Many websites today use a content management system; there are good and bad content management systems. A good content management system will help your SEO efforts a bad one will not.
For example, let’s say you want to buy a new hot tub cover. In your search engine efforts to located a quality cover you find the following 2 websites
www.website.com/hot-tub/covers.html
-and-
www.website.com/dis/product.php?=35934&id=847
In both cases these URLs are generated by the website’s content management system. It’s pretty easy to tell, the search engine friendly one also happens to be the user friendly one as well.
If you select a good content management system you can address both site and individual page issues that have an effect on the search engines capability to crawl though your website. Although there are a lot of things to consider when selecting a content management system, search engine optimization should be one of those things.