How to Block a Website on a Mac: A Comprehensive Guide

Welcome Mac users!

Are you tired of constantly getting distracted by social media or other time-wasting websites while you’re trying to work or study on your Mac? Do you want to limit access to these sites and increase your productivity? Well, you’re in luck! In this article, we will teach you how to block a website on a Mac in 12 easy steps.


Step 1: Open the Terminal Application

To get started, open the Terminal application on your Mac. You can find it in your Applications folder under Utilities, or by using Spotlight search.

Step 1.1: Use Spotlight Search

You can use the Spotlight search by clicking on the magnifying glass icon on your menu bar or by pressing Command + Spacebar on your keyboard.

Step 1.2: Open the Terminal Application from Your Applications Folder

Click on your Applications folder in your Dock or through Finder. Go to the Utilities folder and double-click on Terminal to open it.

Step 2: Type the Command to Edit Your Hosts File

Once you have the terminal application open, type in the following command to edit your hosts file:

Step 2.1: understand the Hosts File

The hosts file is a local file on your Mac that stores domain name and IP address mappings. By editing this file, we can block access to certain websites on your Mac.

Step 2.2: Type the Command

sudo nano /etc/hosts

Step 3: Enter Your Admin Password

After typing in the command, you will be prompted to enter your admin password. This is necessary as the changes you will be making require administrative privileges.

Step 4: Locate the “Localhost” Section

Once you have entered your password, you will be taken to the hosts file. Use your arrow keys to locate the section labeled “localhost”.

Step 4.1: Understand the Localhost Section

The localhost section contains mappings that allow your computer to refer to itself by the name “localhost”. Any mappings you add to this section will take effect only on your local machine and not on external servers.

Step 5: Add the Website You Want to Block to the Hosts File

To block a website, we need to redirect its URL to the “localhost” IP address. To do this, add the following line to the “localhost” section:

Step 5.1: Change “” to the Website You Want to Block

To block a different website, simply replace “” with the URL of the site you want to block.

Step 6: Save the Changes to Your Hosts File

Once you have added the website you want to block to the hosts file, save your changes by pressing Control + O followed by Enter.

Step 6.1: Understand the Control + O Command

The Control + O command tells the nano text editor to write the changes you made to the file.

Step 7: Exit the Nano Text Editor

After saving your changes, exit the nano text editor by pressing Control + X.

Step 7.1: Understand the Control + X Command

The Control + X command tells the nano text editor to exit and return you to the terminal command prompt.

Step 8: Flush Your DNS Cache

Before the changes you made to the hosts file will take effect, you need to flush your DNS cache. To do this, enter the following command:

sudo killall -HUP mDNSResponder

Step 8.1: Understand the mDNSResponder Command

mDNSResponder is a system process that handles domain name resolution and DNS caching on your Mac. By killing and restarting this process, you are forcing it to use the updated hosts file and flushing your DNS cache.

Step 9: Test the Website Blocking

After flushing your DNS cache, try to access the website you just blocked by typing its URL into your web browser. You should not be able to access it.

Step 10: Repeat for Additional Websites

If you want to block more than one website, simply repeat the process starting from Step 4 for each additional site.

Step 11: Remove Website from Hosts File to Unblock

If you want to unblock a website that you have blocked, simply remove the line for that site from the “localhost” section of the hosts file and save your changes.

Step 12: Restart Your Browser

After unblocking a website, you may need to quit and restart your web browser for the changes to take effect.


Blocking websites on your Mac can be a great way to increase productivity and avoid distractions. By editing your hosts file, you can redirect the URLs of specific websites to the “localhost” IP address, effectively preventing your web browser from accessing them.

The hosts file is a text file that contains mappings of domain names to IP addresses. It’s used by your Mac’s operating system to translate human-friendly URLs into the numeric IP addresses used by web servers.

By adding a line to the “localhost” section of the hosts file that maps a website’s URL to the IP address, we can trick our browser into thinking that the site is hosted on our local machine. This effectively blocks our Mac from accessing that website.

By following the steps outlined in this article, you can easily block any website you wish to avoid on your Mac. If you find yourself needing to unblock a site later, simply remove its line from the hosts file and restart your web browser.

Tips and Tricks:

Tip 1: Use Wildcards to Block Multiple Sites

If you want to block multiple sites that share a common pattern in their URLs (e.g. all social media sites), you can use a wildcard instead of specifying each site individually. Simply use an asterisk (*) as a placeholder for any characters in the URL. For example, “ *” would block access to all Facebook subdomains.

Tip 2: Keep a Backup of Your Hosts File

The hosts file is an important system file that can affect the way your Mac operates. Before making any changes to the file, be sure to create a backup copy in case something goes wrong. You can do this by copying the file to a different location or simply renaming it.

Tip 3: Use Third-Party Apps for Easy Website Blocking

If you find the process of editing your hosts file too complicated, there are several third-party apps you can use to easily block websites on your Mac. These apps typically provide a user-friendly interface and customizable options for blocking specific sites or whole categories of sites.

Tip 4: Use Time Management Apps to Stay Focused

In addition to blocking specific websites, you can also use time management apps to help you stay focused and productive on your Mac. These apps typically allow you to set goals, track your progress, and receive reminders to take breaks or switch tasks.

Tip 5: Use the “Parental Controls” Feature to Block Sites for Kids

If you want to block certain sites on your Mac for your kids or other family members, you can use the built-in “Parental Controls” feature. This allows you to restrict access to specific websites, apps, and even the entire internet on your Mac. You can set up separate user accounts with different permissions and easily disable the parental controls when needed.

