classcentral.com | Website SEO Review

Response time

1.40 s

File size

813.00 kB

Words

826

Media files

59

Number of links

195 internal / 10 external

Meta specifications 100% achieved

Title

(Critically important)

Class Central • Find the best courses, wherever they exist.

The length of the page title is perfect. (524 pixels out of 580 max pixel length)

There are no duplicate words in the title

Meta Title

Meta description

(Critically important)

Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.

The length of the meta description is perfect. (814 pixels out of 1000 max pixel length)

Meta Description

Crawlability

(Critically important)

There are no problems in accessing the website.

Search Engine Crawlers

Canonical URL

(Important)

https://www.classcentral.com/

There is a valid canonical link specified.

Canonical Tag

Language

(Somewhat important)

Language detected in text: en

Language defined in HTML: en

Server location: United States of America

The following language is defined by HTML: en

Declaring language in HTML

Alternate/Hreflang Links

(Somewhat important)

There are no alternate links specified on this page.

Hreflang

Other meta tags

(Somewhat important)

There is no rel next meta tag on this page.

There is no rel prev meta tag on this page.

Meta Tags

Domain

(Somewhat important)

The domain is no subdomain.

The domain length is good.

The domain does not contain non-latin characters.

Domain for SEO

Page URL

(Somewhat important)

No parameters were found in the URL.

No session ID was found in the URL.

The URL does not have too many subdirectories.

SEO-friendly URLs

Charset encoding

(Somewhat important)

The charset encoding (UTF-8) is set correctly.

Character Encoding

Doctype

(Nice to have)

The doctype HTML 5 is set correctly.

The doctype is placed at first in the HTML code.

HTML Doctype

Favicon

(Nice to have)

The favicon is linked correctly.

Favicon

Meta tags

Name	Value
viewport	width=device-width, initial-scale=1.0
google-signin-client_id	543074773853-5o4th7sqent0dc5f0slvn0cakr152fpv.apps.googleusercontent.com
application-name	Class Central
description	Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.
msapplication-TileColor	#0A2540
theme-color	#0A2540
lang	en
twitter:card	summary_large_image
twitter:site	@classcentral
twitter:url	https://www.classcentral.com
twitter:title	Class Central • Find the best courses, wherever they exist.
twitter:description	Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.
twitter:image	https://ccweb.imgix.net/https%3A%2F%2Fwww.classcentral.com%2Fimages%2Fmeta%2Fmeta-default.png?auto=format&ixlib=php-4.1.0&s=a980b3b7b5c83a15eac6da49bbbbc182
fb:app_id	214375822097453
og:url	https://www.classcentral.com
og:type	website
og:title	Class Central • Find the best courses, wherever they exist.
og:image	https://ccweb.imgix.net/https%3A%2F%2Fwww.classcentral.com%2Fimages%2Fmeta%2Fmeta-default.png?auto=format&ixlib=php-4.1.0&s=a980b3b7b5c83a15eac6da49bbbbc182
og:description	Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.
og:site_name	Class Central
charset	utf-8

Page quality 55% achieved

Content

(Critically important)

Only 2 paragraph/s was/were found on this page.

This page contains 826 words. That's ok.

23% of the text are stop words.

Keywords used in the page title are also used in the page content. That's good!

The page contains a listing, which indicates a good text layout.

No placeholders texts or images were found.

There are no duplicates on the site.

The average number of words per sentence of 13.33 words is good.

Content is King

Frames

(Critically important)

This page does not use a frameset.

Frames and framesets

Mobile optimization

(Somewhat important)

The file size of the HTML document is very large (813 kB).

A viewport "width=device-width, initial-scale=1.0" is provided.

At least one Apple touch icon is specified.

Mobile Optimization

Bold and strong tags

(Somewhat important)

The amount of tags is very high (45). We recommend using a maximum of 17 tags for this page.

The following tag is repeated too often: elham nazif

Strong and Bold Tags

Image SEO

(Somewhat important)

21 images have no alt attribute. The content of alt attributes is used by search engines.

Image SEO

This page is optimized perfectly for social networks.

Social Sharing

Additional markup

(Nice to have)

No additional page markup was found.

HTTPS

(Somewhat important)

This website uses HTTPS to protect privacy and integrity of the exchanged data.

