Thegreatcourses.com The Great Courses

Thegreatcourses.com Overview

th percentile

Optimization 54th percentile

Thegreatcourses.com is a website that provides online courses and lectures for home study and lifelong learning. The website offers a range of college-level courses in CD, DVD, and digital formats. It boasts over 500 expertly produced courses by professors who have been chosen for their ability to teach.

The website has a user-friendly structure that is easy to navigate. The top of the homepage features the website's name and its tagline. The tagline clearly states what the website is all about and what it offers. The main menu bar is located just below the tagline and features four main categories: courses, instructors, subjects, and formats. This menu bar allows users to easily find what they are looking for.

The homepage also features a search bar that users can use to find specific courses or instructors. Below the search bar, there are featured courses and course categories. These sections allow users to easily discover popular courses and browse different subjects.

The website is hosted by ULTRADNS-NeuStar, Inc., which is a reputable hosting company based in the US. The website's top-level domain is .COM, which is a very popular domain extension.

It is safe to say that thegreatcourses.com is a family-friendly website. The courses offered on the website are designed for personal enrichment, and there is no adult or inappropriate content on the website.

According to PageSpeed Insights, the website scores 17th percentile in terms of speed and 54th percentile in terms of optimization. This suggests that the website could benefit from being optimized for speed.

In conclusion, thegreatcourses.com is a well-structured website that provides users with easy access to high-quality online courses and lectures. The website is family-friendly and hosted by a reputable hosting company. While it could benefit from being optimized for speed, the website still offers a great user experience.

Thegreatcourses.com Rank Summary

Global Rank

68,042

Average Load Time

0.65sec

Links In Count

828

Website Value

$175,200

Audience Geography. Where are thegreatcourses.com visitors located?

Country	Visitors
United States US	73.7%
India IN	7%
Canada CA	6.2%
Other	13.1%

Country	Pageviews
United States US	82.5%
India IN	4%
Canada CA	2.4%
Other	11.1%

Country	Rank
United States US	17159
Canada CA	29536
India IN	107803

Where do visitors go on thegreatcourses.com?

Subdomain	Pageviews
thegreatcourses.com	99.89%
other	0.11%

Subdomain	Pageviews per User
thegreatcourses.com	3.7

Subdomain	Reach
thegreatcourses.com	100%

How popular is thegreatcourses.com?

Period	Global Rank	Global Rank Delta
past 3 months	68042	8648
past month	66449	4180
past week	106421	23706

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	80365	5325	67	-5.971%	2.9	10%
30	68117	-17632	84	30%	3.7	60%
7	80634	-15417	73	20%	6	90%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	69887	11003	10	-16.39%
30	73337	13114	10	-16.95%
7	131415	41052	6	-35.77%

Thegreatcourses.com Website Safety

Overview

Last Updated: 12/25/2024

Overall result - thegreatcourses.com is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/21/2024

thegreatcourses.com is safe.

Norton ConnectSafe evaluates thegreatcourses.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/13/2016

thegreatcourses.com is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

thegreatcourses.com is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/22/2021

thegreatcourses.com is safe.

McAfee assesses thegreatcourses.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze thegreatcourses.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

thegreatcourses.com child safety is very good.

The WOT calculates reputation of the thegreatcourses.com. This reputation system receives ratings from users and information from third-party sources, assesses the thegreatcourses.com for safety features and confirms, whether thegreatcourses.com is suitable for children.

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
Domain	Unknown
Issuer Organization	Unknown
Issuer	Unknown
Algorithm	Unknown
Valid form	Unknown
Expiration	Unknown
Signed	No information
Additional Domains

Thegreatcourses.com Rank History

Alexa Rank shows how popular thegreatcourses.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If thegreatcourses.com has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to thegreatcourses.com and pageviews on thegreatcourses.com over the past 3 months.

Thegreatcourses.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 397215

ASN Title: ULTRADNS, US

Last Update: 07/16/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2020, American Registry for Internet Numbers, Ltd.
#

ASNumber: 397213 - 397243
ASName: ULTRADNS
ASHandle: AS397213
RegDate: 2018-12-04
Updated: 2018-12-04
Ref: https://rdap.arin.net/registry/autnum/397213

OrgName: NeuStar, Inc.
OrgId: NEUS
Address: 45980 Center Oak Plaza
Address: Network Operations Center
City: Sterling
StateProv: VA
PostalCode: 20166
Country: US
RegDate: 2001-03-21
Updated: 2018-01-10
Comment: NPAC
Ref: https://rdap.arin.net/registry/entity/NEUS

