system21.com - dns.ninja

`system21.com`

DNSSEC	🔒 Signed (DS record present)
A	207.54.49.106^{🇺🇸 AS13483207.54.48.0/20}
NS	`ns-869.awsdns-44.net` ⭐
		A	2600:9000:5303:6500::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-869.awsdns-44.net`
		A	205.251.195.101^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-869.awsdns-44.net`
NS	`ns-1496.awsdns-59.org`
		A	2600:9000:5305:d800::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1496.awsdns-59.org`
		A	205.251.197.216^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1496.awsdns-59.org`
NS	`ns-1892.awsdns-44.co.uk`
		A	2600:9000:5307:6400::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1892.awsdns-44.co.uk`
		A	205.251.199.100^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1892.awsdns-44.co.uk`
NS	`ns-80.awsdns-10.com`
		A	2600:9000:5300:5000::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-80.awsdns-10.com`
		A	205.251.192.80^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-80.awsdns-10.com`
MX	`mx1.hc3692-74.iphmx.com` ⭐
		A	139.138.35.238^{🇺🇸 CISCO-1139.138.35.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.38.236^{🇺🇸 CISCO-1139.138.38.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.39.133^{🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.39.134^{🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.46.70^{🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.46.149^{🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.46.150^{🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	216.71.145.168^{🇺🇸 CISCO-1216.71.145.0/24 170 West Tasman Drive San Jose CA 95134 United States}
MX	`mx2.hc3692-74.iphmx.com` ⭐
		A	139.138.35.238^{🇺🇸 CISCO-1139.138.35.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.38.236^{🇺🇸 CISCO-1139.138.38.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.39.133^{🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.39.134^{🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.46.70^{🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.46.149^{🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	139.138.46.150^{🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	216.71.145.168^{🇺🇸 CISCO-1216.71.145.0/24 170 West Tasman Drive San Jose CA 95134 United States}
TXT	`MS=ms19551231`
TXT	`v=spf1 exists:%{i}.spf.hc3692-74.iphmx.com include:spf.protection.outlook.com...`
SOA	`ns-869.awsdns-44.net`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785978659

WOT: UNKNOWN (68/100)

PTR for

140.87.131.193.in-addr.arpa

Subdomains

www.system21.com

s21ext.system21.com

Same first word

system21.tv

system21.net

system21.org

system21.de

system21.com

system21.ro

system21.it

system21.us

system21.com.br

system21.co.jp

system21.ne.jp

system21.pt

system21.se

system21.nl

system21.uk.com

Similar names

12system.de

system12.ru

DNS History

15 records (7 active, 8 former)

