Consistent Domains: If you type in www.example.com, but then your type in just example.com and the “www” does not redirect to www.example.com, that means the search engines are seeing two different sites. This isn’t effective for your overall SEO efforts as it will dilute your inbound links, as external sites will be linking to www.example.com and example.com.
Poor User Experience: Make it easy for the user to get around. Too many ads and making it too difficult for people to find content they’re looking for will only increase your bounce rate. If you know your bounce rate it will help determine other information about your site. For example, if it’s 80 percent or higher and you have content on your website, chances are something is wrong. https://businessinsightsbiz.tumblr.com/