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Site Info - Asciinema.org

Overview of web technologies used by Asciinema.org.

Website Background

Record and share your terminal sessions, the simple way - asciinema.org

Description on Homepage

Top 1m among all websites

Popularity rank

Hugo is an open source static website generator written in Go.

Hugo 0.123.3
54% of sites use a newer version
used on a subdomain

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

Discourse
used on a subdomain

MkDocs is a static site generator that's geared towards building project documentation.

MkDocs 1.6.1
1% of sites use a newer version
used on a subdomain

Erlang is a general-purpose programming language, often used for implementing real-time systems.

Erlang

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

Ruby
used on a subdomain

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 a subdomain

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

JavaScript

Cowboy is an open source Erlang-based web server by Nine Nines.

Cowboy

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

Nginx
used on a subdomain

Caddy is an open-source web server implemented in Go.

Caddy
used on a subdomain

GitHub offers project repository hosting and also site hosting services.

GitHub
used on a subdomain

Discourse offers managed hosting of its open source discussion platform.

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

GitHub offers project repository hosting and also site hosting services.

GitHub
used on a subdomain

Discourse offers managed hosting of its open source discussion platform.

Discourse
used on a subdomain

Fastly is a content delivery network.

Fastly
used on a subdomain

Infomaniak is a Swiss internet services provider.

Infomaniak

Fastmail is a provider of email services.

Fastmail

Discourse offers managed hosting of its open source discussion platform.

Discourse
used on a subdomain

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

Let’s Encrypt

Zstandard is a lossless data compression algorithm developed by Yann Collet at Facebook.

Zstandard Compression

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

Session cookies are temporary cookies, which are deleted when the user closes the browser.

Session Cookies

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

HttpOnly Cookies

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

Non-Secure Cookies

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression
used on a subdomain

Brotli is a lossless compression algorithm developed by Google.

Brotli Compression
used on a subdomain

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 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
used on a subdomain

The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address.

IPv6

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

HTTP/3

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

Persistent cookies with an expiration time of up to 1 day.

Cookies expiring in hours
used until recently

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 inner pages

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

Twitter/X Cards
used on inner pages

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

JSON-LD
used on a subdomain

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

Generic RDFa
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

Organizations

.org

United Kingdom
Canada
used on a subdomain

English

 

 

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