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Technical Requirements

CTY Online Programs use many web technologies. Fast internet access (at least 5 Mbps) is required; online lessons operate poorly on slow connections.

All of our courses require familiarity with standard computer operations (e.g. browsing, email attachments, cut and paste). Most course documents are in Adobe PDF format.

Some courses use MP4 video and/or HTML5 interactivity, which require an up-to-date web browser. Many others use the Flash plugin, which runs on most computers but not mobile devices such as the iPad. In some cases, assignments and quizzes must be completed on a desktop or laptop computer. A few courses also use other software, such as Java applets; if so, your course will provide installation instructions. Note for international students: most of our courses require the US-English character set.

Specific hardware and software requirements are detailed under the Technical Requirements tab on each of our course description pages; please refer to them before applying.

Web Browser

Any standards-compliant web browser should work with our courses, but if a particular course does not work with your preferred browser or device, you may need to install a different one. Internet Explorer, which is no longer supported by Microsoft, will probably not work with our courses. Please use Firefox or Chrome. You will need to allow popup windows, cookies, and other content from our course sites.
If you prefer custom browser settings and third-party add-ons (such as plugins, toolbars, or BHOs), you must ensure that they do not interfere with the operation of our courseware. Some frequently-installed extensions (such as Ask Toolbar or Skype Click-to-Call) have caused conflicts with our online courses.

Email Account

  1. Students in our online courses must be able to communicate with their instructor via email.
  2. Filtering software (such as parental controls or spam blockers) must allow connections with,, and other domains as specified by the course.
  3. Frequent changing of student screen name or email address is inversely proportional to success. If your email address changes during the course, update it in MyCTY and notify your instructor.

If you use Microsoft Windows...

In addition to Microsoft Automatic Updates, we recommend that you install one utility from each of the following categories and keep them updated. Warning: if the installer offers to bundle any toolbars or other extras, do not install those.

  1. Antivirus protection, such as Avira or Windows Defender (built-in).
  2. Spyware removal, such as MalwareBytes free.
  3. Windows tuneup, such as CCleaner free.

If your computer has internet security software that goes beyond antivirus (e.g. a security "suite") you may need to reconfigure it to allow our courses. Security software must not block access to,, and other domains as specified by the course. If you use Internet Explorer browser, *://* should be in the Trusted Zone.

If your computer currently has Windows 8 or lower, please review your course's specific system requirements before upgrading it to Windows 10.

If you use Mac OS X...

In addition to Apple Software Updates, we recommend that you install one utility from each of the following categories and keep them updated:

  1. Antivirus, such as Avast or Avira.
  2. Mac tuneup, such as Maintenance.

Mac users should also install Adobe Reader. Apple's sometimes has trouble with fillable PDF forms.

General Technical Support

If you have technical problems of any sort, please contact your instructor and fill out the Tech Support Request Form.


Online Programs News and Deadlines