WWW.RTSAK.COM - thegreatcourses.com

Search for IP or hostnames:

thegreatcourses.com checked at 2025-10-12T20:06:03.317Z 212ms 167/167/167 100% R:11

`thegreatcourses.com`

NS	`ns-359.awsdns-44.com`
		A	2600:9000:5301:6700::1 ^{🇺🇸 Amazon}
			PTR	`ns-359.awsdns-44.com`
		A	205.251.193.103^{🇺🇸 Amazon}
			PTR	`ns-359.awsdns-44.com`
NS	`ns-546.awsdns-04.net`
		A	2600:9000:5302:2200::1 ^{🇺🇸 Amazon}
			PTR	`ns-546.awsdns-04.net`
		A	205.251.194.34^{🇺🇸 Amazon}
			PTR	`ns-546.awsdns-04.net`
NS	`ns-1093.awsdns-08.org`
		A	2600:9000:5304:4500::1 ^{🇺🇸 Amazon}
			PTR	`ns-1093.awsdns-08.org`
		A	205.251.196.69^{🇺🇸 Amazon}
			PTR	`ns-1093.awsdns-08.org`
MX	`cluster2.us.messagelabs.com`
		A	67.219.246.208^{🇺🇸 Google}
			PTR	`mail907.messagelabs.com`
		A	67.219.246.210^{🇺🇸 Google}
			PTR	`mail909.messagelabs.com`
		A	67.219.247.106^{🇺🇸 Google}
			PTR	`mail923.messagelabs.com`
		A	67.219.247.202^{🇺🇸 Google}
			PTR	`mail930.messagelabs.com`
		A	67.219.247.204^{🇺🇸 Google}
			PTR	`mail931.messagelabs.com`
		A	67.219.250.212^{🇺🇸 Google}
			PTR	`mail943.messagelabs.com`
		A	67.219.250.215^{🇺🇸 Google}
			PTR	`mail948.messagelabs.com`
		A	67.219.250.218^{🇺🇸 Google}
			PTR	`mail951.messagelabs.com`
MX	`cluster2a.us.messagelabs.com`
		A	34.75.172.113^{🇺🇸 Google}
			PTR	`113.172.75.34.bc.googleusercontent.com`
NS	`ns-1953.awsdns-52.co.uk`
		A	2600:9000:5307:a100::1 ^{🇺🇸 Amazon}
			PTR	`ns-1953.awsdns-52.co.uk`
		A	205.251.199.161^{🇺🇸 Amazon}
			PTR	`ns-1953.awsdns-52.co.uk`
MX	`thegreatcourses-com.mail.protection.outlook.com`
		A	2a01:111:f403:c927::1 ^{🇺🇸 Microsoft}
			PTR	`mail-bn8pr05cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::5 ^{🇺🇸 Microsoft}
			PTR	`mail-ch4pr21cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::2 ^{🇺🇸 Microsoft}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:f90c:: ^{🇺🇸 Microsoft}
			PTR	`mail-sn1pr03cu00100.inbound.protection.outlook.com`
		A	52.101.9.5^{🇺🇸 Microsoft}
			PTR	`mail-mn2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.9.12^{🇺🇸 Microsoft}
			PTR	`mail-bl0pr05cu00504.inbound.protection.outlook.com`
		A	52.101.10.8^{🇺🇸 Microsoft}
			PTR	`mail-bn1pr04cu00100.inbound.protection.outlook.com`
		A	52.101.10.12^{🇺🇸 Microsoft}
			PTR	`mail-bn1pr21cu00204.inbound.protection.outlook.com`
A	3.93.98.245^{🇺🇸 Amazon}
		PTR	`ec2-3-93-98-245.compute-1.amazonaws.com`
A	44.197.77.85^{🇺🇸 Amazon}
		PTR	`ec2-44-197-77-85.compute-1.amazonaws.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`

rank #24088 globally
rank #12373 in the tld

Up

lib.thegreatcourses.com

www.thegreatcourses.com

Starts with same word

thegreatcourses.com

thegreatcourses.co.uk

Starts similarily

thegreatcourses.com

thegreatcourses.co.uk

AI analysis

thegreatcourses.com is a parent of lib.thegreatcourses.com and www.thegreatcourses.com.

thegreatcourses.com points to two IP numbers: 3.93.98.245 and 44.197.77.85.

Other host names, for instance ec2-44-197-77-85.compute-1.amazonaws.com, ec2-3-93-98-245.compute-1.amazonaws.com, www.thegreatcourses.co.uk, thegreatcourses.co.uk and www.thegreatcourses.com share IP numbers with thegreatcourses.com.

thegreatcourses.com is delegated to four name servers: ns-359.awsdns-44.com, ns-546.awsdns-04.net, ns-1093.awsdns-08.org and ns-1953.awsdns-52.co.uk.

thegreatcourses.com at least partially shares name servers with other domains, for instance e-postcodeloterij.com, ewallet.com.au, suco777.cc, californiaseismic.com and newcastlegateshead.com.

these name servers are commonly used with ns-948.awsdns-54.net, ns-1934.awsdns-49.co.uk and ns-1307.awsdns-35.org.

Host names with two IP numbers:

ns-359.awsdns-44.com points to: 2600:9000:5301:6700::1 and 205.251.193.103.

ns-546.awsdns-04.net points to: 2600:9000:5302:2200::1 and 205.251.194.34.

ns-1093.awsdns-08.org points to: 2600:9000:5304:4500::1 and 205.251.196.69.

ns-1953.awsdns-52.co.uk points to: 2600:9000:5307:a100::1 and 205.251.199.161.

thegreatcourses.com is handled by three mail servers: cluster2.us.messagelabs.com, cluster2a.us.messagelabs.com and thegreatcourses-com.mail.protection.outlook.com.

thegreatcourses.com shares mail servers with other domains at least in part, for instance catfootwear.ru, sekisuiurethane.co.jp, orchardsoft.com, innovatewithdairy.net and ezinetmail.com.

Host cluster2.us.messagelabs.com points to: 67.219.246.208, 67.219.246.210, 67.219.247.106, 67.219.247.202, 67.219.247.204, 67.219.250.212, 67.219.250.215 and 67.219.250.218.

Host thegreatcourses-com.mail.protection.outlook.com points to: 2a01:111:f403:c927::1, 2a01:111:f403:c946::5, 2a01:111:f403:f902::2, 2a01:111:f403:f90c::, 52.101.9.5, 52.101.9.12, 52.101.10.8 and 52.101.10.12.

Host cluster2a.us.messagelabs.com points to: 34.75.172.113.

dbq