"Starting April 21, we will be expanding our use of mobile-friendliness as a ranking signal. This change will affect mobile searches in all languages worldwide and will have a significant impact in our search results. Consequently, users will find it easier to get relevant, high quality search results that are optimized for their devices"
You may already have noticed the 'Mobile-Friendly' label that Google now affixes to responsive websites in Google's mobile search results - does yours?
In 11 days Google is going further - sites that are not mobile-friendly will see their rankings in the mobile search results drop.
Do nothing and you could lose traffic, enquiries and sales.
These changes only affect searches from mobile devices. Your rankings on desktop search will not change.
However as more and more people are using their smartphones to search online, share content on social media and open links in emails, it's something you can no longer ignore.
You can find out what percentage of your website traffic comes from mobile devices in Google Analytics. For many companies this will be between 20 - 30%.
Can you afford to lose a fifth of your traffic and possible enquiries?
One quick check every site owner should do today.
Simply enter your URL into Google's mobile-friendly testing tool and they'll tell you if your site is ready, or what changes are needed:
Alternatively if you are unsure about what to do please speak to your website developer.
James Fairlie is an SEO consultant at SupersizedSEO which is a member of the BCA.