Facebook LikeFacebook Like

Facebook Like Usage Statistics · Download List of All Websites using Facebook Like

Allows users to Like items they find on the web, similar to how you Like items within Facebook.

Social Sharing

Twitter Tweet ButtonTwitter Tweet Button

Twitter Tweet Button Usage Statistics · Download List of All Websites using Twitter Tweet Button

Official Tweet Button for sharing articles on websites and counting how many times a URL has been shared.

JavaScript Libraries and Functions

Facebook SDKFacebook SDK

Facebook SDK Usage Statistics · Download List of All Websites using Facebook SDK

JavaScript SDK enables you to access all of the features of the Graph API via JavaScript, and it provides a rich set of client-side functionality for authentication and sharing. It differs from Facebook Connect.

Social SDK

Facebook for WebsitesFacebook for Websites

Facebook for Websites Usage Statistics · Download List of All Websites using Facebook for Websites

Allows a user to make a website more sociable and connected with integrations from the hugely popular Facebook website.

Social SDK

Email Hosting Providers

SPFSPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

Standard

SSL Certificates

SSL by DefaultSSL by Default

SSL by Default Usage Statistics · Download List of All Websites using SSL by Default

The website redirects traffic to an HTTPS/SSL version by default.

Operating Systems and Servers

DebianDebian

Debian Usage Statistics · Download List of All Websites using Debian

Debian is a free operating system (OS) for your computer.