In other words, the only way the search engine is going to find your Model3809.htm page is if you link it up. You know the model name and can create the URL without making another call to the database. Performance There are some obvious performance issues associated with this technique. First, it might require an extra database call to create the well-named URLs that don't exist. Finally, the two Server.
Transfers are expensive.
However, you can solve some of the performance problems using XCache. XCache will resolve the 404 URL to the right page and cache this information for later requests. Summary Create URLs that you can market and that work on search engines is fairly easy, if you don't have to create the directory structure and files that those URLs represent. Using IIS 5.0 Custom Error Page technology and handling the 404s can yield great pages names. The company's flagship products XCache, XBuilder and XTune provide Web developers and site owners with robust performance solutions that significantly improve site experiences for their end users.