There are many reasons why you may want to block certain websites — or only allow specific ones — in your browser. The most common reason is that your impressionable young children shouldn’t be exposed to sex, violence, and social media. The next common reason is productivity. Perhaps you can’t get any work done due to your obsession with checking Facebook every five minutes? Whatever your reason for blocking websites, it can be easily achieved if you’re using an Apple device. Here’s how to block a website on Safari.