What is a SSL Certificate?
SSL is an acronym for Secure Sockets Layer, a global standard security technology developed by Netscape in 1994. SSL is all about encryption. SSL is the backbone of your secure Internet and it protects your sensitive information as it travels across the world. It keeps the Internet from being ruled by anarchists and criminals and provides many direct benefits to you and your customers.It creates an encrypted link between a web server and a web browser.

How SSL Works?
The primary reason why SSL is used is to keep sensitive information sent across the Internet encrypted so that only the intended recipient can understand it. This is important because the information you send on the Internet is passed from computer to computer to get to the destination server. Any computer in between you and the server can see your credit card numbers, usernames and passwords, and other sensitive information if it is not encrypted with an SSL certificate. When an SSL certificate is used, the information becomes unreadable to everyone except for the server you are sending the information to. This protects it from hackers and identity thieves.

How do I know Whether the Site is Protected or Not?
Web browsers give visual cues, such as a lock icon or a green bar, to make sure visitors know when their connection is secured. This means that they will trust your website more when they see these cues and will be more likely to buy from you. SSL providers will also give you a trust seal that instills more trust in your customers.

Where Can I buy SSL certificate for My Site?
Comodo offers six different FREE SSL or Cheap SSL Certificates including Positive SSL, Enterprise Elite SSL, Wildcard SSL and site seals. PositiveSSL is one of the most popular and inexpensive SSL certificates in the industry.The PositiveSSL is best used on websites that offer low volume e-commerce transactions, and may also be ideal for securing a private Intranet/Extranet that is in need of security features.