3 reasons why your website doesn't generate enough new clients

It was a long, long time ago that websites served only as a kind of ad or as a simple catalogue of products. Since then, websites have turned into an interactive tool for not only engaging clients, but also calling for action and mediating contact between companies and prospects. The primary aim of websites is not informing prospects, but generating leads. However, many websites still have a lot of work to do in this sense. If we leave aside the issue of visit rates (and we assume that you've already solved things like search engine optimization), what are the most common problems of websites that don't generate the expected number of leads?