Stay safe online with DNS Firewall! This network security solution blocks known malicious websites, helps you avoid phishing attacks and undesired content so that you can enjoy the best browsing experience.

Designed with safety and quality in mind, DNS Firewall offers you the highest security standards and cutting-edge technologies. Check it out and see for yourself!


- Block malicious websites
- Protect your Mac when surfing the web
- Filter traffic and prevent phishing attacks
- Keep your data safe from third parties
- Create your own blocklists
- Avoid undesired content like gambling sites, etc.

Note: KeepSolid DNS Firewall is a part of the MonoDefense security bundle. The bundle offers versatile protection of your online activities, passwords, and other sensitive data. Choosing MonoDefense, you get DNS Firewall, VPN Unlimited®, and the password manager Passwarden® all in one package.


◆ Advanced protection online

Prevention is better than cure. It’s better to block malware domains before they cause any damage. This is exactly how DNS Firewall works. It filters your traffic in real-time, intercepts DNS resolution for malicious websites, and blocks them.

In the same way, DNS Firewall helps to protect your Mac from phishing attacks, websites with intrusive pop-up ads, and inappropriate content like gambling, fake news, games, suspicious domains, etc.

◆ Regular database updates

Though the threat landscape is rapidly evolving, KeepSolid DNS Firewall keeps up with the pace! We’ve ensured regular updates of our databases to guarantee the ultimate protection of your online activities.

◆ Multiplatform support

DNS Firewall offers cross-platform support and can be used on up to 5 devices with a single subscription. So, you can surf the web worry-free on your Mac, iPhone, or any other device you have.

◆ Intuitive interface

Getting started with KeepSolid DNS Firewall is as easy as 1-2-3! The app features an intuitive and easy-to-use interface. Just a quick setup, a few clicks, and malicious websites stand no chance. Absolutely no technical knowledge is required.

◆ 24/7 customer support

Our customer support team is available 24 hours a day, 7 days a week. We are glad to help you whenever you need any assistance or have any questions. So feel free to contact us via at any time!

After your free 7-day trial, you can choose any of our subscription options:
▶ 1 Month
▶ 1 Year
▶ Lifetime

Legal information:

What’s New

Version 1.0.2

The DNS Firewall filters all malicious traffic and blocks DNS-activity to safeguard your private data and raise your online security to an even more advanced level.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating



I Like it it’s nice and easy to use

Developer Response ,

Thanks for the 5-star review, we're pleased to hear you're enjoying our service.

__Master__ ,

Best firewall!

The best firewall I tried ever.

Developer Response ,

Thanks for your positive review, we're pleased to hear you are enjoying our service.

bonanza1250 ,

Good app .:::

The game is cool and fun

Developer Response ,

We appreciate your positive review, thank you for taking the time to share your opinion.

App Privacy

The developer, KeepSolid Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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