Off page seo is basically seo actions that are performed outside the area of the website or its webpage itself. Search engines use the mathematical algorithm (code) to match the word or key phrases of websites in database, with related information of user into the search field. This mathematical algorithm looks for specific data and returns the best match for user in search result pages which he is searching for. Off page seo is the task of obtaining inbound links from other websites or webpages which are themselves optimized and well ranked for the same keywords or keyphrases. When the search engines detect that there are inbound links to your website or its webpage that have similar topics to your website or webpages theme, they will use this data during the analysis to help determine relevancy to the users search.