Google has taken a strict stance, to ensure that it protects the privacy of their consumers. Security, they say, has always been “a top priority” for them. So, in order to implement advanced online security, in 2014 – the search giant announced HTTPS as a ranking signal.
Here explains the benefits of switching your website to HTTPS and the potential challenges associated with it: http://neilpatel.com/2016/07/06/does-a- ... en-answer/