How to Block Websites on a Computer?

The internet has become an essential part of how we work, learn, and collaborate. But it is also one of the biggest sources of distraction in modern workplaces. Studies show that the internet accounts for 41% of workplace distractions, second only to smartphones at 55%.^[1] Even more concerning, companies have found that nearly 50% of employees spend at least four hours every week browsing websites that are not related to work.^[2]

To manage this, organizations are increasingly restricting access to certain websites. In fact, around 89% of companies block specific sites that can harm productivity or create security risks. These commonly include social media platforms, shopping sites, video streaming services, gaming portals, and other non-work-related content.^[3]

These numbers highlight a simple reality: controlling web access on computers is no longer optional. It has become a necessary part of managing focus, productivity, and security in modern digital environments.

In this blog, we’ll explore why blocking certain websites on computers is important and learn how to block websites through different ways, from basic personal methods to more scalable approaches for businesses and educational institutions.

Why do you need to block websites on computers?

Blocking websites on computers is no longer just about limiting distractions. For most organizations, it has become a necessary part of maintaining productivity, security, and compliance across digital work environments. Whether it’s a school, a corporate office, a retail kiosk, or a financial institution, controlling what users can access online helps ensure systems are used for their intended purpose.

Here are the key reasons why organizations need to block websites on computers:

1. Improve employee and student productivity

Open access to online content such as social media, streaming platforms, and gaming sites can significantly reduce focus during work or learning hours. Blocking non-work-related websites helps to increase productivity and keep users aligned with their tasks and minimizes time spent on distractions.

2. Reduce exposure to security threats

Many websites host malicious ads, phishing pages, or harmful downloads. By restricting access to risky or unknown sites, organizations can prevent malware infections, ransomware attacks, and credential theft before they reach endpoints.

3. Protect sensitive business and user data

Employees or users may unintentionally upload files or share data through unsecured websites. Blocking file-sharing platforms or unapproved cloud services is a way to protect users prevent data leaks and ensure confidential information stays within approved systems.

4. Enforce compliance and regulatory requirements

Industries like BFSI, healthcare, and education must follow strict data protection and usage regulations. Website restrictions help enforce acceptable use policies and demonstrate compliance with standards such as GDPR, HIPAA, or PCI-DSS.

5. Maintain appropriate content access in schools and public spaces

In educational institutions and public-use systems, blocking inappropriate or explicit content is critical for creating a safe and age-appropriate browsing environment.

6. Secure purpose-built devices like kiosks and POS systems

Self-checkout kiosks, digital signage, and POS terminals are designed for specific tasks. Allowing unrestricted web access on these devices increases the risk of misuse, system tampering, and downtime. Website blocking ensures such devices stay locked to their intended functions.

7. Optimize network performance and bandwidth usage

Streaming sites, large downloads, and non-business browsing consume significant bandwidth. Restricting such sites helps ensure that critical business applications receive priority access to network resources.

In short, blocking websites is not about restricting users unnecessarily. It’s about creating a safer, more productive, and policy-driven digital environment that supports both business goals and user protection.

What are the ways to block access to a website on your computer?

There are several reasons why individuals and organizations choose to block websites. It could be to reduce distractions at work, improve productivity, or ensure a safe browsing experience for students and shared users. Depending on your use case, there are multiple ways to restrict access to websites on a computer, ranging from basic system-level controls to enterprise-grade management tools.

Below are some common and practical methods to block websites on computers.

1. Blocking websites using Windows host file (Windows 10 and Windows 11)

One of the simplest ways to block websites on a computer is by using a built-in Windows mechanism called the hosts file. This file controls how your system resolves website names into IP addresses. By editing the host file, you can redirect certain websites to your own machine, effectively making them unreachable.

This method is useful when:

• You want to block websites across all browsers
• You’re managing a single personal computer
• You don’t want to install extra software

How it works:

Step 1: Open the hosts file with admin rights

Search for Notepad, right-click it, and choose Run as administrator.

Then open the file located at:
C:\Windows\System32\drivers\etc\hosts

Make sure to change file type to All Files so you can see it.

Step 2: Add the websites you want to block

Scroll to the bottom and add entries like:

127.0.0.1 facebook.com
127.0.0.1 twitter.com

Each line blocks one website.

Step 3: Save and apply

Save the file and restart your browser. 
The websites will now be blocked across the system.

2. Blocking websites using the Google Chrome browser extension

Another commonly used method is blocking websites directly at the browser level using Chrome website blocker extensions like BlockSite.

This approach allows users to:

• Block specific websites or individual pages
• Apply restrictions only within Chrome
• Protect the block list with a password
• Prevent access even in Incognito mode

Browser-based blocking is suitable when:

• You want to restrict browsing only within a specific browser
• You are managing personal devices or shared systems
• You need quick, lightweight website control

How it works:

Step 1: Install the BlockSite extension

Open the Chrome Web Store

Search for BlockSite
Click Add to Chrome → Add extension

Once installed, you’ll see the BlockSite icon near the address bar.

Step 2: Open BlockSite settings

Click the BlockSite icon
Select Edit block sites list

This opens the main configuration page where you manage blocked websites.

Step 3: Add websites to block

In the “Enter a web address” field, type the website you want to block (for example: facebook.com)
Click the + icon

The site will now be blocked instantly in Chrome.

You can block:

• Entire websites (e.g., twitter.com)
• Or specific pages (by pasting the full URL)

Step 4: Enable password protection (optional but recommended)

To prevent others from changing your settings:

Go to the Password Protection tab
Enable Require a password to access BlockSite menu
Set a password

This ensures only you can modify the block list.

