Why does'nt google index all the pages of a website. It shows some of the pages as supplemental results.vjjohnson04 wrote:Supplemental results are a warning about duplicate content on your site. You can check those results by entering in the syntax [site:www. domain.com ***] in Google search box.To get your pages out of them, you need to make sure that every page on your site has unique content and provides excellent and relevant information, has a unique title and a unique meta description. Also make sure that every page of content has only one URL that can access itSupplemental results is about on your duplicate content. You may check this link diagnostics.googlerankings.com about google supplementalMaybe you have a duplicate content. Check it, remove the duplicate pages or you have pages that are same content with others.