WWW.RTSAK.COM - system21.com
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system21.com checked at 2025-10-17T14:04:51.604Z 211ms 159/159/159 100% R:14system21.com
| NS | ns-80.awsdns-10.com | ||||||
| A | 2600:9000:5300:5000::1 🇺🇸 Amazon | ||||||
| PTR | ns-80.awsdns-10.com | ||||||
| A | 205.251.192.80🇺🇸 Amazon | ||||||
| PTR | ns-80.awsdns-10.com | ||||||
| NS | ns-869.awsdns-44.net | ||||||
| A | 2600:9000:5303:6500::1 🇺🇸 Amazon | ||||||
| PTR | ns-869.awsdns-44.net | ||||||
| A | 205.251.195.101🇺🇸 Amazon | ||||||
| PTR | ns-869.awsdns-44.net | ||||||
| NS | ns-1496.awsdns-59.org | ||||||
| A | 2600:9000:5305:d800::1 🇺🇸 Amazon | ||||||
| PTR | ns-1496.awsdns-59.org | ||||||
| A | 205.251.197.216🇺🇸 Amazon | ||||||
| PTR | ns-1496.awsdns-59.org | ||||||
| MX | mx1.hc3692-74.iphmx.com | ||||||
| A | 139.138.35.238🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.38.236🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.39.133🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.39.134🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.46.70🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.46.149🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.46.150🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 216.71.145.168🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| MX | mx2.hc3692-74.iphmx.com | ||||||
| A | 139.138.35.238🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.38.236🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.39.133🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.39.134🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.46.70🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.46.149🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 139.138.46.150🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| A | 216.71.145.168🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort | ||||||
| NS | ns-1892.awsdns-44.co.uk | ||||||
| A | 2600:9000:5307:6400::1 🇺🇸 Amazon | ||||||
| PTR | ns-1892.awsdns-44.co.uk | ||||||
| A | 205.251.199.100🇺🇸 Amazon | ||||||
| PTR | ns-1892.awsdns-44.co.uk | ||||||
| A | 207.54.49.106🇺🇸 AS13483 | ||||||
com
Up
s21ext.system21.com |
Starts with same word
system21.tv |
system21.net |
system21.org |
system21.de |
system21.com |
system21.ro |
system21.com.de |
system21.it |
system21.com.br |
system21.co.jp |
system21.pt |
system21.se |
system21.nl |
system21.uk.com |
Starts similarily
AI analysis
system21.com is the parent of s21ext.system21.com.
system21.com resolves to a single IP: 207.54.49.106.
Other host names, for instance millenniumviewprint.us, aecworld.com, smartpath.us, action-agent.com and smartseries.us share IP numbers with system21.com.
system21.com is delegated to four name servers: ns-80.awsdns-10.com, ns-869.awsdns-44.net, ns-1496.awsdns-59.org and ns-1892.awsdns-44.co.uk.
system21.com shares some name servers with other domains, for example townandcountrymag.com, 142bets10.com, labs.bka.sh, englishtown.asia and d30m1bqc2zdjjp.cloudfront.net.
These name servers are commonly used with the name servers ns-1446.awsdns-52.org, ns-347.awsdns-43.com, ns-521.awsdns-01.net, ns-1811.awsdns-34.co.uk, ns-678.awsdns-20.net and ns-376.awsdns-47.com.
Host names with two IP numbers
Two IPs per host:
ns-80.awsdns-10.com points to 2600:9000:5300:5000::1 and 205.251.192.80
ns-869.awsdns-44.net points to 2600:9000:5303:6500::1 and 205.251.195.101
ns-1496.awsdns-59.org points to 2600:9000:5305:d800::1 and 205.251.197.216
ns-1892.awsdns-44.co.uk points to 2600:9000:5307:6400::1 and 205.251.199.100
system21.com is served by two mail servers: mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com.
system21.com shares the mail server setup with other domains, for example birst.com, groupelaurier.ca, geac.com.au, lawson.com and baan.com.
system21.com shares at least some mail servers with other domains, for example bi.infor.com.
Host names with eight IP numbers:
The host names mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com point to: 139.138.35.238, 139.138.38.236, 139.138.39.133, 139.138.39.134, 139.138.46.70, 139.138.46.149, 139.138.46.150 and 216.71.145.168.
For each of these IPs, the host names that point to it are mx1.hc3692-74.iphmx.com and mx2.hc3692-74.iphmx.com.