As many as 40% of websites will feel the pinch today as their mobile “unfriendly” websites stop showing up in searches.

Today, Google launches its new web search and ranking algorithm Panda. A Google algorithm is the formula that Google uses to match an internet user’s search term with websites that are likely to provide the information they’re looking for.

And with nearly 50% of internet users searching from their phone or tablet, it’s more important than ever for the websites they visit to be friendly – or to automatically adjust to the size of the phone or tablet to be easy to read, share, and buy from.

Is your website friendly or responsive?

Test your website here.

Sources: New York Times, USA Today, Business Insider