This is a great question to ask!  It shows that you are wise and aware of how to do commerce on the internet!

Yes, our donation page is secure – it just takes place behind the scenes.  The technical language is this:  “your information is being transported securely via SSL“

If you like, you can also donate to us using this page (which shows the “https” prefix):  https://league.edenprojects.org/donations/add