All included files are also transferred via HTTPS.

HTTPS

Media list

URL	Alt attribute	Title
...4.1.0&s=30584461201f328ef70a92c6ecfe3860	No alt attribute provided
...w=100&s=d64b43c1b6dcf041e56fce6ac1794fcf	No alt attribute provided
...px=16&s=9b6dec5efd70324583a4e8e85534dbbe	Our mascot enjoying summer with sun, cool drinks, and fun outdoor activities.
...px=16&s=aeaa46408d551c69801bac8b87f4be81	No alt attribute provided
...px=16&s=03ae2ca380c71ea435a714ef92738626	No alt attribute provided
...px=16&s=acc0ac9944d654b7d415d4b72664a2c5	No alt attribute provided
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...px=16&s=17362979a1fb16c1ad4bedca85cb7b65	No alt attribute provided
...px=16&s=2da0e228459ca112cdee0e469349c662	No alt attribute provided
...px=16&s=cd6a3e6e6fde66d671c3240d883389f2	No alt attribute provided
...px=16&s=bc6bc3ae50ffbd955cbd5a3b2dc5c61a	No alt attribute provided
...px=16&s=ea1eab7cc2889364dd633e49e0faa157	No alt attribute provided
...px=16&s=4f7ea5e0021b9d6d9c8ba011d9eff378	No alt attribute provided
...px=16&s=195b20b606edc6af8306e236409dfa5c	No alt attribute provided
...px=16&s=4fb01c15bdd58fa4fe13ea5653375703	No alt attribute provided
...px=16&s=b453884d83c5f4de8ebae9111f4ba5da	No alt attribute provided
...px=16&s=dfe06d1c8255b6f4f351aca5a2a02f4a	Never stop learning.
...&w=50&s=41e80e85cba82e610d44e34c7fe9a295	Harvard University Logo
...&w=50&s=591e7b52684e66a798883fe4afe456b8	Stanford University Logo
...&w=50&s=c7df17bdb2f25b9f5c414c5b0c2d91f5	IIT Kharagpur Logo
...&w=50&s=1abc9779ba01ca773236e5cbe61a16ff	MIT Logo
...&w=50&s=7fd64fba08d99c2c4c5488764971979c	Rice University Logo
...&w=50&s=ab30e1abbf7552512763bdac3d75ccdc	IIT Madras Logo
...&w=50&s=efb3648cab7ef25c3b559e790ff82e2d	Columbia University Logo
...&w=50&s=44a78c59bd5c580ad4af6432a75f5365	Cornell University Logo
...&w=50&s=b876770e5ad85dbdba8c6160445720ab	U. of Edinburgh Logo
...&w=50&s=578bfa1486491d1161e53546b65bd3ac	Purdue University Logo
...&w=50&s=995ee1e34cbd30c3b1d490f6008e7356	U. of Pennsylvania Logo
...&w=50&s=485902b4df42d9ef3f2ceda0a1383227	Duke University Logo
...&w=50&s=2040c8cc7868c0c74fac362a73164de1	U. of Michigan Logo
...&w=50&s=52b6ef849c01c0ca7439f49a06315550	The Open University Logo
...&w=50&s=2f859196d93e62e8b9d196967814db4c	Coursera Logo
...&w=50&s=5a4c3582b9edf0c33442c632cf1c1a4e	edX Logo
...&w=50&s=1b612bcce30cb324ee1858bb7fdd8fe3	FutureLearn Logo
...&w=50&s=2a01cbb8a3e0fc291e2fd6e14e1f9b63	Udemy Logo
...&w=50&s=df9dc4cf7a7dab98c16be6cb3d4a1a67	LinkedIn Learning Logo
...&w=50&s=3cae218ee9f5cb85adf8734e57001ba5	Noble Desktop Logo
...&w=50&s=224951c63cb2e539eadd84f2ac5c53c2	Skillshare Logo
...&w=50&s=8be249f157188b0693a4e26183252cd7	Google Logo
...&w=50&s=624fe852d0baec6f68df31323bfd5800	Amazon Logo
...&w=50&s=abe30ed8cb86f9596c6c81a02f438498	Microsoft Logo
...&w=50&s=3007364208afc7d35944b4b998264330	IBM Logo
...&w=50&s=ba753bf6bb7f4d44a2c68885d765de7b	Smithsonian Logo
...&w=50&s=d8b4e2cc8cef9e91a78385fb682c7186	United Nations Logo
...&w=50&s=c97fa5af22682938f67b7bc3c7b2e86a	NPTEL Logo
...px=16&s=8dc4cc97dd9607fb3ef19033682bf5c9	Best Online Courses of All Time
...px=16&s=14e2ac99124442d0436f656020bc0ffa	Class Central’s Most Popular Courses of the Year (2025 Edition)
...w=375&s=f8d4ecc41d97713ba4666d3e88faf6b3	No alt attribute provided
...w=300&s=0e6a139ba814cbcebb1bee0c7e727917	No alt attribute provided
...w=300&s=8019977a413e998a0ba46b2421a5653f	No alt attribute provided
...w=300&s=ca140e2c999e69d5670d754d65466909	No alt attribute provided
...w=300&s=6b369ca68dc0a14e2dcde493de72742a	No alt attribute provided
...w=300&s=64ac691e1b3424d47fef1a94027dea7f	No alt attribute provided
...w=450&s=920e994eebb782ba797794665403ea33	250 Top Udemy Courses of All Time
...w=450&s=cea0ff509e5411213777af46c6b47f0a	2000+ UGC Approved Online Degrees from India’s Top Universities
...w=450&s=d12ed13987aa195b0407e92ef9da18b2	70+ Legit Master’s Degrees You Can Now Earn Completely Online
...w=450&s=ce97b8ff48513a1eed6add3eaef27d47	Massive List of MOOC-based Microcredentials
...w=450&s=5821de0064c7be8f623214667bf0d73d	Free Online Ivy League Courses
...w=450&s=3c54a321eea419e7602919ee699d4d3c	The 100 Most Popular Online Courses of All Time

