How to block a website in your web browsers (Chrome and Internet Explorer)

To block a website on web browsers like Google Chrome, Firefox, and Internet Explorer in a Windows system, you can modify the system's hosts file. This method works by redirecting website requests to your local machine.

How It Works

The hosts file acts as a local DNS lookup table. When you add an entry like 127.0.0.1 website.com, your system redirects that website to your local machine (127.0.0.1), effectively blocking access.

Step-by-Step Instructions

Step 1: Open Notepad as an administrator by right-clicking on Notepad and selecting Run as Administrator.

Step 2: In Notepad, click File ? Open and navigate to the following path:

C:\Windows\System32\drivers\etc

Step 3: Change the file type from "Text Documents (*.txt)" to "All Files (*.*)" to see the hosts file. Select the hosts file and click Open.

Step 4: The hosts file contains system text. Scroll to the bottom, press Enter to create a new line, and add your blocking entry:

127.0.0.1    www.facebook.com

Type 127.0.0.1, press TAB, then type the website you want to block.

Step 5: Save the file by pressing Ctrl+S or clicking File ? Save.

Example: Blocking Multiple Websites

You can block multiple websites by adding separate lines:

127.0.0.1    www.facebook.com
127.0.0.1    www.twitter.com
127.0.0.1    www.youtube.com

Understanding the Format

Unblocking Websites

To unblock a website, simply:

1. Open the hosts file again as administrator
2. Delete the line containing the blocked website
3. Save the file

Important Notes

• Administrator rights required: You must run Notepad as administrator to modify system files
• Browser restart: Close and reopen your browser after making changes
• Clear DNS cache: Run ipconfig /flushdns in Command Prompt if changes don't take effect
• Works system-wide: This blocks the website for all browsers and applications on your computer

Conclusion

Modifying the Windows hosts file is an effective way to block websites across all browsers on your system. Remember to run Notepad as administrator and restart your browser for changes to take effect.