The purpose of the website audit is to evaluate the ergonomics, design and commercial and marketing efficiency of a website. It is usually based on an analysis of the following: The functionality of the website? the ergonomics and design of the website? SEO of the website? Source code ? the position of the site in the search engines? the content of the website This analysis will establish actions to implement to address this by focusing on natural referencing or referencing by social media. SEO is a set of techniques to position a site in search engine results to increase its visibility, its popularity on the internet. SEO by social media (SMO-Social Media Optimization) or social SEO is a set of methods to attract visitors to