Students will access DRC’s online test engine from the following public URL/link:


The URL must be copied/pasted or entered exactly as it appears in a Google Chrome internet browser. The link will not work if it is bookmarked within the browser to use for continued testing of the CDTs. Students must use the public URL to access the at-home CDT tests. After your student has launched the test engine on the computer, he/she can use the school-provided username and password (test ticket) to access and complete the assigned CDT test.


Google Chrome is the required internet browser for accessing the at-home version of the Classroom Diagnostic Tools. The test software will not function on any other internet-browser platform. Chrome is a free browser. Step-by-step instructions for downloading a Chrome browser to a computer can be accessed from the following link/URL: