Google adds the use of https (https) to its search engine signals. The move is designed to spur developers to use encryption to encrypt traffic. Some websites use an unencrypted connection to connect to their visitors. That means content is susceptible to a so-called man-in-the-middle attack. Google says it takes into account certain attributes, such as whether a page has unique content, to determine where it will appear in search rankings. It will be a “lightweight” one and applies to about 1 percent of queries now.”]