Use router or DNS parental controls to block youtube.com and ytimg.com
Add YouTube to blocked sites in your browser settings or extensions
Set up device-level parental controls on Windows, macOS, iPhone, or Android
Use a firewall or security app to block YouTube domains
Edit the hosts file to redirect YouTube domains to localhost
Use SafeSearch and restricted modes where available
Remove or disable the YouTube app on mobile devices
Set up account-based supervision or family controls
Block YouTube through your organization’s network policy
Use a website blocker extension or app with a password lock