Google: Your Structured Data Should Match Visible Content

Google's John Mueller said that if you implement structured data on a page, that structured data should match the content visible on your page. The most obvious example is if you add review markup to your page but there are not reviews visible to the end user, that would be spammy structured markup.

Here is John's tweet:
















Of course, there can be some gray areas, which is why Google has some pretty detailed guidelines for when and how to implement structured data on your site.

Follow those guidelines or you can lose the ability for your site to show rich snippets in the Google search results.

Source: seroundtable.com