Basic Drupal SEO Tutorial: On-site Optimization. Summary Enable Clean URLsEnable Path Module and install and enable Pathauto, Global Redirect and Token Modules.Configure the Pathauto ModuleInstall and enable the Meta Tags Module.Install enable the Page Title ModuleDo NOT install the Drupal Sitemap Module.Fix .htaccess to redirect to "www" or remove the "www" subdomain.Fix your theme's HTML headers if they aren't rightRecommended: create a custom front pageModify your robots.txt file.
Enable clean URLs.