AltaVista's software development kit can help you automate the process of turning database content into static, indexable pages. Dynamic pages also block Web crawlers. While it's great to give visitors unique experiences, tailored to their needs, the techniques you use to do that could stop search engines from indexing your content and hence could greatly reduce your potential traffic. Dynamically generated pages are created on the fly from a variety of elements held in databases. By the way, this is one reason why nobody can say how many pages there are on the Web, total.
Every dynamic site has potentially an infinite number of pages.
If you have information inside frames , that will probably prove to be a hindrance, but is not an absolute barrier. AltaVista indexes the outside of the frame as a distinct page. It will also index each pane of the frame window as a separate page. That means that if the content matching a query is in a pane, when visitors clicking on those links will see only the pane, not the full page as it was originally designed. AltaVista also can't index text that is embedded in graphics .