Most professional websites have already implemented SSL on their website. Adding an SSL Certificate to your website automatically associates you with business professionals and gives you much more credibility as a business.
Because your SSL Certificate is specific to your domain and contains information associated directly with your domain, your visitors can be confident that you are who you say you are, and not an impostor pretending to be you in order to steal their confidential information.
Your mobile pages will load almost instantly via AMP (Accelerated Mobile Pages) technology. AMP technology is dependent on having an SSL Certificate.Since load time is an important ranking factor for Google, blazing fast load times will give your mobile site a big boost in ranking.
Your visitors can be confident that any information or data that they send or receive is exactly what was sent. They can rest assured that no one is able to hijack the information en route and modify it before it arrives.