How to get it back the schema on the search that suddenly lost?
JOHN MEULLER (Webmaster Analyst from Google):
So this is something that can happen from time to time. So I assume with schema, you mean rich snippets markup, if that’s shown in the search results. And from our point of view, we have three criteria that we use for rich snippets. On the one hand, it has to be technically implemented correctly. I assume, if this was working earlier, then that’s the case here. On other hand, it has to be kind of policy conformed. So you need to make sure that whatever markup you’re using matches the policies we have for that markup. So if you’re using recipe markup, don’t put it on pages that aren’t recipes. That’s a kind of simple one. And the last one is usually the hardest one, is that we require a certain quality threshold of a site in general to display those rich snippets. So we kind of want to make sure that we can really trust this website, and that we would be OK with showing those rich snippets. And sometimes we re-evaluate sites and our algorithms say, this wasn’t really as fantastically high quality as we thought before. And that’s something that might be reflected in whether or not the rich snippets are shown or not. So if you’re sure that technically it’s correct, it’s correct from a policy point of view, then you might need to take a step back and think about what you can do to significantly take your site to a higher level from a quality point of view.