Recently Google announced that it is going to give higher ranking to websites that are mobile friendly. Not surprising since 60-80% of web access is done by people on mobile devices (phones and tablets) now, compared to desktops.
So now it is more important than ever to ensure that your website is mobile friendly. If it is not, you may not be appearing in your customer searches as often as you want.
Here are some great resources for you:
Test your website url with Google’s testing tool to check if it is Mobile Friendly
Another thing that may affect your search ranking: the speed of your site. Check it with this Website Speed Check Tool by Tapps. This will give you a grade (A, B, C etc) and brief info.
For more detailed information of your site speed, use the Google Pagespeed Insights tool. This one gives you information on how to fix any problems it finds.
Further reading: a great article by Tapps: How Fast is Your Website.