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TYPO3 is an open source content management system written in PHP, originally developed by Kasper Skårhøj.

PHP is a scripting language for creating websites.

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

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

The Apache HTTP Server is an open source web server by the Apache Software Foundation.

Mittwald is a German web hosting provider.

Mittwald is a German web hosting provider.

InterNetX is a German domain registrar and web hosting provider owned by United Internet.

SchlundTech is a German domain registrar and web hosting provider owned by United Internet.

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

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

Gzip (GNU zip) is a file compression algorithm.

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

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

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

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.

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.

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

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

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