How can you tell if this site is done with Drupal or Joomla

Is there a way to tell if this particular site http://www.datemyride.com is done with Drupal, Joomla or something else. Thanks.

 

That is Drupal.

 

Thank You!

 

If You want to know, try to login from user login link : To check is it drupal or not, add the following to your url : /user And
To check is it joomla or not, add the following to your url : index.php?option=com_user&view=login&Itemid=24 . Which link direct you to the user login form?

 

It's a drupal site:

Check:
http://datemyride.com/node/12
... it works!