Visit 5 other sites that you normally frequent using “http” to get there, but this time use the “https” prefix instead. Complete the table in the worksheet as you go. If HTTPS is not supported, then a certificate will not be available to investigate. An answer of “Depends” should be given if the site only supports HTTPS sometimes. For example, some websites support HTTPS only when you want to actually buy something, such as hitting the “check out” button.