WordPress for beginners:

Google’s Sitelinks Searchbox, with or without Yoast SEO

A screenshot of the Sitelinks Searchbox report in Google Search Console showing 1.5k URLs without errors.

Check the Rich Results Testing Tool

Using Google’s Rich Results Testing Tool, you can see if your site is eligible for rich results. Simply open the tool, enter the URL and run the test. Google shows a report like the one below. In this case, it correctly discovers a sitelinks searchbox on our site.