WWW.ROBTEX.COM - challengeu.ca

Search for IP or hostnames:

challengeu.ca checked at 2025-10-04T13:08:37.801Z 621ms 266/266/266 100% R:12

`challengeu.ca`

NS	`ns-338.awsdns-42.com`
		A	2600:9000:5301:5200::1^{🇺🇸 Amazon}
			PTR	`ns-338.awsdns-42.com`
		A	205.251.193.82^{🇺🇸 Amazon}
			PTR	`ns-338.awsdns-42.com`
MX	`aspmx2.googlemail.com`
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`
		A	2a00:1450:400c:c00::1a^{🇧🇪 Google}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.26^{🇺🇸 Google}
			PTR	`ws-in-f26.1e100.net`
NS	`ns-728.awsdns-27.net`
		A	2600:9000:5302:d800::1^{🇺🇸 Amazon}
			PTR	`ns-728.awsdns-27.net`
		A	205.251.194.216^{🇺🇸 Amazon}
			PTR	`ns-728.awsdns-27.net`
NS	`ns-1384.awsdns-45.org`
		A	2600:9000:5305:6800::1^{🇺🇸 Amazon}
			PTR	`ns-1384.awsdns-45.org`
		A	205.251.197.104^{🇺🇸 Amazon}
			PTR	`ns-1384.awsdns-45.org`
MX	`aspmx.l.google.com`
		A	2607:f8b0:4004:c25::1b^{🇺🇸 Google}
			PTR	`yuiadtq-in-f27.1e100.net`
		A	142.251.167.26^{🇺🇸 Google}
			PTR	`ww-in-f26.1e100.net`
NS	`ns-1865.awsdns-41.co.uk`
		A	2600:9000:5307:4900::1^{🇺🇸 Amazon}
			PTR	`ns-1865.awsdns-41.co.uk`
		A	205.251.199.73^{🇺🇸 Amazon}
			PTR	`ns-1865.awsdns-41.co.uk`
MX	`alt1.aspmx.l.google.com`
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google}
			PTR	`dj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`
		A	2a00:1450:400c:c00::1b^{🇧🇪 Google}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.1e100.net`
		A	173.194.76.27^{🇺🇸 Google}
			PTR	`ws-in-f27.1e100.net`
A	3.167.88.11^{🇺🇸 Amazon}
		PTR	`server-3-167-88-11.iad55.r.cloudfront.net`
A	3.167.88.81^{🇺🇸 Amazon}
		PTR	`server-3-167-88-81.iad55.r.cloudfront.net`
A	3.167.88.120^{🇺🇸 Amazon}
		PTR	`server-3-167-88-120.iad55.r.cloudfront.net`
A	3.167.88.126^{🇺🇸 Amazon}
		PTR	`server-3-167-88-126.iad55.r.cloudfront.net`

`ca`

	NS	`any.ca-servers.ca`
	NS	`c.ca-servers.ca`
	NS	`d.ca-servers.ca`
	NS	`j.ca-servers.ca`

Up

rf.challengeu.ca

Starts with same word

challengeu.ca

challengeu.com

Starts similarily

challengeu.ca

challengeu.com

AI analysis

challengeu.ca is a parent of rf.challengeu.ca.

challengeu.ca resolves to four IPs: 3.167.88.11, 3.167.88.81, 3.167.88.120 and 3.167.88.126.

Other host names such as www.studentbeans.com, naruto.viz.com, kazu6800.com, www.instasex.es and brandsafe.io share IP numbers with challengeu.ca.

challengeu.ca is delegated to four name servers: ns-338.awsdns-42.com, ns-728.awsdns-27.net, ns-1384.awsdns-45.org and ns-1865.awsdns-41.co.uk.

At least part of the name servers for challengeu.ca are shared with other domains, for instance daysneo.com, d308nmerd6ymc7.cloudfront.net, cetrez.me, truework.com and adamrabbani.com.

These name servers are often used together with the name servers ns-405.awsdns-50.com, ns-756.awsdns-30.net, ns-1533.awsdns-63.org, ns-1059.awsdns-04.org, ns-499.awsdns-62.com, ns-1050.awsdns-03.org and ns-1739.awsdns-25.co.uk.

Host names with two IP numbers:

ns-338.awsdns-42.com points to: 2600:9000:5301:5200::1 and 205.251.193.82

ns-728.awsdns-27.net points to: 2600:9000:5302:d800::1 and 205.251.194.216

ns-1384.awsdns-45.org points to: 2600:9000:5305:6800::1 and 205.251.197.104

ns-1865.awsdns-41.co.uk points to: 2600:9000:5307:4900::1 and 205.251.199.73

challengeu.ca is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

challengeu.ca shares at least some mail servers with other domains, for example brgrp.com, hourislam.com, britspit.com, swmlife.com and rondonia.com.br.

These mail servers are commonly used alongside aspmx4.googlemail.com, aspmx5.googlemail.com, alt4.aspmx.l.google.com and alt3.aspmx.l.google.com.

Host names with two IP numbers: aspmx2.googlemail.com points to 2a00:1450:400b:c02::1a and 172.253.116.26; aspmx3.googlemail.com points to 2a00:1450:400c:c00::1a and 173.194.76.26; aspmx.l.google.com points to 2607:f8b0:4004:c25::1b and 142.251.167.26; alt1.aspmx.l.google.com points to 2a00:1450:400b:c02::1b and 172.253.116.27; alt2.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.27.

dbq