Why Is Everyone Scrambling to Secure Their Site? The reality is, hosting an insecure site just isn’t good enough. Google ranks insecure pages (HTTP) worse than secure pages (HTTPS). Your visitor’s browsing activity and data isn’t encrypted or protected Chrome and Firefox are adding scary visual cues to punish insecure sites. That means, even non-technical folk are now receiving in your face warnings that your site is dangerous to view.
Sitepoint | 11.08.2017 / Securing Your Website with HTTPS Is More Important than Ever
Wikipedia - Let's encrypt
HTTPS: just a Google ranking signal?