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Blockade allows companies––large and small––to protect individuals from malicious websites while keeping sensitive data private. With Blockade, you have complete control over threats blocked in the browser.

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Blockade Suite

The Blockade Cloud Node lets you or anyone else host their own indicator source.

The Blockade Analyst Toolbench is a simple command line tool to speed up indicator submissions Blockade cloud nodes.


For bugs and other problems, please file a message in the repositories issues area. For private questions or comments, contact Brandon at or find us on social media.


Why Blockade?

Blockade extends existing browser security controls like Google Safe Browsing. Unlike traditional closed processes, Blockade users are given complete control over what they block, when they block it and how their data is used.

Capability Blockade Google Safe Browsing
Blocks threats with no change to behavior
Transparent and automatically updated
Accessible APIs
Instantly block any threat
Focused on specific threats you care about
Gain insight into blocked content
Complete control of all processing



Getting Blockade in your browser is just a click away

Once installed, Blockade will automatically start running and begin searching for malicious websites. In the event a malicious site is detected, Blockade will redirect you to a warning page with more details about the content.


Blockade is split into two pieces, cloud infrastructure and the local Extension. Intelligence is passed from the cloud infrastructure directly into the browser’s local storage. Using special APIs available to extensions, Blockade will look for any web request matching a known indicator and block it from being loaded. Malicious events from Blockade are passed to the cloud infrastructure where analysts can review the findings and surface more attacks.

For more details, including an architecture diagram, click here.


Why a browser extension?

Browser extensions provide full visibility into the attack surface without requiring the user to change their natural processes. If we can detect and prevent attacks using analyst intelligence without changing human behavior, then we are one step closer to a less compromised world.

Will Blockade stop all attacks?

Unfortunately, no. Blockade is as good as its intelligence and will never be perfect. However, it’s a good first-start.

Can I help with the project?

Absolutely! If you have ideas, suggestions or want to work with the maintainers, just send us a message or file an issue!

For more answers, click here.