Lockdown Browser is a custom browser that locks down the online testing environment within a learning system. When students use LockDown Browser with an online test, they are unable to print, copy, go to other websites, access other applications, or close the test until it is submitted for grading. Tests created for use with LockDown Browser cannot be accessed with standard browsers, either. 

When LockDown Browser is used with "Instructor Live Proctoring," the instructor watches students remotely during an online test. This feature requires the use of a video conference system such as Blackboard Collaborate, Microsoft Teams, or Cisco Web Ex. It is intended for small classes where the instructor can view all students on the screen at once. Typically 25 or less students.