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GitHub Pages is a web page creation and hosting service by GitHub.

Mastodon is an open source social network platform based on Ruby on Rails.

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

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

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

MathJax is a JavaScript engine for displaying mathematical formulas.

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

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

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

Ubuntu is a Linux distribution.

GitHub offers project repository hosting and also site hosting services.

Hetzner is a German web hosting provider.

GitHub offers project repository hosting and also site hosting services.

Hetzner is a German web hosting provider.

Fastly is a content delivery network.

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

Fastmail is a provider of email services.

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

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.

GoatCounter is an open-source web analytics tool written on Go by Martin Tournoij.

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

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

Gzip (GNU zip) is a file compression algorithm.

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.

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

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

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

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

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

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

Secure cookies are used only via an encrypted connections, which may increase security.

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.

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

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

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

Microformats is a approach to semantic markup which uses (X)HTML tags to convey additional metadata.

HTML5 is the fifth revision of the HTML standard.

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

WebP is an image format that provides lossless and lossy compression, developed by Google.

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.

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

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

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