Sign up for FREE Earth Day projects for your classroom! Limited seats available.
Request Access
< Support

URL Approval List

Last updated: 
3/14/24

If your school uses a firewall or blocks certain domains, you'll need to allow certain URLs to ensure Hello World CS works as it should. Visit the Hello World CS Network Access Requirements page to see a full list.

How to Resolve:

Contact Us

Need additional help?
Contact us for support!
Contact Support