One of the most common questions we get at Drupal beginner classes is, "How can I tell if a site is built in Drupal?"
We get that question because it's just not possible to know the answer without a few tips and tricks.
If you look at a website such as WhiteHouse.gov, there is no way of telling if it's built Drupal. The design of a site is completely independent from the platform it uses.
We're going to give you 5 ways to tell if a site is built in Drupal. Not all of these suggestions will work on all Drupal sites, but taken together they should give you a clear answer.