MXLIST.NET - challenge-ei.com

Search for IP or hostnames:

challenge-ei.com checked at 2025-10-18T22:58:08.512Z 147ms 116/116/116 100% R:13

`challenge-ei.com`

NS	`ns1.bdm.microsoftonline.com`
		A	2603:1061:0:700::d0 ^{🇺🇸 Microsoft}
			PTR	`ns1-208.azure-dns.com`
		A	13.107.236.208^{🇺🇸 Microsoft}
			PTR	`ns1-208.azure-dns.com`
NS	`ns2.bdm.microsoftonline.com`
		A	2620:1ec:8ec:700::d0 ^{🇺🇸 Microsoft}
			PTR	`ns2-208.azure-dns.net`
		A	150.171.21.208^{🇺🇸 Microsoft}
			PTR	`ns2-208.azure-dns.net`
NS	`ns3.bdm.microsoftonline.com`
		A	2a01:111:4000:700::d0 ^{🇬🇧 Microsoft}
			PTR	`ns3-208.azure-dns.org`
		A	204.14.183.208^{🇺🇸 Microsoft}
			PTR	`ns3-208.azure-dns.org`
NS	`ns4.bdm.microsoftonline.com`
		A	2620:1ec:bda:700::d0 ^{🇺🇸 Microsoft}
			PTR	`ns4-208.azure-dns.info`
		A	208.84.5.208^{🇺🇸 Microsoft}
			PTR	`ns4-208.azure-dns.info`
MX	`challengeei-com02c.mail.protection.outlook.com`
		A	2a01:111:f403:c946::3 ^{🇺🇸 Microsoft}
			PTR	`mail-ch0pr04cu00603.inbound.protection.outlook.com`
		A	2a01:111:f403:f807:: ^{🇺🇸 Microsoft}
			PTR	`mail-co1pr05cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f908::1 ^{🇺🇸 Microsoft}
			PTR	`mail-bn1pr04cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:f90d:: ^{🇺🇸 Microsoft}
			PTR	`mail-sn1pr0501cu00200.inbound.protection.outlook.com`
		A	52.101.40.0^{🇺🇸 Microsoft}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	52.101.41.24^{🇺🇸 Microsoft}
			PTR	`mail-sj0pr03cu01600.inbound.protection.outlook.com`
		A	52.101.194.13^{🇺🇸 Microsoft}
			PTR	`mail-ch0pr04cu00605.inbound.protection.outlook.com`
		A	52.101.194.19^{🇺🇸 Microsoft}
			PTR	`mail-ch5pr02cu00303.inbound.protection.outlook.com`
A	67.222.37.210^{🇺🇸 Endurance International Group, Inc}
		PTR	`67-222-37-210.unifiedlayer.com`

`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

challenge-ei.com

challenge-ei.net

Starts similarily

henglai-elec.com

challenge-ei.com

challenge-ei.net

AI analysis

challenge-ei.com points to a single IP number: 67.222.37.210.

Other host names, for instance 67-222-37-210.unifiedlayer.com, share IP numbers with challenge-ei.com.

challenge-ei.com is delegated to four name servers: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.

challenge-ei.com at least partially shares name servers with other domains, for instance welfareunithire.co.uk, eds-az.com, satishielding.com, blindworldusa.com and indicainteriors.com.

These name servers are commonly used with ns1.register.it and ns2.register.it.

Host names with two IP numbers:

ns1.bdm.microsoftonline.com points to: 2603:1061:0:700::d0 and 13.107.236.208.

ns2.bdm.microsoftonline.com points to: 2620:1ec:8ec:700::d0 and 150.171.21.208.

ns3.bdm.microsoftonline.com points to: 2a01:111:4000:700::d0 and 204.14.183.208.

ns4.bdm.microsoftonline.com points to: 2620:1ec:bda:700::d0 and 208.84.5.208.

challenge-ei.com is handled by a single mail server, challengeei-com02c.mail.protection.outlook.com.

challengeei-com02c.mail.protection.outlook.com resolves to eight IP addresses: 2a01:111:f403:c946::3, 2a01:111:f403:f807::, 2a01:111:f403:f908::1, 2a01:111:f403:f90d::, 52.101.40.0, 52.101.41.24, 52.101.194.13 and 52.101.194.19.

dbq