Page structure 71% achieved

H1 heading

(Critically important)

There is no H1 heading specified.

H1-H6 headings

Headings

(Important)

The structure of headings is missing one or more levels. Do not skip heading levels.

There are 29 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

H1-H6 headings

Heading structure

Heading level	Content
H2	Find your next course.
H2	Find the best courses, wherever they exist
H2	Rankings
H2	As seen in
H2	Get the most out of Class Central with a free account
H2	Get the latest news and analysis in online education.
H2	7 Best TikTok Marketing Courses for 2025
H2	9 Best Go (Golang) Courses for 2025
H2	13 Best SQL Courses for 2025: The Language of Databases
H2	9 Best Positive Psychology and Happiness Courses for 2025
H2	7 Best SAS Courses for 2025: Robust Data Analytics
H2	Browse our popular curated collections
H3	Featured
H3	1300+ Universities
H3	85 Providers
H3	1700+ Institutions
H3	Recent articles RSS Feed
H3	How VDCI is Modernizing Architecture & Design Education To Create Industry-Ready Professionals
H3	How to Create Online Courses That Learners (are Motivated to) Finish
H3	Class Central X Coursera – Excerpts from the Podcast
H3	900+ Open University Free Certificates
H3	Does Duolingo Want Us To Hate Its Ads?
H3	How Noble Desktop’s New York Licensing Is Shaping Its Training Excellence
H3	New Friends, Careers, and Hobbies; How Online Courses Changed My Life
H3	Four Months After Unveiling Ambitious AI Roadmap, Udemy’s Co-founder CTO is Out
H3	From Beginner to AI Product Manager in 3 Months with Microsoft’s AI Product Manager Certificate
H3	Best Courses Guides
H4	Share
H5	Latest

Link structure 56% achieved

Internal links

(Important)

Some anchor texts are used more than once.

7 links don't have an anchor text.

The number of internal links is ok.

None of the anchor texts is too long.

All internal links are not using dynamic parameters.

Internal Linking

External links

(Nice to have)

There are 10 external links on this page.

