Schema checkers are tools to test out whether the deployment of Structured data is done in the right way, what kind of category it represents, and is it error-free?
Structured data testing is the part of website development that ensures good representation on search engines to not only increase the user engagements but also let search engines to get understand and crawl webpages in a better way.
For example- in Google Search Engine Results Pages (SERP) you often have seen recipe article results along with the feature image, time, and quick glimpse of methods, the author is about to discuss in it. Not only in Recipes but for books, reviews with ratings, author name and price, etc. This all also known as rich snippet which describes the content of a web page in search engine’s results to users without actually opening it. It also helps them to decide which page would have a better answer to their query.
Now, all this is a work of Structure data which almost every website codes…