Hosting SEO is not just increasing the chances of your visibility of your website but also to make your site a more SEO friendly one or in simple terms, making your site more friendly when it comes to search engines. Search engines have some set of expectation that has to fulfilled to make you site to find top positions during the search sessions.
For this your site has to be reliable, which means that your site has to have a high uptime so that you are always on the top of the search result. Next you will have to ensure that your page has a fast page load time to avoid unnecessary and irritating wait times and designing your website in such a way that it contains meta tags that explains what your website is all about.
Once your website satiates all these requirements, then your site can be approved of being a SEO friendly site.