You can always use thatquiz.org with https.
Navigate to https://www.thatquiz.org
To make https automatic whenever you log in or your students test, go to Account Info and check the box for "Use https". We recommend checking this box.
Some schools block all https traffic. If your school does not allow usage of https web sites, then unfortunately you'll have to keep using http. If you try using https but get a blank page inside your school, you'll have to switch back to plain http.
