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Thegreatcourses.com Summary


Thegreatcourses.com was created 26 years ago. Receives approximately 831,720 unique visitors per month. Server is located in United States, IP address 204.74.99.100.

Website Info


Creation date 1999-01-27
Expiration date 2021-01-27
Registrar Network Solutions, LLC
Name servers
  1. udns1.ultradns.net
  2. udns2.ultradns.net
IP address 204.74.99.100
Server located United States
Host name crs.ultradns.net

Alexa Traffic Ranks


Global Rank 58,518
Delta (90 Days) 13,617
Most Popular In Country United States
Country Rank 19,679

Whois info


Domain Name: THEGREATCOURSES.COM
Registry Domain ID: 3241037_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://networksolutions.com
Updated Date: 2017-11-28T08:26:33Z
Creation Date: 1999-01-27T05:00:00Z
Registrar Registration Expiration Date: 2021-01-27T05:00:00Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Reseller: 
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: 
Registrant Name: The Teaching Company
Registrant Organization: The Teaching Company
Registrant Street: 4840 WESTFIELDS BLVD STE 500
Registrant City: CHANTILLY
Registrant State/Province: VA
Registrant Postal Code: 20151-4219
Registrant Country: US
Registrant Phone: +1.7035027300
Registrant Phone Ext: 
Registrant Fax: +1.9999999999
Registrant Fax Ext: 
Registrant Email: SysMgr@TEACHCO.COM
Registry Admin ID: 
Admin Name: Leonard, Mark
Admin Organization: The Teaching Company
Admin Street: 4840 WESTFIELDS BLVD STE 500 STE 500
Admin City: Chantilly
Admin State/Province: VA
Admin Postal Code: 20151-4220
Admin Country: US
Admin Phone: +1.7035027300
Admin Phone Ext: 
Admin Fax: +1.7033783819
Admin Fax Ext: 
Admin Email: SysMgr@TEACHCO.COM
Registry Tech ID: 
Tech Name: Network Solutions
Tech Organization: Network Solutions
Tech Street: 5335 Gate Pkwy
Tech City: Jacksonville
Tech State/Province: FL
Tech Postal Code: 32256
Tech Country: US
Tech Phone: +1.8666557679
Tech Phone Ext: 
Tech Fax: 
Tech Fax Ext: 
Tech Email: customerservice@networksolutions.com
Name Server: UDNS1.ULTRADNS.NET
Name Server: UDNS2.ULTRADNS.NET
DNSSEC: unsigned
Registrar Abuse Contact Email: abuse@web.com
Registrar Abuse Contact Phone: +1.8003337680
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/

DNS Records


Host Type TTL Data
thegreatcourses.com A 300 ip: 204.74.99.100
thegreatcourses.com MX 86400 pri: 30
target: thegreatcourses-com.mail.protection.outlook.com
thegreatcourses.com MX 86400 pri: 20
target: cluster2a.us.messagelabs.com
thegreatcourses.com MX 86400 pri: 10
target: cluster2.us.messagelabs.com
thegreatcourses.com NS 86400 target: udns1.ultradns.net
thegreatcourses.com NS 86400 target: udns2.ultradns.net
thegreatcourses.com SOA 86400 mname: udns1.ultradns.net
rname: SysMgr.teachco.com
serial: 2013091322
refresh: 10800
retry: 3600
expire: 2592000
minimum-ttl: 86400
thegreatcourses.com TXT 86400 txt: google-site-verification=6emat9Lp9FWQsTYNsKzi0_-3QKeUd_-2Q6tZnsG5Q3s
thegreatcourses.com TXT 86400 txt: MS=ms67145426
thegreatcourses.com TXT 86400 txt: v=spf1 ip4:98.191.169.135 ip4:98.191.169.155 ip4:65.196.97.26 ip4:65.196.97.14 ip4:65.196.97.31 ip4:63.146.114.254 ip4:63.146.114.253 ip4:67.129.116.186 ip4:54.183.48.159 ip4:66.231.88.207 ip4:66.231.89.168 ip4:65.196.97.6 ip4:98.191.169.132 ip4:67.129.116.187 ip4:67.129.116.188 include:spf.messagelabs.com include:spf.protection.outlook.com include:wappmail.com include:amazonses.com -all

HTTP Headers


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Server: nginx/1.10.3
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
P3p: CP="CAO PSA OUR"
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Date: Mon, 23 Nov 2020 12:03:55 GMT
Connection: keep-alive
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x-encoded-content-encoding: gzip
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