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PHP is a scripting language for creating websites.

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

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

Beget is a Russian web hosting provider.

Hetzner is a German web hosting provider.

Beget is a Russian web hosting provider.

Hetzner is a German web hosting provider.

Masterhost is a Russian internet services provider.

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

Yandex Libraries Hosting provides hosted JavaScript libraries, provided by Yandex.

LiveInternet is a Russian web access counter service.

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

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.

Rambler is a Russian web portal offering a web counter service.

Facebook Social Plugins provide a way for Facebook users to share web pages with their friends.

A Twitter/X Button allows a Twitter user to post a tweet from the visited site.

The VKontakte (or VK) share button lets website visitors share content on the Russian social network.

The Odnoklassniki share button enables users to share content on the Russian social network, which is part of the Mail.Ru Group.

The Mail.Ru share button lets visitors share content on the social network part of the Russian Mail.Ru portal.

The Yandex Share widget allows visitors to share content on various social networks.

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.

Gzip (GNU zip) is a file compression algorithm.

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/.

Transitional version of HTML.

Windows-1251 is an 8-bit character encoding, designed to cover languages that use the Cyrillic alphabet.

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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