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.

Robots No Yahoo Directory

   These are used if your website is listed in this directorie with information you do not want used in the results pages. This might be the case if you have old, outdated listings that no longer apply. They tell robots not to use information from these sources, and they are optional.

Robots No Open Directory Project

   These are used if your website is listed in this directorie with information you do not want used in the results pages. This might be the case if you have old, outdated listings that no longer apply. They tell robots not to use information from these sources, and they are optional.

favicon.ico

   A favicon, also known as a shortcut icon, website icon, tab icon, URL icon, or bookmark icon, is a file containing one or more small icons, associated with a particular website or web page.

Facebook SDK

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

Plesk

   Plesk is a commercial web hosting platform with a control panel that allows a server administrator to set up new websites, reseller accounts, e-mail accounts

Viewport - initial-scale

   The viewport is the user`s visible area of a web page. The viewport varies with the device, and will be smaller on a mobile phone than on a computer screen. Before tablets and mobile phones, web pages were designed only for computer screens, and it was common for web pages to have a static design and a fixed size.

Viewport - Width

   The viewport is the user`s visible area of a web page. The viewport varies with the device, and will be smaller on a mobile phone than on a computer screen. Before tablets and mobile phones, web pages were designed only for computer screens, and it was common for web pages to have a static design and a fixed size.

Viewport - Mobile compatible

   The viewport is the user`s visible area of a web page. The viewport varies with the device, and will be smaller on a mobile phone than on a computer screen. Before tablets and mobile phones, web pages were designed only for computer screens, and it was common for web pages to have a static design and a fixed size.

Server partial requests support

   The Accept-Ranges response HTTP header is a marker used by the server to advertise its support of partial requests. The value of this field indicates the unit that can be used to define a range.

AddThis

   AddThis free website tools include share buttons, targeting tools and content recommendations help you get more likes, shares and followers

Apache 2.2.3 |Operating System:CentOS

   The Apache HTTP Server, colloquially called Apache, is free and open-source cross-platform web server software, released under the terms of Apache License 2.0. Apache is developed and maintained by an open community of developers under the auspices of the Apache Software Foundation.