open-source.org - dns.ninja

open-source.org

DNSSEC⚠️ Not signed
A188.166.194.81🇩🇪 DIGITALOCEAN188.166.192.0/22 DigitalOcean
NSdns2.rebel.com ⭐
A54.200.36.152🇺🇸 Amazon54.200.0.0/15 EC2 PDX prefix
PTRdns2.rebel.com
A54.200.67.125🇺🇸 Amazon54.200.0.0/15 EC2 PDX prefix
PTRdns2.rebel.com
NSdns.rebel.com
A54.236.79.66🇺🇸 Amazon54.236.64.0/18 EC2 IAD prefix
PTRdns.rebel.com
A54.236.227.139🇺🇸 Amazon54.236.128.0/17 EC2 IAD prefix
PTRdns.rebel.com
MXmail.protonmail.ch ⭐
A176.119.200.128🇨🇭 Proton176.119.200.0/24
PTRmail.protonmail.ch
A185.70.42.128🇨🇭 Proton185.70.42.0/24
PTRmail.protonmail.ch
A185.205.70.128🇫🇷 Proton185.205.70.0/24
PTRmail.protonmail.ch
MXmailsec.protonmail.ch(20)
A176.119.200.129🇨🇭 Proton176.119.200.0/24
PTRmailsec.protonmail.ch
A185.70.42.129🇨🇭 Proton185.70.42.0/24
PTRmailsec.protonmail.ch
A185.205.70.129🇫🇷 Proton185.205.70.0/24
PTRmailsec.protonmail.ch
TXTprotonmail-verification=fdb6d614812a8bd689a713b66894fa13da2e1aad
TXTv=spf1 include:_spf.protonmail.ch ~all
TXT1f160e33f47d2dbf8d2c1071e852127ec56c1ed6
SOAdns.rebel.comnoc@rebel.com 2026-07-23 #1

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=1784988724

Same first word

open-source.guru
open-source.nl
open-source.technology
open-source.io
open-source.in
open-source.com
open-source.me
open-source.support
open-source.mobi
open-source.cn
open-source.fr
open-source.co
open-source.org
open-source.solutions
open-source.dk
open-source.eu
open-source.ru
open-source.info
open-source.now.sh
open-source.online
open-source.de
open-source.energy
open-source.co.jp
open-source.us
open-source.guide
open-source.jp
open-source.co.uk
open-source.at
open-source.co.at
open-source.rs
open-source.net

Similar names

open-course.com
source-open.de
open-course.net

DNS History

15 records (5 active, 10 former)