External Links

Found links on this page

Link	Attributes	Anchor text
https://www.classcentral.com/		Class Central
/rankings		Rankings
/collections		Collections
/subjects		View all
/subject/cs		Computer Science
/subject/health		Health & Medicine
/subject/maths		Mathematics
/subject/business		Business
/subject/humanities		Humanities
/subject/engineering		Engineering
/subject/science		Science
/subject/education		Education & Teaching
/subject/social-sciences		Social Sciences
/subject/art-and-design		Art & Design
/subject/data-science		Data Science
/subject/programming-and-softw...		Programming
/subject/personal-development		Personal Development
/subject/infosec		Information Security (InfoSec)
/subjects		View all Subjects
/universities		Universities
/report/		The Report
/universities		1000+ universities
/report/	Subdomain Text duplicate	The Report
/report/duolingo-please-contro...	Subdomain	No Text
/report/duolingo-please-contro...	Subdomain	Does Duolingo Want Us To Hate Its Ads?
/report/author/kanishka/	Subdomain	Kanishka Nangare
/report/how-vdci-is-modernizin...	Subdomain	How VDCI is Modernizing Architecture & Design Education To Create Industry-Ready Professionals
/report/best-tiktok-marketing-...	Subdomain	7 Best TikTok Marketing Courses for 2025
/report/best-go-courses/	Subdomain	9 Best Go (Golang) Courses for 2025
/report/best-free-sql-courses/	Subdomain	13 Best SQL Courses for 2025: The Language of Databases
/report/how-to-create-online-c...	Subdomain	How to Create Online Courses That Learners (are Motivated to) Finish
/write-for-us		Write for The Report
/report/		Visit The Report
/lists		Lists Showcase
/signup		Sign up
/login		Log in
/signup	Text duplicate	Sign up
/login	Text duplicate	Log in
/signup	Text duplicate	Sign up
/report/free-google-certificat...	Subdomain	600 Free Google Certifications Trending
/subject/psychology		Psychology 3,239 courses
/subject/microsoft-excel		Microsoft Excel 2,275 courses
/subject/graphic-design		Graphic Design 4,918 courses
/course/philosophy-science-rel...		Philosophy, Science and Religion: Religion and Science University of Edinburgh
/course/crypto-616		Cryptography I Stanford University
/course/kadenze-introduction-t...		Introduction to Graphic Illustration Cornish College of the Arts
/subjects		subject
/universities		university
/help/intro-to-online-learning		Learn more
https://imp.i384100.net/c/2597...	New window External Subdomain	Coursera Plus: 40% Off
https://click.linksynergy.com/...	New window External Subdomain	Subscribe to the Best
/report/free-certificates/	New window	Free Certificates
/institution/stanford	New window	Stanford
/institution/google	New window	Google
/provider/codesignal	New window	Free AI-powered Learning
/subject/personal-development	New window Text duplicate	Personal Development
/institution/amazon	New window	Amazon
/subject/business	New window Text duplicate	Business
/provider/noble-desktop	New window	Tech Career Training
/subject/cs	New window Text duplicate	Computer Science
/provider/semrush-academy	New window	Free SEO Certificates
/provider/corporate-finance-in...	New window	Finance & Banking
/university/harvard		Harvard University IMG-ALT Harvard University Logo
/university/stanford		Stanford University IMG-ALT Stanford University Logo
/university/iit-kharagpur		IIT Kharagpur IMG-ALT IIT Kharagpur Logo
/university/mit		MIT IMG-ALT MIT Logo
/university/rice		Rice University IMG-ALT Rice University Logo
/university/iitm		IIT Madras IMG-ALT IIT Madras Logo
/university/columbia		Columbia University IMG-ALT Columbia University Logo
/university/cornell		Cornell University IMG-ALT Cornell University Logo
/university/edinburgh		U. of Edinburgh IMG-ALT U. of Edinburgh Logo
/university/purdue		Purdue University IMG-ALT Purdue University Logo
/university/penn		U. of Pennsylvania IMG-ALT U. of Pennsylvania Logo
/university/duke		Duke University IMG-ALT Duke University Logo
/university/umich		U. of Michigan IMG-ALT U. of Michigan Logo
/university/tou		The Open University IMG-ALT The Open University Logo
/universities		Browse universities
