This document discusses SEO (search engine optimization) for Drupal websites. It begins with an overview of SEO and the SEO process, noting it is a long-term strategy versus paid search. The document then notes Drupal 7 and 8 cores include only basic SEO features. It outlines several modules that can be installed to improve SEO, such as for XML sitemaps, URL structures, title and meta tags. It stresses SEO should be considered from the start of website development for best results. In conclusion, SEO requires expertise and an evolving understanding of techniques.