Its easy to create a correlated view, where you can see both your server details overlaid with your website(s) or your website details, overlaid with your server(s).
Just tag the servers and websites that you want to correlate the same. Use simple tags such as web or api. You can then see this in the Details views (bottom right button on the widgets) in the Systems or Probe tab.
Remember, you can monitor websites, web services or TCP ports with RevealUptime website monitoring (Probes tab)