🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`knowledge.systems`

DNSSEC	⚠️ Not signed
A	3.33.130.190^{🇺🇸 Amazon3.33.128.0/20}
		PTR	`a2aa9ff50de748dbe.awsglobalaccelerator.com`
A	15.197.148.33^{🇺🇸 Amazon15.197.144.0/20}
NS	`ns39.domaincontrol.com` ⭐
		A	2603:5:21d1::14^{🇺🇸 GODADDY-DNS2603:5:21d0::/44}
			PTR	`ns39.domaincontrol.com`
		A	97.74.109.20^{🇺🇸 GODADDY-DNS97.74.108.0/23}
			PTR	`ns39.domaincontrol.com`
NS	`ns40.domaincontrol.com`
		A	2603:5:22d1::14^{🇺🇸 GODADDY-DNS2603:5:22d0::/44}
			PTR	`ns40.domaincontrol.com`
		A	173.201.77.20^{🇺🇸 GODADDY-DNS173.201.76.0/23}
			PTR	`ns40.domaincontrol.com`
MX	`smtp.secureserver.net` ⭐
		A	216.69.141.71^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v01.prod.phx3.secureserver.net`
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v01.prod.phx3.secureserver.net`
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v01.prod.phx3.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v02.prod.phx3.secureserver.net`
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v02.prod.phx3.secureserver.net`
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v02.prod.phx3.secureserver.net`
SOA	`ns39.domaincontrol.com`dns@jomax.net 2023-09-19 #0

`systems`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.systems` ⭐
	NS	`v0n1.nic.systems`
	NS	`v0n2.nic.systems`
	NS	`v0n3.nic.systems`
	NS	`v2n0.nic.systems`
	NS	`v2n1.nic.systems`
	SOA	`v0n0.nic.systems`hostmaster@donuts.email serial=1786853603

Same first word

knowledge.ne.jp

knowledge.kr

knowledge.no-ip.org

knowledge.agency

knowledge.cn.com

knowledge.co.th

knowledge.be

knowledge.com

knowledge.org

knowledge.kz

knowledge.ie

knowledge.net

knowledge.com.br

knowledge.tank.jp

knowledge.company

knowledge.pl

knowledge.pk

knowledge.community

knowledge.kitchen

knowledge.business

knowledge.li

knowledge.at

knowledge.la

knowledge.org.ua

knowledge.it

knowledge.gr

knowledge.edu.krd

knowledge.tech

knowledge.ee

knowledge.enterprises

knowledge.tv

knowledge.discount

knowledge.edu.pl

knowledge.city

knowledge.org.tw

knowledge.cz

knowledge.bio

knowledge.life

knowledge.no

knowledge.cards

knowledge.cafe

knowledge.services

knowledge.homes

knowledge.store

knowledge.de.com

knowledge.me

knowledge.capital

knowledge.construction

knowledge.com.pa

knowledge.su

knowledge.ca

knowledge.ru

knowledge.ch

knowledge.io

knowledge.money

knowledge.co.uk

knowledge.systems

knowledge.works

knowledge.gratis

knowledge.productions

knowledge.chat

knowledge.center

knowledge.com.kw

knowledge.network

knowledge.university

knowledge.builders

knowledge.de

knowledge.info

knowledge.academy

knowledge.asia

knowledge.lv

knowledge.com.in

knowledge.wine

knowledge.wiki

knowledge.net.nz

knowledge.or.kr

knowledge.org.uk

Similar names

knolwedge.com

egdelwonk.com

knowlegde.com

kwonglede.com

ledgeknow.com

degenkolw.dk

DNS History

7 records (6 active, 1 former)

●NSns39.domaincontrol.com2016-12-10 → 2026-08-16 · 2 obs

● 2016-12-10 21:40:02
● 2026-08-16 04:36:18

●NSns40.domaincontrol.com2016-12-10 → 2026-08-16 · 2 obs

● 2016-12-10 21:40:02
● 2026-08-16 04:36:18

●MXmailstore1.secureserver.net2016-12-10 → 2026-08-16 · 2 obs

● 2016-12-10 21:40:02
● 2026-08-16 04:36:18

●MXsmtp.secureserver.net2016-12-10 → 2026-08-16 · 2 obs

● 2016-12-10 21:40:02
● 2026-08-16 04:36:18

●A15.197.148.332026-03-15 → 2026-08-16 · 3 obs

○ 2016-12-10 21:40:02
● 2026-03-15 00:25:02
● 2026-08-16 04:36:18

○A184.168.221.542016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 21:40:02
○ 2026-03-15 00:25:02
○ 2026-08-16 04:36:18

●A3.33.130.1902026-03-15 → 2026-08-16 · 3 obs

○ 2016-12-10 21:40:02
● 2026-03-15 00:25:02
● 2026-08-16 04:36:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
systems	v0n0.nic.systems, v0n1.nic.systems, v0n2.nic.systems, v0n3.nic.systems...	12 records
knowledge.systems	ns40.domaincontrol.com, ns39.domaincontrol.com	-

✅ Authoritative Response

Server:97.74.109.20

NS records: ns40.domaincontrol.com, ns39.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledge.systems (unsigned zone)

⏱️ Timing

Total: 323ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`3.33.130.190, 15.197.148.33`
NS	2	`ns39.domaincontrol.com, ns40.domaincontrol.com`
MX	2	`mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0)`
SOA	1	`ns39.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.systems, v0n1.nic.systems, v0n2.nic.systems...)

Analysis

IP Addresses

knowledge.systems has two IP addresses: 3.33.130.190 and 15.197.148.33

sacramentosrealestateagents.com, howtocarnival.com, paulnabti.com and two other host names share IP numbers with knowledge.systems.

Name Servers

knowledge.systems is delegated to two name servers: ns39.domaincontrol.com and ns40.domaincontrol.com.

knowledge.systems uses the same name servers as several other domains — among them idc-group.com, allensvariety.com, jmsbands.com and two more.

ns39.domaincontrol.com and ns40.domaincontrol.com each resolve to two IP addresses: ns39.domaincontrol.com points to 97.74.109.20 and 2603:5:21d1::14, while ns40.domaincontrol.com points to 173.201.77.20 and 2603:5:22d1::14.

Mail Servers

Mail for knowledge.systems is handled by two mail servers — mailstore1.secureserver.net and smtp.secureserver.net.

knowledge.systems uses an identical mail server configuration to several other domains — among them pappulife.com, foodranker.com, leopelletier.com and two more.

knowledge.systems and other domains — anjitvs.in for instance — share at least some mail servers.

mailstore1.secureserver.net points to 216.69.141.78, 216.69.141.114 and 216.69.141.162. smtp.secureserver.net points to 216.69.141.71, 216.69.141.84 and 216.69.141.113. Both hosts resolve to three IP numbers.

knowledge.systems - robtex.com