Edit the hosts file and map the website domain to 127.0.0.1 or 0.0.0.0
Use parental control or content filtering features on your router
Add the sites to a browser extension blocklist
Configure DNS filtering with a service that supports domain blocking
Set up firewall rules to block the website domains or IP addresses
Use a local filtering app or security software with website blocking
Block the sites through device-level screen time or family safety settings
Restrict access with proxy or gateway filtering on the network
Remove admin rights so users cannot change the blocking settings
Test the block from the target device after applying it