20162017201820192020202120222023202420252026NSdns.rebel.comdns2.rebel.comdns1.registrationtek.comdns2.registrationtek.comdns3.registrationtek.comdns4.registrationtek.comnsp1.registrationtek.comnsp2.registrationtek.comnsp3.registrationtek.comnsp4.registrationtek.comMXmail.protonmail.chmailsec.protonmail.ch85.25.100.163.open-source.orgA188.166.194.8185.25.100.163
●NSdns.rebel.com2026-02-15 → 2026-07-25 · 3 obs
○ 2018-08-16 00:45:54
● 2026-02-15 16:37:06
● 2026-07-25 14:31:52
○NSdns1.registrationtek.com2018-08-16 → 2018-08-16 · 4 obs
○ 2016-05-09 02:19:08
● 2018-08-16 00:45:54
○ 2026-02-15 16:37:06
○ 2026-07-25 14:31:52
●NSdns2.rebel.com2026-02-15 → 2026-07-25 · 3 obs
○ 2018-08-16 00:45:54
● 2026-02-15 16:37:06
● 2026-07-25 14:31:52
○NSdns2.registrationtek.com2018-08-16 → 2018-08-16 · 4 obs
○ 2016-05-09 02:19:08
● 2018-08-16 00:45:54
○ 2026-02-15 16:37:06
○ 2026-07-25 14:31:52
○NSdns3.registrationtek.com2018-08-16 → 2018-08-16 · 4 obs
○ 2016-05-09 02:19:08
● 2018-08-16 00:45:54
○ 2026-02-15 16:37:06
○ 2026-07-25 14:31:52
○NSdns4.registrationtek.com2018-08-16 → 2018-08-16 · 4 obs
○ 2016-05-09 02:19:08
● 2018-08-16 00:45:54
○ 2026-02-15 16:37:06
○ 2026-07-25 14:31:52
○NSnsp1.registrationtek.com2015-08-06 → 2016-05-09 · 4 obs
● 2015-08-06 11:18:52
● 2016-05-09 02:19:08
○ 2018-08-16 00:45:54
○ 2026-07-25 14:31:52
○NSnsp2.registrationtek.com2015-08-06 → 2016-05-09 · 4 obs
● 2015-08-06 11:18:52
● 2016-05-09 02:19:08
○ 2018-08-16 00:45:54
○ 2026-07-25 14:31:52
○NSnsp3.registrationtek.com2015-08-06 → 2016-05-09 · 4 obs
● 2015-08-06 11:18:52
● 2016-05-09 02:19:08
○ 2018-08-16 00:45:54
○ 2026-07-25 14:31:52
○NSnsp4.registrationtek.com2015-08-06 → 2016-05-09 · 4 obs
● 2015-08-06 11:18:52
● 2016-05-09 02:19:08
○ 2018-08-16 00:45:54
○ 2026-07-25 14:31:52
○MX85.25.100.163.open-source.org2015-08-06 → 2018-08-16 · 4 obs
● 2015-08-06 11:18:52
● 2018-08-16 00:45:54
○ 2026-02-15 16:37:06
○ 2026-07-25 14:31:52
●MXmail.protonmail.ch2026-02-15 → 2026-07-25 · 3 obs
○ 2018-08-16 00:45:54
● 2026-02-15 16:37:06
● 2026-07-25 14:31:52
●MXmailsec.protonmail.ch2026-02-15 → 2026-07-25 · 3 obs
○ 2018-08-16 00:45:54
● 2026-02-15 16:37:06
● 2026-07-25 14:31:52
●A188.166.194.812026-02-15 → 2026-07-25 · 3 obs
○ 2018-08-16 00:45:54
● 2026-02-15 16:37:06
● 2026-07-25 14:31:52
○A85.25.100.1632015-08-06 → 2018-08-16 · 4 obs
● 2015-08-06 11:18:52
● 2018-08-16 00:45:54
○ 2026-02-15 16:37:06
○ 2026-07-25 14:31:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
open-source.orgdns.rebel.com, dns2.rebel.com-

✅ Authoritative Response

Server:54.200.36.152

NS records: dns.rebel.com, dns2.rebel.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-source.org (unsigned zone)

⏱️ Timing

Total: 2212ms | Queries: -

📄 Records

TypeCountSample Data
A1188.166.194.81
NS2dns.rebel.com, dns2.rebel.com
MX2mailsec.protonmail.ch (pri: 20), mail.protonmail.ch (pri: 10)
TXT3protonmail-verification=fdb6d614812a8bd6, v=spf1 include:_spf.protonmail.ch ~all...
SOA1dns.rebel.com noc.rebel.com

Analysis

IP Addresses

open-source.org resolves to just one IP address, 188.166.194.81.

Name Servers

Two name servers handle the delegation for open-source.org: dns2.rebel.com and dns.rebel.com.

open-source.org shares its NS records with other domains, for example v-42.com, elitelacrossecamps.com, donvalleyvw.com and two others.

At least some of open-source.org's name servers are shared with other domains, for example hudongauthier.com, ahflooring.ca, russohomerenovations.com and two more.

These name servers tend to be deployed in combination with the name servers dns.rebel.ca and dns2.rebel.ca.

dns2.rebel.com and dns.rebel.com both carry two IP addresses. The A records for dns2.rebel.com are 54.200.36.152 and 54.200.67.125; the A records for dns.rebel.com are 54.236.79.66 and 54.236.227.139.

Mail Servers

open-source.org is served by two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

Among the domains sharing a mail server setup with open-source.org are ruxnet.com, webend.eu, kineticts.com and two others.

There is at least a partial MX overlap between open-source.org and other domains, including rotocol.nl, tleeuwen.nl, wellkids.co.nz and two others.

The hosts mail.protonmail.ch and mailsec.protonmail.ch both resolve to three IP numbers: mail.protonmail.ch to 176.119.200.128, 185.70.42.128 and 185.205.70.128, and mailsec.protonmail.ch to 176.119.200.129, 185.70.42.129 and 185.205.70.129.