Last week, Google introduced a way for you to add markup to your site so that you can communicate to Google what the name of your site is. This site name markup would be displayed in the mobile results in place of the URL.
Some SEOs feel this is way too easy to fake and manipulate. Here are some tweets with those concerns:
Truth is, the previous version of breadcrumb URLs, even without the markup, was exploited and Google removed it.
In any event, Google said they are using this as a hint and if the hint doesn’t match reality, they won’t use the hint. Here is how Gary Illyes responded on Twitter:
Forum discussion at Twitter.