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Site Info - Coursera.org

Overview of web technologies used by Coursera.org.

Website Background

Coursera | Online Courses From Top Universities. Join for Free
2000+ courses from schools like Stanford and Yale - no application required. Build career skills in data science, computer science, business, and more.

Description on Homepage

Number 679 of all websites according to Alexa

Popularity rank

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

JavaScript

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

JavaScript

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

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

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

SVG

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

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression

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/2 is the second major version of the HTTP network protocol.

HTTP/2

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

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

Starfield

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

Node.js

Amazon CloudFront is a content delivery web service by Amazon.

Amazon CloudFront
hosting info based on data from ipinfo.io

Non-profit organizations

.org

United States

English

Technology Score

The technology score rates a site based on its technologies in a range from 0 to 100. It consists in a popularity score (how many sites use the same technologies), a traffic score (how much traffic have other sites using the same technologies) and a version score (how many sites use more recent technology versions). Quality alerts also affect the rating.

TotalPopularity TrafficVersion
Technology Score513964
Server-side Programming Languages38670
Client-side Programming Languages7510050
Markup Languages678153
SSL Certificate Authorities411469
Web Servers38670
Reverse Proxy Services492474

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