Send your current page to Google Mobile Friendly Test tool to verify if it is Mobile-Friendly, if it is responsive web design.
Clic and your current page is SENT to Google Mobile Friendly test.
A good way to validate the Responsive Web Design of a website by Google and to make sure your site's ready for mobile-friendly Google search results.
This tool will analyze a URL and report if the page has a mobile-friendly design.
This extension is a QUICK ACCESS to it.