OrgTechHandle: NETWO336-ARIN
OrgTechName: Network Engineering
OrgTechPhone: +1-866-638-6622
OrgTechEmail: wan.engineering@neustar.biz
OrgTechRef: https://rdap.arin.net/registry/entity/NETWO336-ARIN

OrgAbuseHandle: NETWO336-ARIN
OrgAbuseName: Network Engineering
OrgAbusePhone: +1-866-638-6622
OrgAbuseEmail: wan.engineering@neustar.biz
OrgAbuseRef: https://rdap.arin.net/registry/entity/NETWO336-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2020, American Registry for Internet Numbers, Ltd.
#

Thegreatcourses.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: THEGREATCOURSES.COM
Registry Domain ID: 3241037_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://networksolutions.com
Updated Date: 2023-12-01T07:56:42Z
Creation Date: 1999-01-27T05:00:00Z
Registry Expiry Date: 2027-01-27T05:00:00Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: domain.operations@web.com
Registrar Abuse Contact Phone: +1.8777228662
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: UDNS1.ULTRADNS.NET
Name Server: UDNS2.ULTRADNS.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-10T22:33:09Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
thegreatcourses.com	204.74.99.100	300

Host	MX Record	Priority	TTL
thegreatcourses.com	thegreatcourses-com.mail.protection.outlook.com	500	360
thegreatcourses.com	cluster2a.us.messagelabs.com	20	360
thegreatcourses.com	cluster2.us.messagelabs.com	10	360

Host	NS Record	TTL
thegreatcourses.com	udns2.ultradns.net	86400
thegreatcourses.com	udns1.ultradns.net	86400

Host	TXT Record	TTL
thegreatcourses.com	google-site-verification=6emat9Lp9FWQsTYNsKzi0_-3QKeUd_-2Q6tZnsG5Q3s	86400
thegreatcourses.com	knowbe4-site-verification=ce192979eb3499047886e1cee057f0cb	86400
thegreatcourses.com	MS=ms67145426	86400
thegreatcourses.com	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 ip4:67.129.11	86400

udns1.ultradns.net
TTL: 86400
Email address: SysMgr.teachco.com
Serial: 2013091430
Refresh: 10800
Retry: 3600
Expire: 2592000
Minimum: 86400

Thegreatcourses.com HTML Check

HTML Validation Tool

Errors

Obsolete doctype. Expected “<!DOCTYPE html>”.

Attribute “name” not allowed on element “link” at this point.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

No “li” element in scope but a “li” end tag seen.

Bad value “” for attribute “name” on element “input”: Must not be empty.

Bad value “” for attribute “action” on element “form”: Must be non-empty.

Attribute “href” not allowed on element “span” at this point.

Duplicate attribute “class”.

Duplicate ID “keep_logged”.

Attribute “alt” not allowed on element “input” at this point.

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Bad value “” for attribute “src” on element “img”: Must be non-empty.

Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

Character reference was not terminated by a semicolon.

Attribute “a” not allowed on element “a” at this point.

The “align” attribute on the “div” element is obsolete. Use CSS instead.

End tag “br”.

Duplicate ID “existing-email-text”.

Stray end tag “div”.

Element “img” is missing required attribute “src”.

The “for” attribute of the “label” element must refer to a non-hidden form control.

The “itemprop” attribute was specified, but the element is not a property of any item.

Warnings

The first occurrence of ID “keep_logged” was here.

The first occurrence of ID “existing-email-text” was here.

Thegreatcourses.com Desktop Performance

Last tested: 08/04/2016

Desktop Speed

60%

Optimize images

Enable compression

Minify JavaScript

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Reduce server response time

Minify CSS

Minify HTML

Desktop Resource Breakdown

Total Resources	182
Number of Hosts	21
Static Resources	162
JavaScript Resources	64
CSS Resources	12

Thegreatcourses.com Mobile Insights

Last tested: 12/06/2019

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

17%

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Enable compression

Optimize images

Minify JavaScript

Avoid landing page redirects

Reduce server response time

Minify CSS

Minify HTML

Mobile Resource Breakdown

Total Resources	226
Number of Hosts	46
Static Resources	147
JavaScript Resources	46
CSS Resources	4

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Thegreatcourses.com The Great Courses

Thegreatcourses.com Overview

Thegreatcourses.com Rank Summary

Thegreatcourses.com Website Safety

Thegreatcourses.com Rank History

Thegreatcourses.com Hosting Information

Thegreatcourses.com Domain Registration and Settings

Thegreatcourses.com HTML Check

Thegreatcourses.com Desktop Performance

Thegreatcourses.com Mobile Insights

Thegreatcourses.com Similar Audits

Thegreatcourses.com Common Typos