Drupal is opensource and doesn't require a licence. It can also be hosted on premise or in cloud. My org uses a multisite setup of Drupal. https://www.drupal.com/
Yea, if you're just checking based on the 7.32 version I don't think your results would be accurate. There are sites that applied that patch to their 7.X version.
It looks like I can't book a flight. "BUMMER. NO FLIGHTS ARE AVAILABLE FOR THIS DATE. PLEASE TRY ANOTHER DATE." Am I supposed to keep clicking around until I get something? Can I see a listing of "Available flights on the calendar." I tried booking DCA to SAN.
Arlington,Bethesda, and DC are some of the worst violators of this. Don't even get me started on those machines they use to "enforce" the speeding law.