In case you haven't heard, Google will be releasing a new mobile-friendly ranking algorithm on April 21st. The mobile-friendly algorithm will affect how websites get ranked on mobile devices.
According to Google Webmaster Tools notifications, "these pages will not be seen as mobile-friendly by Google Search, and will therefore be displayed and ranked appropriately for smartphone users". Translation: If you don't have a mobile-friendly site then you're likely to drop significantly in Google's mobile search results.
What does this mean?
In our opinion, this algorithm change will have a much greater impact than the previous Google Panda and Penguin updates. Panda and Penguin primarily penalized sites for web spam and blackhat SEO practices. Panda and Penguin impacted all search results, but the number of sites that were impacted was relatively low. This mobile-friendly algorithm will significantly impact mobile search results for all businesses that do not have mobile-friendly sites. If you fall in this category, then you run a real risk of losing 40-50% of your organic search traffic. Ouch!
What should I do next?
If you have a mobile-friendly or responsive site, then you don't need to do anything. In fact, you are likely to experiece an uptick in traffic at the expense of websites that are not mobile-friendly. On the otherhand, if your site is not mobile-fiiendly then you need to move fast - if organic search traffic is important to you. There is still time to get things in order before the update occurs on April 21st.
If you're not sure how your site is viewed you can run a simple check usnig Google's Mobile-Friendly Test. The test will analyze a URL and report if the page has a mobile-friendly design.