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Site Info - Coursera.org

Overview of web technologies used by Coursera.org.

Website Background

Coursera | Degrees, Certificates, & Free Online Courses
Learn new job skills in online courses from industry leaders like Google, IBM, & Meta. Advance your career with top degrees from Michigan, Penn, Imperial & more.

Description on Homepage

Top 10k among all websites

Popularity rank

Gatsby is an open source static website generator based on React and GraphQL.

Gatsby 2.24.82
87% of sites use a newer version
used on inner pages

WordPress is an open source blog publishing and content management system, based on PHP and MySQL.

WordPress
used on a subdomain

JavaScript is a lightweight, object-oriented, cross-platform scripting language.

JavaScript

Static websites don't use any server-side programming language for generating web pages, but deliver fixed content which is created manually or with an offline tool.

static files
used on inner pages

PHP is a scripting language for creating websites.

PHP
used on a subdomain

JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages.

JavaScript

React is an open source JavaScript library for building user interfaces, developed by Facebook.

React
used on inner pages

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

jQuery
used on a subdomain

Bootstrap is an open source HTML, CSS, and JavaScript framework.

Bootstrap
used on a subdomain

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the visitors browser.

Modernizr
used on a subdomain

Bootstrap is an open source HTML, CSS, and JavaScript framework.

Bootstrap
used on a subdomain

Node.js is a server-side JavaScript environment for writing network programs such as web servers, originally developed by Ryan Dahl.

Node.js

Envoy Proxy is a proxy server designed for large service-oriented architectures.

Envoy

Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.

Nginx
used on a subdomain

Amazon is a US-based e-commerce and cloud computing provider.

Amazon
hosting info partly based on data from ipinfo.io

Amazon is a US-based e-commerce and cloud computing provider.

Amazon

Amazon CloudFront is a content delivery web service by Amazon.

Amazon CloudFront

Amazon is a US-based e-commerce and cloud computing provider.

Amazon

Gmail is the email service provided by Google.

Gmail

Starfield Technologies is an SSL certificate authority owned by Go Daddy.

Starfield

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google. This includes the Ads conversion tracking and the Floodlight services.

Google Analytics
used on inner pages

Microsoft UET (Universal Event Tracking) records what visitors do on a website after they click on an ad.

Microsoft UET
used on inner pages

The LinkedIn Insight Tag helps to optimize LinkedIn campaigns.

LinkedIn Insight Tag
used on inner pages

WordPress Jetpack Stats is a visitor tracking plugin for the WordPress publishing platform.

WordPress Jetpack
used on a subdomain

Gauges is a website analytics tool.

Gauges
used on a subdomain

The Google Advertising network consists of AdSense, DoubleClick and other services.

Google Ads
used on inner pages

AdRoll is an advertising network for retargeting and other advertising formats.

AdRoll
used on inner pages

The Google Tag Manager is a Google service to support webmasters to manage tags on their websites.

Google Tag Manager
used on inner pages

Facebook Social Plugins provide a way for Facebook users to share web pages with their friends.

Facebook
used on a subdomain

A Twitter Button allows a Twitter user to post a tweet from the visited site.

Twitter
used on a subdomain

LinkedIn Share Buttons enable visitors to to share website content with their LinkedIn network.

LinkedIn
used on a subdomain

External Cascading Style Sheets define style rules in a separate CSS file.

External CSS

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Embedded CSS

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

Inline CSS

Persistent cookies with an expiration time between 1 day and 1 month.

Cookies expiring in days
used on inner pages

Persistent cookies with an expiration time between 1 month and 1 year.

Cookies expiring in months
used on inner pages

Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.

Non-HttpOnly Cookies
used on inner pages

Non-secure cookies may be used via an unencrypted connections, which may be a security threat.

Non-Secure Cookies
used on inner pages

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression

A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.

Strong ETag
used on inner pages

A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.

Weak ETag

HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol.

HTTP/3
used on a subdomain

HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.

HTTP Strict Transport Security

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

Default subdomain www

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Default protocol https

The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph.

Open Graph

Twitter Cards enable automatic attachment of photos, videos and media elements to Tweets.

Twitter Cards

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

JSON-LD

Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.

Generic RDFa

HTML5 is the fifth revision of the HTML standard.

HTML5

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

UTF-8

Scalable Vector Graphics (SVG) is an XML-based vector image format.

SVG

PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.

PNG
used on inner pages

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

JPEG
used on inner pages

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

GIF
used on a subdomain

Organizations

.org

United States
Germany
Sweden
Netherlands
used until recently
Finland
used until recently

English

 

 

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