Latest post from Search Engine People Blog, “Yes, You Should Get An SSL Certificate for Your Website”
“Google has recently come out and explicitly said were starting to use HTTPS as a ranking signal. Currently, it is a “lightweight signal”, but that could easily change, and it might have more weight in the future. Traditionally, Https was used only when sensitive information was being transmitted, for example, when completing online transactions (it is commonly used by ecommerce sites like Amazon). However, Google is calling for Https everywhere, meaning that it will likely become a stronger ranking signal.
How It Works
URLs that begin with Https are secured using a technology called Secure Sockets Layer (SSL), which encrypts data travelling between a web browser and a web server. In order for a website to use Https, they must first obtain an SSL Certificate, which can be purchased from most major web hosts. SSL Certificates serve to confirm identity and encrypt any data that flows to or from the website…”