/provider/coursera		Coursera IMG-ALT Coursera Logo
/provider/edx		edX IMG-ALT edX Logo
/provider/futurelearn		FutureLearn IMG-ALT FutureLearn Logo
/provider/udemy		Udemy IMG-ALT Udemy Logo
/provider/linkedin-learning		LinkedIn Learning IMG-ALT LinkedIn Learning Logo
/provider/noble-desktop		Noble Desktop IMG-ALT Noble Desktop Logo
/provider/skillshare		Skillshare IMG-ALT Skillshare Logo
/providers		Browse providers
/institution/google	Text duplicate	Google IMG-ALT Google Logo
/institution/amazon	Text duplicate	Amazon IMG-ALT Amazon Logo
/institution/microsoft		Microsoft IMG-ALT Microsoft Logo
/institution/ibm		IBM IMG-ALT IBM Logo
/institution/smithsonian		Smithsonian IMG-ALT Smithsonian Logo
/institution/united-nations		United Nations IMG-ALT United Nations Logo
/institution/nptel		NPTEL IMG-ALT NPTEL Logo
/institutions		Browse institutions
/collection/top-free-online-co...		IMG-ALT Best Online Courses of All Time
/report/most-popular-courses-2...	Subdomain	IMG-ALT Class Central’s Most Popular Courses of the Year (2025 Edition)
/rankings		View rankings
/signup		free account A-TITLE Sign up for Class Central
/report/feed/	Subdomain	RSS Feed
/report/how-vdci-is-modernizin...	Subdomain	No Text
/report/how-vdci-is-modernizin...	Subdomain Text duplicate	How VDCI is Modernizing Architecture & Design Education To Create Industry-Ready Professionals
/report/author/team/	Subdomain	By Class Central Team
/report/how-to-create-online-c...	Subdomain Text duplicate	How to Create Online Courses That Learners (are Motivated to) Finish
/report/author/raynie-andrewsen/	Subdomain	By Raynie Andrewsen
/report/class-central-x-course...	Subdomain	Class Central X Coursera – Excerpts from the Podcast
/report/author/team/	Subdomain Text duplicate	By Class Central Team
/report/open-university-free-c...	Subdomain	900+ Open University Free Certificates
/report/author/manoel/	Subdomain	By Manoel Cortes Mendez
/report/duolingo-please-contro...	Subdomain Text duplicate	Does Duolingo Want Us To Hate Its Ads?
/report/author/kanishka/	Subdomain	By Kanishka Nangare
/report/noble-desktop-new-york...	Subdomain	How Noble Desktop’s New York Licensing Is Shaping Its Training Excellence
/report/author/team/	Subdomain Text duplicate	By Class Central Team
/report/how-online-courses-cha...	Subdomain	New Friends, Careers, and Hobbies; How Online Courses Changed My Life
/report/author/pat-bowden/	Subdomain	By Pat Bowden
/report/udemy-cto-co-founder-out/	Subdomain	Four Months After Unveiling Ambitious AI Roadmap, Udemy’s Co-founder CTO is Out
/report/author/dhawal/	Subdomain	By Dhawal Shah
/report/microsoft-ai-product-m...	Subdomain	From Beginner to AI Product Manager in 3 Months with Microsoft’s AI Product Manager Certificate
/report/author/team/	Subdomain Text duplicate	By Class Central Team
/report/best-tiktok-marketing-...	Subdomain	No Text
/report/best-tiktok-marketing-...	Subdomain Text duplicate	7 Best TikTok Marketing Courses for 2025
/report/best-go-courses/	Subdomain	No Text
/report/best-go-courses/	Subdomain Text duplicate	9 Best Go (Golang) Courses for 2025
/report/best-free-sql-courses/	Subdomain	No Text
/report/best-free-sql-courses/	Subdomain Text duplicate	13 Best SQL Courses for 2025: The Language of Databases
/report/best-positive-psycholo...	Subdomain	No Text
/report/best-positive-psycholo...	Subdomain	9 Best Positive Psychology and Happiness Courses for 2025
/report/best-sas-courses/	Subdomain	No Text
/report/best-sas-courses/	Subdomain	7 Best SAS Courses for 2025: Robust Data Analytics
/report/	Subdomain	More on The Report
/report/udemy-top-courses/	Subdomain	IMG-ALT 250 Top Udemy Courses of All Time
/report/india-online-degrees/	Subdomain	IMG-ALT 2000+ UGC Approved Online Degrees from India’s Top Universities
/report/mooc-based-masters-deg...	Subdomain	IMG-ALT 70+ Legit Master’s Degrees You Can Now Earn Completely Online
/report/list-of-mooc-based-mic...	Subdomain	IMG-ALT Massive List of MOOC-based Microcredentials
/collection/ivy-league-moocs	Subdomain	IMG-ALT Free Online Ivy League Courses
