An outdated website is a warning sign to consumers. It signals that your business is anachronistic, that it has failed to keep up with advances in your industry. It is therefore necessary to upgrade your website every couple of years, and to adopt the lessons learnt in website development.
For instance, a site that isn’t optimized for mobile devices has no chance of surviving now. More than half of web traffic and ecommerce purchases are now made through smartphones. So if your site is too cumbersome on smartphones, you won’t only have a higher bounce rate, your brand will be seen as outdated.