Tip 6: Use Browser Extensions for Specific Site Blocking

Some web browsers, such as Google Chrome and Mozilla Firefox, offer extensions that allow you to block specific websites. These extensions typically provide easy-to-use interfaces and customizable options for blocking or unblocking sites. Keep in mind, however, that these extensions only affect the browser in which they are installed and not the entire Mac system.

Tip 7: Use Apple’s “Screen Time” Feature on macOS 10.15 Catalina or Later

If you have a Mac running macOS 10.15 Catalina or later, you can use the built-in “Screen Time” feature to track and manage your device usage. This allows you to set limits on app and website usage, control access to specific apps and features, and monitor screen time for multiple users on your Mac.

Tip 8: Set Goals and Reminders to Stay Focused

One of the keys to staying focused on your Mac is to set clear goals and reminders for yourself. This can help you prioritize your tasks and avoid getting sidetracked by distractions. You can use apps or built-in features like Apple’s “Reminders” app to set tasks, deadlines, and notifications for yourself.

Tip 9: Use Keyboard Shortcuts to Stay Efficient

The Mac operating system offers a wide range of keyboard shortcuts that can help you stay efficient and save time. By getting familiar with these shortcuts, you can perform common tasks more quickly and easily, without having to navigate through menus or click buttons.

Tip 10: Take Regular Breaks to Avoid Burnout

Finally, remember to take regular breaks throughout the day to avoid burnout and reduce stress. Studies have shown that taking breaks can actually increase productivity and creativity, so don’t feel guilty about stepping away from your Mac for a few minutes every now and then.

Advantages and Disadvantages of Blocking Websites on a Mac

Blocking websites on a Mac can be beneficial in certain situations. However, there are also some drawbacks to consider. Let’s explore the advantages and disadvantages of this practice.

Advantages of Blocking Websites on a Mac

1. Increases productivity by limiting distractions
2. Helps to establish good browsing habits for children
3. Increases security by preventing access to potentially harmful websites
4. Helps to reduce the risk of malware and viruses
5. Provides a sense of control over internet usage
6. Maintains focus on important tasks
7. Assists in avoiding procrastination
8. Protects sensitive information by restricting access to certain sites
9. Supports healthy internet habits and overall well-being
10. Reduces exposure to inappropriate content

Disadvantages of Blocking Websites on a Mac

1. Limitations on freedom of access
2. Can cause frustration and resentment towards the blocker
3. May not effectively address the root cause of internet usage issues
4. Can be easily circumvented
5. Potential for over-reliance on blocking software
6. May lead to feelings of isolation
7. Difficult to block specific pages and websites
8. Can create a negative impact on work-life balance
9. May not apply to all devices or internet connections
10. Some websites may need to be accessed for legitimate reasons

Blocking websites on a Mac can be an effective way to increase productivity and establish healthy internet habits. However, it is important to consider both the advantages and disadvantages before implementing this practice. Ultimately, the decision to block websites should be based on individual circumstances and needs.


1. Why do I need to block websites on my Mac?

Blocking websites on your Mac can be useful to prevent distractions while working or studying, or to protect children from accessing inappropriate content.

2. Can I block a website permanently?

Yes, you can block a website permanently by adding it to the hosts file on your Mac.

3. How do I access the hosts file?

You can access the hosts file by opening Finder, pressing Command+Shift+G, and typing “/private/etc/hosts” in the Go to Folder box.

4. Can I block multiple websites at once?

Yes, you can block multiple websites at once by adding them all to the hosts file.

5. How do I add a website to the hosts file?

You can add a website to the hosts file by opening the file in a text editor and adding a new line with the IP address followed by the website domain.

6. What is the IP address format?

The IP address format is a series of four numbers separated by periods, such as “”.

7. How do I find the IP address of a website?

You can find the IP address of a website by opening the Terminal app and typing “ping”. The IP address will be shown in the output.

8. Can I use a third-party app to block websites?

Yes, there are several third-party apps available that can help you block websites on your Mac.

9. How do I find third-party apps?

You can search for third-party apps on the App Store or on popular websites such as CNET or Softonic.

10. Are third-party apps safe?

Most third-party apps on the App Store are safe, but it’s always a good idea to read reviews and check the developer’s website before downloading a new app.

11. Can I unblock a website that I blocked?

Yes, you can unblock a website that you blocked by removing the corresponding line from the hosts file or by disabling the blocking feature in the third-party app.

12. Can I block websites on other devices?

Yes, you can block websites on other devices such as iPhones or iPads by using the built-in parental controls or third-party apps.

13. Can I block websites on a shared computer?

Yes, you can block websites on a shared computer by adding them to the hosts file or by using a third-party app that supports multiple user accounts.

How to Block a Website on a Mac

Mac users may want to block certain websites for various reasons, such as to prevent distractions, protect their privacy, or control their children’s internet access. Fortunately, there are several ways to block websites on a Mac, ranging from using built-in features to installing third-party software. In this article, we will discuss some methods that you can try.

Conclusion and Closing

We hope that this article has been helpful in showing you how to block a website on a Mac. Whether you prefer to use parental controls, hosts file, or browser extensions, each method has its own advantages and disadvantages. Now that you know how to block websites, you can have more control over your online activities and avoid unnecessary distractions or risks. However, remember that blocking websites may not always be the best solution, and there may be times when you need to access certain sites for work, research, or entertainment. Therefore, use these methods wisely and responsibly, and always prioritize your online security and productivity. Thank you for reading, and see you next time!