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I'm assisting evaluating 5 different CMS solutions for a client. As a part of this evaluation, I want to ensure we fully explore the SEO capabilities and short comings of the different platforms. Which factors would you recommend we consider? Currently, I'm thinking: custom URLs custom page titles, meta data, etc automatic sitemap updates customize robots/indexing settings site load times rel canonical support code & css quality 301 redirect functionality What else should be on this list? Is there anything on my list that you would de-prioritize? At risk of making this question too large: any opinions out there on what the most SEO friendly CMS systems are?