SEO means search engine optimization. Or, optimizing your website to be able to be found with a search engine, ideally in the first or first few pages of a search result. The crucial aspect of SEO is attaining a high ranking. Ranking is similar to a point-score. And the score, or rank, is decided by the search engines on the basis of factors such as good and relevant site content, links from high-ranking sites, proper navigation and headings structure, correct and relevant page title tags and meta tags content. And much more.