 Today's question comes from Abhishek. Abhishek is asking if you need to use structured data exactly as specified in the Google Developer documentation, or if you can add more properties from schema.org. Google uses structured data in search for both supporting rich results types as well as for better understanding the pages themselves. With that in mind, in order to be eligible to be shown as a rich result, you need to make sure that the page uses the right structured data and that it complies with the appropriate policies on our side. However, even without the structured data leading to rich results, our systems profit by understanding the pages better when they use structured data. Also keep in mind that it's not guaranteed for us to show these rich results just because a page uses the appropriate structured data. So in short, if you're aiming to be eligible for a specific rich results type in Google Search, then you should definitely watch out for the requirements. Independently, you're always welcome to use structured data to provide better machine-readable context for your pages, which may not always result in visible changes, but can still help our systems to show your pages for relevant queries. For more information about structured data in general, check out the links in the description below, and don't forget to submit your question using the hashtag Ask Google Webmasters on Twitter.