What does Google consider mobile-friendly?

Mobile-friendly can mean many different things. This is probably why Google started by just demoting the worst offenders.

Right now, there’s no sliding scale. Your web pages are either mobile friendly or not mobile friendly.

You can see what Google thinks of your content by using the Mobile-Friendly Test tool. Enter a URL, click Analyze, and it will give you a green passing message or a red fail message.

It’s a good idea to check a few different pages such as your home page, a blog post, and any other pages with custom layouts or designs.

Another place to check if you have any major mobile issues is in Google Webmaster Tools (Now named “Search Console”).

Navigate to “Search traffic > Mobile usability”, and you’ll see any errors that you should fix as soon as possible.

Finally, Google has also released a useful mobile SEO guide. In it, it explains the most common mobile errors such as blocking javascript or messing up your mobile redirects.

On top of those mistakes, here are a few more general mobile-friendly principles to keep in mind:

  • Don’t use software that most mobile devices can’t render, e.g, Flash.

  • Re-size text box constraints to match the screen (i.e., responsive design)

  • Use text that is easily readable on a small screen (typically 16px or more)

  • Don’t put links right beside each other (hard to tap the right one)