What is Hosts Editor?Hosts Editor is a way to add, remove or comment out entries in the hosts file. The hosts file allows the user to override an IP address of a specific url.
Since the Hosts Editor edit the hosts file, root permission is required.
How to Block Websites with Hosts Editor
Go to Google Play Store to download and install Host Editor on your Android device
After successful installation, start the application and select ‘New Entry’ from menu
Type 127.0.0.1 in the IP address box
In the Host Entries, input the web address you wish to block (e.g. sito.com) and then click ‘Save New Host’ to save the file.