PHP 5.5.38

   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.

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 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 : Il primo quotidiano on line interamente dedicato al mondo della sanità. Ogni giorno notizie, interviste, dibattiti, documenti, analisi e commenti su tutti i temi di attualità professionale per gli operatori del Servizio sanitario nazionale. Scienza, medicina, farmaci, politica nazionale e regionale, economia, legislazione, assicurazioni, salute

Google Publisher Tags

   Google Publisher Tags (GPT) is an ad tagging library with which you can dynamically build ad requests. GPT takes key details from you (such as ad unit code, ad size, and key-values), builds the request, and displays the ad on web pages or mobile apps.

Facebook SDK

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

jquery 1.6.2

   JavaScript library for DOM operations

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"

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.