If you search some specific words like “Apple pie”, Google will show some different results at the first several lines, like this:
You can find out these results contain some extra contents, like rating, votes, time, and cal, Google must know these results are recipes. But how can they know? Using some deep learning algorithm? No, this is all about structured data.
In Google IO 2017, they have a talk about structured data.
Google support a lot of structured data.
- Format is Microdata
- Google support a lot type of structured data of enhancements, like Breadcrumbs, Corporate Contacts, Galleries and Lists, Logos, Sitelinks Searchbox, Site Name, Social Profile Links, and a lot of content types, Articles, Books, Courses, Datasets, Events, Fact Check, Local Businesses, Music, Podcasts, Products, Recipes, Reviews, TV and Movies, Videos. you can find details at Search Gallery.
- Want to know how to use it, you can see Introduction to Structured Data.