Nginx 1.1.14

   Nginx is a web server which can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. The software was created by Igor Sysoev and first publicly released in 2004. A company of the same name was founded in 2011 to provide support and Nginx plus paid software.

PHP 5.3.10-1~cl+1

   PHP: Hypertext Preprocessor is a general-purpose programming language originally designed for web development.

SPF

   The Sender Policy Framework (SPF) is an email-authentication technique which is used to prevent spammers from sending messages on behalf of your domain. With SPF an organisation can publish authorized mail servers.

Google Plus

   Google+ was an Internet-based social network owned and operated by Google. The network was launched on June 28, 2011 in the attempt to challenge other social networks and for a time linked other Google products like Blogger and YouTube.

Facebook SDK

   The Facebook SDK for JavaScript provides a rich set of client-side functionality

jquery 1.5.0

   JavaScript library for DOM operations

Twitter API

   You can access Twitter via the web or your mobile device. To share information on Twitter as widely as possible

Gzip Content-Encoding

   The Content-Encoding entity header is used to compress the media-type. When present, its value indicates which encodings were applied to the entity-body. It lets the client know how to decode in order to obtain the media-type referenced by the Content-Type header.

Google Hosted Libraries

   The Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.

Vary Header Accept-Encoding

   The Accept-Encoding request HTTP header advertises which content encoding, usually a compression algorithm, the client is able to understand. Using content negotiation, the server selects one of the proposals, uses it and informs the client of its choice with the Content-Encoding response header.

Meta keywords

   Meta keywords are types of meta tags in the HTML source code of a webpage. They describe the content of a website shortly and concisely,this website is using the following keywords: каталог сайтов, каталог, добавить сайт, рейтинг сайтов, реклама сайтов, addurl, addsite, скриншоты сайтов, поиск сайтов, добавить ссылку, белый каталог, раскрутка сайта