Step 5: Block websites in Incognito mode (important)

Users can bypass restrictions using Incognito mode unless you enable this:

• Go to Chrome → Extensions
• Click Details under BlockSite
• Turn on Allow in Incognito

3. Blocking websites using a UEM solution like Scalefusion

For businesses and educational institutions, managing website access through a Unified Endpoint Management (UEM) solution is the most effective and scalable approach.

With UEM solutions like Scalefusion, IT teams can:

• Block websites across all web browsers and devices centrally
• Apply web access policies based on user roles, groups, or departments
• Enforce restrictions on Windows, macOS, Android, iOS, and ChromeOS devices
• Prevent users from bypassing restrictions using alternate browsers or network settings
• Monitor web activity and maintain audit-ready logs

Unlike local or browser-based methods, UEM solutions like Scalefusion allows administrators to manage permissions and website restrictions remotely from a single dashboard, ensuring consistent enforcement across all devices. By using a UEM solution, website blocking becomes part of a broader device and security strategy, not just a standalone restriction.

How it works:

Step 1: Enroll devices into Scalefusion

First, all computers must be enrolled into Scalefusion UEM. This ensures that the devices are centrally managed and ready for policy enforcement.

Step 2: Create a Web Access or Browser Policy

From the Scalefusion dashboard, navigate to:

Profiles → Browser Settings

Here, you can define what kind of websites should be:

• Blocked
• Allowed
• Or monitored

You can block websites by:

• Domain (e.g., facebook.com)
• URL patterns
• Website categories (social media, gaming, adult content, etc.)

Step 3: Add websites to the block list

Add the domains or categories you want to restrict to the list of blocked websites.

For example:

• Block: facebook.com, youtube.com
• Allow: companyportal.com, trainingplatform.com

Step 4: Assign the policy to devices or user groups

Apply this policy to:

• Specific devices
• Device groups (e.g., “Finance PCs”, “Student Laptops”)
• User roles

This ensures the right people get the right level of access.

Step 5: Enforce and monitor

Once applied, Scalefusion enforces the policy in real time.

Admins can also:

Update rules instantly without touching devices

See which sites are being accessed

Identify violations

Which method is best for blocking websites on computers?

Each website blocking method serves a different purpose, depending on how and where the computer is being used.

Windows system-level blocking works well for blocking a few websites on a single computer. It’s simple and free, but it requires manual setup on every device and can be easily reversed by users with admin access. This makes it suitable only for personal or one-off use.

Chrome-based blocking using browser extensions is easy to configure and useful when you only want to control browsing inside Chrome. However, it only applies to one browser and can be bypassed by switching browsers or removing the extension, limiting its effectiveness in shared or managed environments.

UEM-based blocking is the most effective approach for organizations. A UEM solution like Scalefusion allows IT teams to block websites centrally across all devices and browsers, apply different rules for different users or groups, and enforce policies even on remote devices.

In short, Windows and Chrome methods are fine for personal use, but for enterprises and educational institutions, UEM is the most secure, scalable, and manageable option.

Enforce granular website restrictions with Scalefusion

As computer usage continues to grow across modern workplaces, controlling web access has become essential for maintaining productivity and security. Scalefusion UEM offers businesses a simple and reliable way to manage website access across multi OS devices, without adding complexity for IT teams.

Beyond website control, Scalefusion also helps you manage the entire device lifecycle from enrollment and app management to security policies, remote support, and compliance. This means web restrictions are not applied in isolation, but as part of a complete device management strategy that keeps endpoints secure, consistent, and work-ready.

With centralized controls, flexible policies, and real-time enforcement, Scalefusion makes it easy to apply granular website restrictions while maintaining full visibility and control over your devices.

References

1. TeamStage 
2. & 3.  EmpMonitor  
4. Statcounter 

Frequently Asked Questions (FAQs)

1. How to block websites in Windows Firewall?

Blocking websites in Windows Firewall involves creating a custom outbound rule to prevent access to specific URLs. Open Windows Firewall with Advanced Security, go to the Outbound Rules section and create a new rule. Choose “Custom” and then specify the URL or IP address you want to block under the “Which remote IP addresses does this rule apply to?” section. This method blocks traffic to the specified sites, effectively preventing access through any browser.

2. Do I need to change my router settings to block websites using Windows Family Safety?

No. Windows Family Safety works at the device and user account level, so you don’t need to adjust router settings. Once set up, it filters content and blocks websites directly on Windows devices. Router settings are only necessary if you want network-wide filtering across all connected devices.

3. What are URL filters and how do they help in website blocking?

URL filters are security tools that check web addresses against defined rules or lists. They help block harmful, filter inappropriate content, or unauthorized websites by preventing access at the browser, device, or network level. This ensures safer browsing, reduces malware risks, and helps organizations enforce compliance and productivity policies.

4. How can I block distracting websites and apps on a computer?

You can easily block distracting websites and apps using built-in system settings, browser extensions, or a Unified Endpoint Management (UEM) solution. While basic methods work for personal use, UEM tools are better for organizations because they let you apply restrictions across multiple devices from one dashboard.

5. Can I block specific URLs and websites on Safari with a UEM solution?

Yes. A UEM solution allows you to add specific URLs and entire website categories to block list on Safari by applying web filtering policies remotely. This ensures consistent restrictions across all managed Mac and iOS devices without relying on browser-level controls alone.

6. How can I block websites on a computer to reduce kids’ screen time?

For home use, you can block any website using parental controls, browser settings, or built-in screen time features on Windows and macOS. For more control, UEM or device management tools can help parents restrict internet access based on time, content type, and age-appropriate policies. This helps parents to create a safer online environment for kids.

7. Can I configure website restrictions on macOS devices using a UEM solution?

Yes. With a UEM solution, you can configure website restrictions on macOS devices by creating web filtering policies, blocking specific URLs, and allowing only approved sites. This is especially useful for schools and businesses that need centralized control over web access on Mac devices.