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Joomla is an open source content management system, based on PHP and MySQL, originally forked from Mambo.

OpenCart is an open source shopping cart and online shop system based on PHP and MySQL.

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.

MooTools (My Object-Oriented Tools) is a modular, object-oriented JavaScript framework, originally developed by Valerio Proietti.

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

Gentoo is a Linux distribution.

SpaceWeb is a Russian web hosting provider owned by RBC Group.

RU-Center is a Russian domain registrar and web hosting provider owned by RBC Group.

SpaceWeb is a Russian web hosting provider owned by RBC Group.

RU-Center is a Russian domain registrar and web hosting provider owned by RBC Group.

SpaceWeb is a Russian internet services provider owned by RBC Group.

Registrar R01 is a Russian domain registrar and internet services provider owned by RBC Group.

SpaceWeb is a Russian internet services provider owned by RBC Group.

Registrar R01 is a Russian domain registrar and internet services provider owned by RBC Group.

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

The SSL certificate is invalid because it is not issued for the domain where it is used.

Yandex.Metrica is a free web analytics system combining customizable reporting tools with behavioral analytics.

Top.Mail.Ru is a Russian web access counter service.

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.

Persistent cookies with an expiration time between 1 day and 1 month.

Persistent cookies with an expiration time between 1 month and 1 year.

Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.

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

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

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/.

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.

Transitional version of XHTML.

Strict version of XHTML.

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.

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

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

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