www.system21.com - dns.ninja

www.system21.com

CNAMEsystem21.com
DNSSEC🔒 Signed (DS record present)
A207.54.49.106🇺🇸 AS13483207.54.48.0/20
NSns-869.awsdns-44.net ⭐
A2600:9000:5303:6500::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront
PTRns-869.awsdns-44.net
A205.251.195.101🇺🇸 Amazon205.251.195.0/24 prefix
PTRns-869.awsdns-44.net
NSns-1496.awsdns-59.org
A2600:9000:5305:d800::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1496.awsdns-59.org
A205.251.197.216🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1496.awsdns-59.org
NSns-1892.awsdns-44.co.uk
A2600:9000:5307:6400::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1892.awsdns-44.co.uk
A205.251.199.100🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1892.awsdns-44.co.uk
NSns-80.awsdns-10.com
A2600:9000:5300:5000::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-80.awsdns-10.com
A205.251.192.80🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-80.awsdns-10.com
MXmx1.hc3692-74.iphmx.com ⭐
A139.138.35.238🇺🇸 CISCO-1139.138.35.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.38.236🇺🇸 CISCO-1139.138.38.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.39.133🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.39.134🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.46.70🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.46.149🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.46.150🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States
A216.71.145.168🇺🇸 CISCO-1216.71.145.0/24 170 West Tasman Drive San Jose CA 95134 United States
MXmx2.hc3692-74.iphmx.com ⭐
A139.138.35.238🇺🇸 CISCO-1139.138.35.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.38.236🇺🇸 CISCO-1139.138.38.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.39.133🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.39.134🇺🇸 CISCO-1139.138.39.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.46.70🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.46.149🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States
A139.138.46.150🇺🇸 CISCO-1139.138.46.0/24 170 West Tasman Drive San Jose CA 95134 United States
A216.71.145.168🇺🇸 CISCO-1216.71.145.0/24 170 West Tasman Drive San Jose CA 95134 United States
TXTMS=ms19551231
TXTv=spf1 exists:%{i}.spf.hc3692-74.iphmx.com include:spf.protection.outlook.com...
SOAns-869.awsdns-44.netawsdns-hostmaster@amazon.com serial=1

system21.com

DNSSEC🔒 Signed (DS record present)
A207.54.49.106🇺🇸 AS13483207.54.48.0/20
NSns-869.awsdns-44.net ⭐
NSns-1496.awsdns-59.org
NSns-1892.awsdns-44.co.uk
NSns-80.awsdns-10.com
MXmx1.hc3692-74.iphmx.com ⭐
MXmx2.hc3692-74.iphmx.com ⭐
TXTMS=ms19551231
TXTv=spf1 exists:%{i}.spf.hc3692-74.iphmx.com include:spf.protection.outlook.com...
SOAns-869.awsdns-44.netawsdns-hostmaster@amazon.com serial=1
WOT: SAFE (68/100)
WOT: UNKNOWN (68/100)

PTR for

140.87.131.193.in-addr.arpa

Same first word

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DNS History

10 records (1 active, 9 former)

20162017201820192020202120222023202420252026NSdns3.infor.comdns4.infor.comdns5.infor.comMXnlsmtpp1.infor.comnlsmtpp2.infor.comsystem21-com.mail.protection.outlook.comussmtpp1.infor.comussmtpp2.infor.comA207.54.49.106CNAMEsystem21.com
○NSdns3.infor.com2015-12-13 → 2017-04-03 · 4 obs
● 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○NSdns4.infor.com2015-12-13 → 2017-04-03 · 4 obs
● 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○NSdns5.infor.com2015-12-13 → 2017-04-03 · 4 obs
● 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○MXnlsmtpp1.infor.com2015-12-13 → 2017-04-03 · 4 obs
● 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○MXnlsmtpp2.infor.com2015-12-13 → 2017-04-03 · 4 obs
● 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○MXsystem21-com.mail.protection.outlook.com2017-04-03 → 2017-04-03 · 4 obs
○ 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○MXussmtpp1.infor.com2015-12-13 → 2017-04-03 · 4 obs
● 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○MXussmtpp2.infor.com2015-12-13 → 2017-04-03 · 4 obs
● 2015-12-13 07:56:22
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
○A207.54.49.1062015-08-23 → 2017-04-03 · 4 obs
● 2015-08-23 15:55:12
● 2017-04-03 00:50:08
○ 2026-02-24 04:51:30
○ 2026-08-06 06:29:30
●CNAMEsystem21.com2015-08-23 → 2026-08-06 · 2 obs
● 2015-08-23 15:55:12
● 2026-08-06 06:29:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net...-
system21.comns-80.awsdns-10.com, ns-869.awsdns-44.net, ns-1892.awsdns-44.co.uk, ns-1496.awsdns-59.org2 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: 526ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1system21.com

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

www.system21.com points to a single IP number: 207.54.49.106.

Additional host names — enterpriseserver.com, smartstream.us, system21.com and two others — share IP numbers with www.system21.com.

Name Servers

www.system21.com has four authoritative name servers: ns-80.awsdns-10.com, ns-869.awsdns-44.net, ns-1496.awsdns-59.org and ns-1892.awsdns-44.co.uk.

www.system21.com has at least partial name server overlap with other domains, such as thescholasticnetwork.com, 4dapt.com, motormexa.com.mx 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 all point to exactly two IP numbers each: ns-80.awsdns-10.com → 205.251.192.80 and 2600:9000:5300:5000::1; ns-869.awsdns-44.net → 205.251.195.101 and 2600:9000:5303:6500::1; ns-1496.awsdns-59.org → 205.251.197.216 and 2600:9000:5305:d800::1; ns-1892.awsdns-44.co.uk → 205.251.199.100 and 2600:9000:5307:6400::1.

Mail Servers

www.system21.com has two mail servers: mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com.

www.system21.com shares the same mail server setup as other domains, including easyrms.co.uk, mapics.com, aperum.com and two others.

The mail servers of www.system21.com are at least partially shared with other domains, including intelligentinsites.com.

Host names with 8 IP numbers:

mx1.hc3692-74.iphmx.com carries IP addresses 139.138.35.238, 139.138.38.236 and 139.138.39.133, with 5 other addresses beyond those.

mx2.hc3692-74.iphmx.com carries IP addresses 139.138.35.238, 139.138.38.236 and 139.138.39.133, with 5 other addresses beyond those.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 139.138.35.238 IP addresses.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 139.138.38.236 IP addresses.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 139.138.39.133 IP addresses.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 139.138.39.134 IP addresses.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 139.138.46.70 IP addresses.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 139.138.46.149 IP addresses.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 139.138.46.150 IP addresses.

These two host names — mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com — each point to 216.71.145.168 IP addresses.