The document discusses search engine optimization (SEO) issues and how to diagnose them using Microsoft's Live Search Webmaster Tools. It provides an overview of how search engines work by crawling websites, ranking pages, and displaying search results. Common SEO issues involve pages not being crawled or indexed properly, low rankings, and problems with the search engine results page (SERP). The Live Search Webmaster Tools can help identify and fix issues with crawling, ranking, content, and SERPs.