challengelearning.com - robtex.com

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challengelearning.com checked at 2026-01-17T00:50:21.177Z 1934ms 83/83/83 100% R:14 allDone:true timedOut:false cfaller:94e95e90/14:4b81199b:6:21445:-:-:-

`challengelearning.com`

NS	`docks14.rzone.de`
		A	2001:8d8:fe:53:5747:2a74:d:14^{🇩🇪 IONOS-AS}
			PTR	`docks14.rzone.de`
		A	217.160.80.141^{🇩🇪 IONOS-AS}
			PTR	`docks14.rzone.de`
NS	`shades13.rzone.de`
		A	2607:f1c0:fe:53:185:132:34:140^{🇺🇸 IONOS-ANYCAST}
			PTR	`shades13.rzone.de`
		A	185.132.34.140^{🇩🇪 IONOS-ANYCAST}
			PTR	`shades13.rzone.de`
MX	`smtpin.rzone.de`
		A	2a01:238:20a:202:50f0::1097^{🇩🇪 STRATO}
			PTR	`smtpin.rzone.de`
		A	81.169.145.97^{🇩🇪 STRATO}
			PTR	`smtpin.rzone.de`
A	2a01:238:20a:202:1169::^{🇩🇪 STRATO}
		PTR	`wa9.rzone.de`
A	81.169.145.169^{🇩🇪 STRATO}
		PTR	`wa9.rzone.de`

`com`

	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`

Starts with same word

challengelearning.nl

challengelearning.com

challengelearning.org

Starts similarily

challengelearning.nl

challengelearning.com

challengelearning.org

AI analysis

Two IP numbers are pointed to by challengelearning.com: 2a01:238:20a:202:1169:: and 81.169.145.169.

other host names include autohaus-moeller.de, gesundhaus.net, stor-ag.de, turkcast.eu and ahvgmbh.de; they share IP numbers with challengelearning.com.

Two name servers docks14.rzone.de and shades13.rzone.de handle the delegation for challengelearning.com.

challengelearning.com shares the same name server setup as other domains, for instance stuip.nl, salevant.eu, promuc.net, rcsf.de and tomnoise.de.

challengelearning.com at least partially shares name servers with other domains, for instance bf-remagen.de, national-parks.de, screen-force.com, e3r.de and ask-bid.de.

these name servers are commonly used with shades05.rzone.de, docks02.rzone.de, shades07.rzone.de, shades03.rzone.de, shades16.rzone.de, docks08.rzone.de, docks12.rzone.de, docks10.rzone.de, shades02.rzone.de and docks07.rzone.de.

Host names with two IP numbers:

docks14.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:14 and 217.160.80.141.

shades13.rzone.de points to 2607:f1c0:fe:53:185:132:34:140 and 185.132.34.140.

challengelearning.com is handled by a single mail server, smtpin.rzone.de.

challengelearning.com uses the same mail server setup as other domains, for instance grohe-online.de, eleusis.de, germanconstruct.eu, mail.ba-motors.de and krassmann.com.

smtpin.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.