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Site Info - Opencantonese.org

Overview of web technologies used by Opencantonese.org.

Website Background

Open Cantonese: Free Cantonese Lessons
Learn Cantonese speaking, listening, pronunciation, vocabulary and grammar.

Description on Homepage

Top 10m among all websites

Popularity rank

Discourse is an open source discussion platform written in Ruby on Rails.

Discourse 3.4.0
used on a subdomain

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

JavaScript

Ruby is a general-purpose object-oriented language originally developed by Yukihiro "Matz" Matsumoto in Japan.

Ruby
used on a subdomain

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

JavaScript

Next.js is an open source JavaScript framework based on React and Node.js.

Next.js

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

Node.js

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

Nginx
used on a subdomain

Linux is a Unix-like open source operating system originally developed by Linus Torvalds.

Linux

Vercel (formerly Zeit) offers hosting for web applications and static websites.

Vercel

DigitalOcean is a US-based web hosting provider.

DigitalOcean
used on a subdomain
hosting info partly based on data from ipinfo.io

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

Amazon

DigitalOcean is a US-based web hosting provider.

DigitalOcean
used on a subdomain

Namecheap is a US-based domain registrar and web hosting company.

Namecheap

Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group.

Let’s Encrypt

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
used on a subdomain

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

Inline CSS

Brotli is a lossless compression algorithm developed by Google.

Brotli Compression

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression
used on a subdomain

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 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 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
used on a subdomain

Twitter/X Cards enable automatic attachment of photos, videos and media elements to tweets.

Twitter/X Cards
used on a subdomain

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

JSON-LD
used on a subdomain

Microdata is a specification to integrate metadata within existing content on web pages.

Microdata
used on a subdomain

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 a subdomain

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