We do not have such implementation for intranet websites. For public websites you can use our Analytics module which is integration with Google Analytics.
The options that I could suggest are
1. Create a control that you will put inside your master page. This control will persist data to your custom table each time someone view a page.
2. Create a custom HttpHandler. Sitefinity uses ASP.NET Routing Engine to handle requests. Currently there is some issues and Sitefinity route is catching all requests so it would be hard to specify it only for pages.
You might find this post
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