Webreg is a web-based application built for the use of current students of UCSD. The students use the online portal for registering for their online classes. The only limitation of the web portal is that it can be accessed only by the currently enrolled students and only during specific enrollment windows.
It is advised not to use the web application on your mobile phone because if you try to log in to the webreg portal through your mobile device, you might face trouble logging out of the webreg portal properly. You will be subsequently unable to log in; instead, you can use your laptop or PC to access the webreg.