WWW.ROBTEX.COM - postmaster.hackerrank.com

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postmaster.hackerrank.com checked at 2025-10-04T02:48:05.811Z 160ms 68/68/68 100% R:8

`postmaster.hackerrank.com`

MX	`mxa.mailgun.org`
		A	34.160.157.95^{🇺🇸 Google}
			PTR	`95.157.160.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org`
		A	34.160.63.108^{🇺🇸 Google}
			PTR	`108.63.160.34.bc.googleusercontent.com`

`hackerrank.com`

	NS	`ns-431.awsdns-53.com`
	MX	`usb-smtp-inbound-1.mimecast.com`
	MX	`usb-smtp-inbound-2.mimecast.com`
	NS	`ns-525.awsdns-01.net`
	NS	`ns-1314.awsdns-36.org`
	NS	`ns-1691.awsdns-19.co.uk`
	A	34.232.131.206^{🇺🇸 Amazon}
	A	44.218.156.13^{🇺🇸 Amazon}
	A	52.203.66.229^{🇺🇸 Amazon}
	A	54.160.102.58^{🇺🇸 Amazon}

rank #5275 globally
rank #2682 in the tld

Up

email.postmaster.hackerrank.com

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AI analysis

The parent of email.postmaster.hackerrank.com is postmaster.hackerrank.com.

postmaster.hackerrank.com is handled by two mail servers: mxa.mailgun.org and mxb.mailgun.org.

The mail server setup for postmaster.hackerrank.com matches that of other domains, for instance pbremail.com, goodthinkinc.com, calam.org, cassian.com and flowersofevil.com.

postmaster.hackerrank.com shares at least partially some mail servers with other domains, including cbjamaica.com, rumahzakat.org, autosms.io, cambridgesem.com and bajatattoo.com.

these mail servers are often used together with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com.

Host names with a single IP:

mxa.mailgun.org points to 34.160.157.95.

mxb.mailgun.org points to 34.160.63.108.

dbq