Google is now sending out new Google Search Console messages for SSL/TLS certificate does not include domain name, or HTTPS mismatch errors. The first one was spotted and posted by Casey Markee on Twitter and it read.
Google has detected that the current SSL/TLS certificate used on [domain] does not include [domain] domain name. This means that your web site is not perceived as secure by some browsers. As a result, many web browsers will block users accessing your site by displaying a security warning message. This is done to protect users browsing behavior from being intercepted by a third party, which can happen on sites that are not secure.
Here is a picture:
Zineb from Google confirmed on Twitter, "we are now letting users know about issues with their TLS certs."
For more on the Google HTTPS topic click here.
Forum discussion at Twitter.