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OpenOffice is an open source office suite that also supports creation of web pages.

Zen Cart is an open source shopping cart and online store system based on PHP and MySQL by Zen Ventures.

PHP is a scripting language for creating websites.

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.

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.

SuSE is a Linux distribution owned by Novell.

AT&T is a US-based multinational company providing among others IT and telecommunication services.

AT&T is a US-based multinational company providing among others IT and telecommunication services.

ZoneEdit provides domain management services, owned by easyDNS.

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

The validity of the SSL certificate has expired.

The CDNJS is a content distribution network, hosting a large number of JavaScript libraries, provided by CloudFlare.

The jQuery CDN hosts copies of the jQuery library, provided by MaxCDN.

The Google Advertising network consists of AdSense, DoubleClick and other services.

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

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

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

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.

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.

HTML5 is the fifth revision of the HTML standard.

Transitional version of HTML.

Transitional version of XHTML.

ISO-8859-1 (informally also called Latin-1) is an 8-bit character set for Western European languages.

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.

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

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