It’s rare that Google reveals any of its actual ranking factors, so it came as a big surprise when representatives announced they would reward sites using HTTPS encryption with a boost in search results.
HTTPS isn’t like other ranking factors. Implementing it requires complexity, risks, and costs. Webmasters balance this out with benefits that include increased security, better referral data, and a possible boost in rankings.
The Big List of SEO Tips and Tricks for Using HTTPS on Your Website
