ROBTEX.COM - 21b.net

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21b.net checked at 2025-12-11T04:18:00.474Z 317ms 86/86/86 100% R:11 allDone:true timedOut:false

`21b.net`

MX	`mx00.1and1.com`
		A	74.208.5.3^{🇺🇸 IONOS-AS}
			PTR	`mx00.perfora.net`
MX	`mx01.1and1.com`
		A	74.208.5.21^{🇺🇸 IONOS-AS}
			PTR	`mx01.perfora.net`
NS	`ns-cloud-d1.googledomains.com`
		A	2001:4860:4802:32::6d^{🇺🇸 Google}
			PTR	`ns-cloud-d1.googledomains.com`
		A	216.239.32.109^{🇺🇸 Google}
			PTR	`ns-cloud-d1.googledomains.com`
NS	`ns-cloud-d2.googledomains.com`
		A	2001:4860:4802:34::6d^{🇺🇸 Google}
			PTR	`ns-cloud-d2.googledomains.com`
		A	216.239.34.109^{🇺🇸 Google}
			PTR	`ns-cloud-d2.googledomains.com`
NS	`ns-cloud-d3.googledomains.com`
		A	2001:4860:4802:36::6d^{🇺🇸 Google}
			PTR	`ns-cloud-d3.googledomains.com`
		A	216.239.36.109^{🇺🇸 Google}
			PTR	`ns-cloud-d3.googledomains.com`
NS	`ns-cloud-d4.googledomains.com`
		A	2001:4860:4802:38::6d^{🇺🇸 Google}
			PTR	`ns-cloud-d4.googledomains.com`
		A	216.239.38.109^{🇺🇸 Google}
			PTR	`ns-cloud-d4.googledomains.com`

`net`

	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

21b.co.nz

21b.net

21b.cc

21b.cn

21b.de

21b.us

21b.org

Starts similarily

12b.ru

b12.com

2b1.org

b12.de

2b1.co.kr

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AI analysis

21b.net is delegated to four name servers: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and ns-cloud-d4.googledomains.com.

21b.net at least partially shares name servers with other domains, for example revenut.com, wet-areas.com, schmartmann.com, pack580.com and grupopekes.com.

Host names with two IP numbers:

ns-cloud-d1.googledomains.com points to: 2001:4860:4802:32::6d and 216.239.32.109

ns-cloud-d2.googledomains.com points to: 2001:4860:4802:34::6d and 216.239.34.109

ns-cloud-d3.googledomains.com points to: 2001:4860:4802:36::6d and 216.239.36.109

ns-cloud-d4.googledomains.com points to: 2001:4860:4802:38::6d and 216.239.38.109

Two mail servers handle 21b.net: mx00.1and1.com and mx01.1and1.com.

21b.net shares the same mail server setup as other domains, including gowinlab.com, s196446568.onlinehome.us, canned-responses.com, seahorse.net and server.dietzsurvey.com.

21b.net shares at least partially some mail servers with other domains, for instance s16963290.onlinehome-server.com, ramsays.us, mail.mbsvm.com, mortgagerealty.us and u24662271.onlinehome-server.com.

Host names with one IP number:

mx00.1and1.com points to 74.208.5.3; mx01.1and1.com points to 74.208.5.21.