Businesses in the UK are neglecting the needs of consumers accessing websites from mobile devices, according to research released today by 1&1 Internet Ltd.

The data revealed that 53% have never checked the appearance or functionality of their website for Smartphone users. From companies that have, 41% admit their website has a reduced appearance and 36% offer reduced functionality.

Three-quarters of firms have not optimised their websites for mobile usage and have no plans to do so. Despite widespread adoption of mobile browsing by Britons, the data reveals less than one in four firms recognise that their sales or brand could be enhanced with a more mobile-friendly website. Many companies could be alienating mobile online consumers and risking their own growth.

"Many websites have not yet reached the Smartphone age. As a result, small firms in particular can miss a massive opportunity. Businesses must ensure that when their website is viewed on a mobile, it loads promptly, functions correctly and comprises an attractive and fitting representation of them," said Oliver Mauss, CEO of 1&1 Internet Ltd.