Twitch.tv is built with the following tech stack:
Document Encoding
UTF-8
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.
Document Standards
Twitter Cards
Twitter cards make it possible for you to attach media experiences to Tweets that link to your content.
Open Graph Protocol
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
Meta Description
The description attribute provides a concise explanation of the page content.
Meta Robot
This page contains a meta robots tag which tells search engines and robots to index or not index the page.
Canonical Content Tag
Public specification of a preferred URL for a page allows search engines to understand the original location for content.
HREF Lang
Contains language specific links.
Web App Manifest
Defines the attributes of a web app in a simple JSON file. It describes how the web app should appear on the users system and how it should launch.
JSON-LD
JSON-LD, or JavaScript Object Notation for Linked Data, is a method of transporting Linked Data using JSON.
Javascript
JavaScript is a scripting language most often used for client-side web development.
Srcset
Adapting images for high-resolution and low-resolution displays.
HTML5 DocType
The DOCTYPE is a required preamble for HTML5 websites.
HTML 5 Specific Tags
This page contains tags that are specific to an HTML 5 implementation.
Content Security Policy
Content Security Policy is a computer security concept, to prevent cross-site scripting XSS attacks.
Content Type Options
Used to disable MIME-sniffing for a particular HTTP response.
Strict Transport Security
The HTTP Strict-Transport-Security (HSTS) header instructs the browser to only use https.
Language
Bulgaria HREF LANG
This webpage has alternate versions available in Bulgaria via the use of the hreflang tag.
Costa Rica HREF LANG
This webpage has alternate versions available in Costa Rica via the use of the hreflang tag.
Danish HREF LANG
This webpage has alternate versions available in Danish via the use of the hreflang tag.
Germany HREF LANG
This webpage has alternate versions available in Germany via the use of the hreflang tag.
Greek HREF LANG
This webpage has alternate versions available in Greek via the use of the hreflang tag.
United States HREF LANG
This webpage has alternate versions available in United States via the use of the hreflang tag.
United Kingdom HREF LANG
This webpage has alternate versions available in United Kingdom via the use of the hreflang tag.
Spain HREF LANG
This webpage has alternate versions available in Spain via the use of the hreflang tag.
Mexico HREF LANG
This webpage has alternate versions available in Mexico via the use of the hreflang tag.
Finland HREF LANG
This webpage has alternate versions available in Finland via the use of the hreflang tag.
France HREF LANG
This webpage has alternate versions available in France via the use of the hreflang tag.
Hungarian HREF LANG
This webpage has alternate versions available in Hungarian via the use of the hreflang tag.
Italy HREF LANG
This webpage has alternate versions available in Italy via the use of the hreflang tag.
Japan HREF LANG
This webpage has alternate versions available in Japan via the use of the hreflang tag.
Korea HREF LANG
This webpage has alternate versions available in Korea via the use of the hreflang tag.
Netherlands HREF LANG
This webpage has alternate versions available in Netherlands via the use of the hreflang tag.
Norway HREF LANG
This webpage has alternate versions available in Norway via the use of the hreflang tag.
Poland HREF LANG
This webpage has alternate versions available in Poland via the use of the hreflang tag.
Portugal HREF LANG
This webpage has alternate versions available in Portugal via the use of the hreflang tag.
Brazil HREF LANG
This webpage has alternate versions available in Brazil via the use of the hreflang tag.
Romanian HREF LANG
This webpage has alternate versions available in Romanian via the use of the hreflang tag.
Russia HREF LANG
This webpage has alternate versions available in Russia via the use of the hreflang tag.
Slovak HREF LANG
This webpage has alternate versions available in Slovak via the use of the hreflang tag.
Sweden HREF LANG
This webpage has alternate versions available in Sweden via the use of the hreflang tag.
Thai HREF LANG
This webpage has alternate versions available in Thai via the use of the hreflang tag.
Turkey HREF LANG
This webpage has alternate versions available in Turkey via the use of the hreflang tag.
Vietnamese HREF LANG
This webpage has alternate versions available in Vietnamese via the use of the hreflang tag.
China HREF LANG
This webpage has alternate versions available in China via the use of the hreflang tag.
Taiwan HREF LANG
This webpage has alternate versions available in Taiwan via the use of the hreflang tag.
SSL Certificates
HSTS
Forces browsers to only communicate with the site using HTTPS.
Mobile
Viewport Meta
This page uses the viewport meta tag which means the content may be optimized for mobile content.
Apple Mobile Web App Capable
Launches a web application for Safari on iOS in full-screen mode to look like a native application.
Apple Mobile Web Clips Icon
This page contains an icon for iPhone, iPad and iTouch devices.