School Chromebooks are highly restrictive.
If the restrictions are network-based, switching the internet source can bypass them. proxy for chromebook school
If you need access to a specific site for educational purposes, the safest route is to ask a teacher or IT administrator to whitelist it. School Chromebooks are highly restrictive
On a personal computer, you can simply change the proxy settings in your browser. On a school Chromebook, this is usually impossible because: proxy for chromebook school
Note: Your school must have enabled Linux support in settings for this to work. It is usually disabled on student accounts.