Improve Your URL Structure for Search Engine Optimization
If you can make your site with a logical and meaningful URL (web address) structure, all the better for search engine optimization (SEO).
A site's URL structure should be as simple as possible. Consider organizing your content so that URLs are constructed logically and in a manner that is most intelligible to humans (when possible, readable words rather than long ID numbers). For example, if you're searching for information about aviation, a URL like http://en.wikipedia.org/wiki/Aviation will help you decide whether to click that link. A URL like http://www.example.com/index.php?id_sezione=360&sid=3a5ebc944f41daa6f849f730f1, is much less appealing to users.
Your site should have obvious major subsections, which search engines interpret from the folders (real or virtual) on your site. For example, UUA.org/beliefs shows that "Beliefs" is a major subsection of the Unitarian Universalist Association (UUA) website, and it may be shown as a "sitelink" if it's determined to be relevant to the searcher.
If following this advice would mean reorganizing your whole site, be sure to review this Checklist for Changing Your URL Structure.
For more information contact firstname.lastname@example.org.