Licensing FAQ. The Drupal Association has provided this FAQ to help clarify legal matters surrounding the licensing of the Drupal Project and the GNU General Public License.
Our thanks to the Software Freedom Law Center for their assistance in preparing this FAQ. 1: What is the license for Drupal? Drupal and all contributed files hosted on Drupal.org are licensed under the GNU General Public License, version 2 or later. How do I Find the PR (Page Rank) for my Page? Handy FAQ.