why not use a IP Converter to change the domain to its IP?
most schools (certainly not mine) do not block this method
Simple search google for IP Converter i think the link is something like darkweb.org not too sure and its a simple box
type in for example
http://mess.be and it will display a set of numbers (for example 123.123.123.333) then go to your Address bar and type in
http://123.123.123.333 or whatever the number it gives you is