/report/most-popular-online-co...	Subdomain	IMG-ALT The 100 Most Popular Online Courses of All Time
/collections		Browse collections
https://www.classcentral.com/		Home
/subjects		Browse by subject
/subject/cs	Text duplicate	Computer Science
/subject/psychology		Psychology
/subject/cybersecurity		Cybersecurity
/subject/health		Health
/subject/law		Law
/subject/accounting		Accounting
/subject/web-development		Web Development
/providers		Browse by provider
/provider/coursera	Text duplicate	Coursera
/provider/edx	Text duplicate	edX
/provider/futurelearn	Text duplicate	FutureLearn
/provider/udacity		Udacity
/provider/noble-desktop	Text duplicate	Noble Desktop
/provider/udemy	Text duplicate	Udemy
/provider/freecodecamp		freeCodeCamp
/universities		Browse by university
/university/harvard		Harvard
/university/stanford	Text duplicate	Stanford
/university/gatech		Georgia Tech
/university/umich		University of Michigan
/university/purdue	Text duplicate	Purdue University
/university/duke	Text duplicate	Duke University
/university/iitm	Text duplicate	IIT Madras
/institutions		Browse by institution
/institution/google	Text duplicate	Google
/institution/microsoft	Text duplicate	Microsoft
/institution/ibm	Text duplicate	IBM
/institution/amazon	Text duplicate	Amazon
/institution/linuxfoundation		Linux Foundation
/institution/british-council		British Council
/institution/salesforce		Salesforce
/rankings	Text duplicate	Rankings
/collection/top-free-online-co...	Text duplicate	Best Online Courses of All Time
/report/best-free-online-cours...	Subdomain	Best Online Courses of the Year
/report/most-popular-online-co...	Subdomain	Most Popular Courses of All Time
/report/most-popular-courses-2...	Subdomain	Most Popular Courses of the Year
/report/coursera-top-courses/	Subdomain	250 Top FREE Coursera Courses of All Time
/report/edx-top-courses/	Subdomain	100 Top FREE edX Courses of All Time
/report/udemy-top-courses/	Subdomain Text duplicate	250 Top Udemy Courses of All Time
/report/		The Report by Class Central
/report/feed/	Subdomain Text duplicate	RSS Feed
/report/2022-year-in-review/	Subdomain	The "New Normal" that Wasn't A-TITLE The "New Normal" that Wasn't
/report/class-central-ddos-att...	Subdomain	DDoS Attack on Class Central A-TITLE DDoS Attack on Class Central
/report/india-online-degrees/	Subdomain	2000+ Online Degrees in India A-TITLE 2000+ Online Degrees in India
/report/cs50-free-certificate/	Subdomain	Harvard's CS50 Free Certificate Guide A-TITLE Harvard's CS50 Free Certificate Guide
/report/open-university-inside...	Subdomain	How Open University Works A-TITLE How Open University Works
/report/free-certificates/	Subdomain	Free Certificates & Courses A-TITLE Free Courses and Certificates
/report/google-free-certificates/	Subdomain	300+ Free Google Certificates A-TITLE 300+ Free Google Certificates
/report/big-tech-free-courses/	Subdomain	9000 Free Courses from Tech Giants A-TITLE 9000 Free Courses from Tech Giants
/report/coursera-free-online-c...	Subdomain	1800+ Free Coursera Courses A-TITLE 1800+ Free Coursera Courses
/collection/ivy-league-moocs/	Subdomain	Ivy League Online Courses A-TITLE Ivy League Online Courses
/report/writing-free-online-co...	Subdomain	180 Free Writing Online Courses A-TITLE 180 Free Writing Online Courses
/about		About Class Central
https://www.facebook.com/class...	New window External Subdomain	Facebook
https://www.twitter.com/classc...	New window External Subdomain	Twitter
https://www.linkedin.com/compa...	New window External Subdomain	LinkedIn
https://www.youtube.com/classc...	New window External Subdomain	YouTube
https://bsky.app/profile/class...	New window External	Bluesky
/about/privacy-policy		Privacy Policy
/about		About Us
/about/careers		Join Us
/write-for-us		Write for Us
https://www.classcentral.com/help		Help Center
/contact		Contact Us
http://www.facebook.com/sharer...	New window External Subdomain Text duplicate	Facebook
https://twitter.com/intent/twe...	New window External Text duplicate	Twitter
https://bsky.app/intent/compos...	New window External Text duplicate	Bluesky
/cdn-cgi/l/email-protection		Email

