2026-08-24 10:52:40
● 2026-09-02 03:14:02
○MXlocalhost2017-02-06 → 2018-11-04 · 5 obs
○ 2016-06-28 00:30:18
● 2017-02-06 17:14:10
● 2018-11-04 23:16:02
○ 2026-08-24 10:52:40
○ 2026-09-02 03:14:02
●MXmail.linux-tutorial.org2026-08-24 → 2026-09-02 · 3 obs
○ 2018-11-04 23:16:02
● 2026-08-24 10:52:40
● 2026-09-02 03:14:02
○MXmail.nickstel.com2015-07-13 → 2016-06-28 · 4 obs
● 2015-07-13 04:15:14
● 2016-06-28 00:30:18
○ 2017-02-06 17:14:10
○ 2026-09-02 03:14:02
●A37.27.38.712026-08-24 → 2026-09-02 · 3 obs
○ 2018-11-04 23:16:02
● 2026-08-24 10:52:40
● 2026-09-02 03:14:02
○A72.52.4.1192018-11-04 → 2018-11-04 · 4 obs
○ 2017-02-06 17:14:10
● 2018-11-04 23:16:02
○ 2026-08-24 10:52:40
○ 2026-09-02 03:14:02
○A72.52.4.912015-07-13 → 2017-02-06 · 4 obs
● 2015-07-13 04:15:14
● 2017-02-06 17:14:10
○ 2018-11-04 23:16:02
○ 2026-09-02 03:14:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org-
linux-tutorial.orgrobotns2.second-ns.de, ns1.first-ns.de, robotns3.second-ns.com-

✅ Authoritative Response

Server:193.47.99.3

NS records: robotns2.second-ns.de, ns1.first-ns.de, robotns3.second-ns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linux-tutorial.org (unsigned zone)

⏱️ Timing

Total: 714ms | Queries: -

📄 Records

TypeCountSample Data
A137.27.38.71
NS3ns1.first-ns.de, robotns2.second-ns.de...
MX1mail.linux-tutorial.org (pri: 10)
SOA1ns1.first-ns.de dns.hetzner.com

Analysis

Hierarchy

The domain mail.linux-tutorial.org falls under the parent linux-tutorial.org.

IP Addresses

linux-tutorial.org directs to one IP number, which is 37.27.38.71.

linux-tutorial.info, jimmo.com, www.jimmo.com and mail.linux-tutorial.org are examples of host names that share IP numbers with linux-tutorial.org.

Name Servers

linux-tutorial.org carries NS records delegating to robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

At least some of linux-tutorial.org's name servers are shared with other domains, for example email-service24.com, gs-dns.de, fssl.de and two more.

robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de are three hostnames that each resolve to a pair of IP addresses: robotns3.second-ns.com to 193.47.99.3 and 2001:67c:192c::add:a3, ns1.first-ns.de to 213.239.242.238 and 2a01:4f8:0:a101::a:1, and robotns2.second-ns.de to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2.

Mail Servers

linux-tutorial.org routes its mail through a single mail server, mail.linux-tutorial.org.

mail.linux-tutorial.org carries a single IP number, which is 37.27.38.71.