○NSdns3.infor.com2015-08-08 → 2017-03-31 · 4 obs

● 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

○NSdns4.infor.com2015-08-08 → 2017-03-31 · 4 obs

● 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

○NSdns5.infor.com2015-08-08 → 2017-03-31 · 4 obs

● 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

●NSns-1496.awsdns-59.org2026-02-16 → 2026-08-06 · 3 obs

○ 2017-03-31 14:26:54
● 2026-02-16 02:37:08
● 2026-08-06 01:27:06

●NSns-1892.awsdns-44.co.uk2026-02-16 → 2026-08-06 · 3 obs

○ 2017-03-31 14:26:54
● 2026-02-16 02:37:08
● 2026-08-06 01:27:06

●NSns-80.awsdns-10.com2026-02-16 → 2026-08-06 · 3 obs

○ 2017-03-31 14:26:54
● 2026-02-16 02:37:08
● 2026-08-06 01:27:06

●NSns-869.awsdns-44.net2026-02-16 → 2026-08-06 · 3 obs

○ 2017-03-31 14:26:54
● 2026-02-16 02:37:08
● 2026-08-06 01:27:06

●MXmx1.hc3692-74.iphmx.com2026-02-16 → 2026-08-06 · 3 obs

○ 2017-03-31 14:26:54
● 2026-02-16 02:37:08
● 2026-08-06 01:27:06

●MXmx2.hc3692-74.iphmx.com2026-02-16 → 2026-08-06 · 3 obs

○ 2017-03-31 14:26:54
● 2026-02-16 02:37:08
● 2026-08-06 01:27:06

○MXnlsmtpp1.infor.com2015-08-08 → 2017-03-31 · 4 obs

● 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

○MXnlsmtpp2.infor.com2015-08-08 → 2017-03-31 · 4 obs

● 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

○MXsystem21-com.mail.protection.outlook.com2017-03-31 → 2017-03-31 · 4 obs

○ 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

○MXussmtpp1.infor.com2015-08-08 → 2017-03-31 · 4 obs

● 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

○MXussmtpp2.infor.com2015-08-08 → 2017-03-31 · 4 obs

● 2015-08-08 16:37:22
● 2017-03-31 14:26:54
○ 2026-02-16 02:37:08
○ 2026-08-06 01:27:06

●A207.54.49.1062015-08-08 → 2026-08-06 · 2 obs

● 2015-08-08 16:37:22
● 2026-08-06 01:27:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
system21.com	ns-80.awsdns-10.com, ns-869.awsdns-44.net, ns-1892.awsdns-44.co.uk, ns-1496.awsdns-59.org	2 records

✅ Authoritative Response

Server:205.251.197.216

NS records: ns-80.awsdns-10.com, ns-869.awsdns-44.net, ns-1892.awsdns-44.co.uk, ns-1496.awsdns-59.org

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 512ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.54.49.106`
NS	4	`ns-1496.awsdns-59.org, ns-1892.awsdns-44.co.uk...`
MX	2	`mx1.hc3692-74.iphmx.com (pri: 0), mx2.hc3692-74.iphmx.com (pri: 0)`
TXT	2	`MS=ms19551231, v=spf1 exists:%{i}.spf.hc3692-74.iphmx.c`
SOA	1	`ns-869.awsdns-44.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-80.awsdns-10.com, ns-80.awsdns-10.com)

Analysis

Hierarchy

system21.com serves as the parent of www.system21.com and s21ext.system21.com.

IP Addresses

system21.com has exactly one IP address — 207.54.49.106.

millenniumviewprint.us, aecworld.com, extensitysoftware.com plus two other host names have IP numbers in common with system21.com.

Name Servers

Four name servers handle the delegation for system21.com: ns-80.awsdns-10.com, ns-869.awsdns-44.net, ns-1496.awsdns-59.org and ns-1892.awsdns-44.co.uk.

system21.com partially shares its NS delegation with several other domains, including townandcountrymag.com, 142bets10.com, iporaitech.com and two others.

ns-80.awsdns-10.com, ns-869.awsdns-44.net, ns-1496.awsdns-59.org and ns-1892.awsdns-44.co.uk each carry two IP addresses. ns-80.awsdns-10.com has 205.251.192.80 and 2600:9000:5300:5000::1; ns-869.awsdns-44.net has 205.251.195.101 and 2600:9000:5303:6500::1; ns-1496.awsdns-59.org has 205.251.197.216 and 2600:9000:5305:d800::1; ns-1892.awsdns-44.co.uk has 205.251.199.100 and 2600:9000:5307:6400::1.

Mail Servers

system21.com uses two mail servers, mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com.

The mail server setup of system21.com matches that of other domains such as birst.com, groupelaurier.ca, geac.com.au and two others.

At least a portion of system21.com's mail servers are also used by other domains, for example bi.infor.com.

Hosts with 8 IP addresses each:

Hostname mx1.hc3692-74.iphmx.com directs to 139.138.35.238, 139.138.38.236 and 139.138.39.133 along with 5 other IP addresses.

Hostname mx2.hc3692-74.iphmx.com directs to 139.138.35.238, 139.138.38.236 and 139.138.39.133 along with 5 other IP addresses.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 139.138.35.238 IP addresses each.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 139.138.38.236 IP addresses each.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 139.138.39.133 IP addresses each.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 139.138.39.134 IP addresses each.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 139.138.46.70 IP addresses each.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 139.138.46.149 IP addresses each.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 139.138.46.150 IP addresses each.

Both mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com resolve to 216.71.145.168 IP addresses each.