1) Web Page URL
The address should begin with https://websso.um.edu.mo (Single Sign-on) or https://websso1.um.edu.mo (No Single Sign-on)
2) Address Bar
You can also see a padlock symbol next to the address bar.
Sample Screenshots for https://websso.um.edu.mo, there is a “Single Sign on” wording highlighted with orange in the login area. For some browsers, the word “University of Macau [MO]” will be shown in the address bar.