Beginning early July 2018 Google will begin marking websites that are not using an SSL (Secure Socket Layer) as insecure.
Nobody wants their website marked as insecure! Dreaded. Never the less, websites that remain on the HTTP non-secure protocol will be flagged with a warning in the address bar.
Additionally,this non-secure flag will be built into the version release of Chrome 68, which will be ready for download in early July as well.
If your website still uses HTTP you’ll want to upgrade to HTTPS to prevent the flagging by Google.
Other reasons to get on HTTPS are as follows:
HTTPS can help with SEO
The security-savvy approach means that if your site and another site are comparable for top ranking on a particular keyword, the addition of HTTPS in your configuration could be enough to give you the advantage for a top spot. It’s understood that, a secure experience is generally preferred over a non-secure experience.
Accelerated Mobile (AMP) requires it
Google developed AMP to ensure that content loads fastest on mobile devices. AMP content appears prominently in the search results. AMP has an important role to play in optimizing for mobile and it needs HTTPS to function.