Structured data and the Schema.org initiative rely on "promoting schemas for structured data on the Internet, on web pages, in email messages, and beyond." Schema.org helps search engines to display more informative results in SERPs and improve user’s experience. While there is no direct correlation between those data and a SEO improvement, Schema.org can really help you boost your visibility in SERPs.
Those codings help search engines to understand what your content is about. If you deal with organisations’ reviews for instance, you could get a nice rich snippet in SERPs using the Ratings or Organisation markup. Here's the list of types of mark-up officially supported by Google.
Because of how it attracts attention in the SERPs, using structured data can thus improve your click-through rate.
We want to help you improve your rankings and you performance. That’s why we have integrated a structured data analysis.
In the Crawl Report, navigate to HTML tags, then Structured data.
You can now see your structured data distribution:
You can easily see the proportion (and the number) of pages on your site that contain structured data, and the average number of items per page. If you click on a specific number, you will access the list URLs.
You will also find the repartition of structured data per page groups. Those insights can help you understand if you should improve your structured data repartition by page priority.
Best practices for structured data
Some of the best practices for structured data include:
Use structured data to earn rich results features on landing pages to increase click-through rates (CTR)
Use structured data to help Google understand what your pages are about
Use structured data to have your pages included in Google results features such as FAQ pages, How-to results, Job Listings, and more
Refer to Schema.org standards for the types and properties of structured data
Respect Google's required properties for structured data that Google supports