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 Analytics

   Google Analytics is a web analytics service offered by Google that tracks and reports website traffic, currently as a platform inside the Google Marketing Platform brand.

Nginx 1.10.3

   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.

Pragma Header - backwards compatibility with HTTP/1.0

   The Pragma HTTP/1.0 general header is an implementation-specific header that may have various effects along the request-response chain. It is used for backwards compatibility with HTTP/1.0 caches where the Cache-Control HTTP/1.1 header is not yet present.

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: сеоньюс, сеоньюз, новости, интернет, маркетинг, seo-индустрия, раскрутка, сайт, оптимизация, продвижение, seo-новость, SEOnews, сео, seo, news

Meta Description

   A meta description is a 160-character snippet, a meta tag in HTML, that summarizes a page`s content. this website is having meta description of the following : Проект SEOnews.ru предназначен для каждого участника рынка поискового маркетинга и ставит перед собой задачу: способствовать цивилизованному развитию рынка интернет маркетинга. На страницах SEOnews можно найти новости Seo-индустрии, информацию о поисковых системах, теорию и практику поисковой оптимизации, продвижения и раскрутки сайтов, основы интернет-рекламы, а также рекомендации по выбору SEO-компании.

No Cache Content

   Forces caches to submit the request to the origin server for validation before releasing a cached copy.

Character Encoding :UTF-8

   This website is using UTF-8 character encoding in HTML , character encoding is used to represent a repertoire of characters by some kind of encoding system.

Chunked transfer encoding

   Chunked transfer encoding is a streaming data transfer mechanism available in version 1.1 of the Hypertext Transfer Protocol (HTTP). In chunked transfer encoding, the data stream is divided into a series of non-overlapping "chunks"

Facebook SDK

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

manifest.json

   The manifest.json file is the only file that every extension using WebExtension APIs must contain.

PHP 5.4.4-14+deb7u14

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