Magento supports search engine friendly e-commerce applications.
The Search Engine Optimization for Magento can be enabled through the script admin area -> System -> Configuration -> Web -> Search Engines Optimization
In the URL Options it is recommended to turn off the Add Store Code to Urls function (it is set to No by default).
Also, Magento installation set the default page title to Magento Commerce. Pick a more descriptive one and change it from the script admin area ->System -> Configuration -> Design -> HTML Head.
Enter the new one in the Default Title field. It will be used for pages without custom title. If you want your store name to appear in all page titles put it in the Title Suffix field.