There are many reason why you need to know how to block a website. Some of the most common reasons are you have been targeted by spammers who use adware and popups to attack your PC. Other reasons may be to prevent your children from having access to certain site content such as porn and gambling.

Depending on the level of security you wish, learning how to block a website may require a adjustments of your web browser, the use of internet filtering software or editing of your host file. At any...