Server configuration 71% achieved

HTTP redirects

(Critically important)

This page redirects to "https://www.classcentral.com/"

WWW Redirect

HTTP header

(Important)

No X-Powered HTTP header is sent.

The web server transmits the web page (HTML) in compressed form.

HTTP headers

Performance

(Somewhat important)

The page response time is slow (1.40 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.

The file size of the HTML document is very large (813 kB).

Page Speed

HTTP Response Header

Name	Value
date	Mon, 21 Jul 2025 19:00:17 GMT
content-type	text/html; charset=UTF-8
server	cloudflare
vary	Accept-Encoding
cache-control	max-age=0, must-revalidate, private
expires	Mon, 21 Jul 2025 19:00:17 GMT
server-timing	cfCacheStatus;desc="DYNAMIC"
strict-transport-security	max-age=31536000; includeSubDomains; preload;
x-xss-protection	1; mode=block
x-content-type-options	nosniff
x-frame-options	sameorigin
cf-cache-status	DYNAMIC
content-encoding	br
set-cookie	130 Characters
cf-ray	962cf0b98e911c45-CDG
alt-svc	h3=":443"; ma=86400
statuscode	200
http_version	HTTP/2

External factors 100% achieved

Backlinks

(Critically important)

This page is referenced by wikipedia.

This website has excellent links from other websites.

This page has backlinks from 2,357 referring domains.

This page has 13,181 backlinks.

This page has backlinks from 1,920 different ip addresses.

Backlinks

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

# www.robotstxt.org/
# www.google.com/support/webmasters/bin/answer.py?hl=en&answer=156449

User-agent: GPTBot
Disallow: /

User-agent: *
Disallow: /about/privacy-policy
Disallow: /maestro/*
Disallow: /course/*/visit
Disallow: /catalog-iframe
Disallow: /u/*
Disallow: /api/*
Disallow: /reviews/*

Sitemap: https://www.classcentral.com/sitemap.xml
Sitemap: https://www.classcentral.com/report/sitemap_index.xml

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www.classcentral.com

Class Central • Find the best courses, wherever they exist.

Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

Keyword	Result	Recheck
Class	81%	Check
Central	81%	Check
Class Central	81%	Check
Class Central Find	76%	Check
Class Central aggregates courses	71%	Check
Courses	70%	Check
Best	70%	Check
best courses	70%	Check
Find the Best	69%	Check
Find	66%	Check
Best Online Courses	62%	Check
exist	61%	Check
Online Courses	58%	Check
Courses 2025	58%	Check
Best Online	58%	Check
Best Free	58%	Check
Popular courses	57%	Check
FREE Coursera Courses	55%	Check
Providers	52%	Check
Top FREE	48%	Check
Coursera	47%	Check
Microsoft	47%	Check
Udemy	47%	Check
New	47%	Check
Top	47%	Check

Show more keywords and terms

Classcentral.com - SEO Checker

Task list of SEO Improvements 4 Tasks

Meta specifications 100% achieved

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(Nice to have)

(Nice to have)

Meta tags

Automatically check classcentral.com including all subpages at once!

Page quality 55% achieved

(Critically important)

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(Nice to have)

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Media list

Page structure 71% achieved

(Critically important)

(Important)

Heading structure

Link structure 56% achieved

(Important)

(Nice to have)

Found links on this page

Server configuration 71% achieved

(Critically important)

(Important)

(Somewhat important)

HTTP Response Header

External factors 100% achieved

(Critically important)

Links from Wikipedia

Robots.txt

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Most important keywords

Automatically check classcentral.com including all subpages at once!

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