Assetfinder – Tool to Discover Facing Assets for Target Domain



Assetfinder is a powerful open-source tool used for discovering and mapping internet-facing assets for a target domain. It can be used to identify subdomains, IP addresses, and other online assets associated with a particular organization or website. With assetfinder you can find domains and subdomains potentially related to a given domain.

One of the key benefits of assetfinder is that it is fast and efficient. It is designed to be lightweight and easy to use, with a simple command-line interface that allows users to quickly scan large volumes of data. This makes it an ideal tool for security researchers, bug hunter, and anyone else who needs to quickly gather information about internet-facing assets for a target domain.

Another benefit of assetfinder is its flexibility. The tool can be customized to suit the needs of the user, with a range of options and settings that can be adjusted to optimize the scanning process. For example, users can specify the depth of the scan, the types of assets to include, and the output format for the results.

How Assetfinder Works

The tool works by scanning various online sources and databases, including public search engines, certificate transparency logs, and domain registration records. By aggregating data from multiple sources, assetfinder is able to provide a comprehensive view of the online assets associated with a target domain.

One potential downside of this tool is that it can generate a large volume of data, which can be difficult to manage and analyze. It is important to have a system in place for filtering and prioritizing the results to focus on the most important assets.


To install assetfinder, it requires Golang environment installed on your system.

After you successfully install golang, you can verify the installation by checking golang version. Type this command:

go version

Get the tool from Github, use this command:

sudo go get -u

Then copy the Assetfinder tool in the bin directory so we can easily use the tool by typing assetfinder anywhere on the terminal, use the following command:

sudo cp /root/go/bin/assetfinder /usr/local/go/bin/

Otherwise download a release for your platform. To make it easier to execute you can put the binary in your bin directory.

How to Use Assetfinder

To extract all related assets for target domain.


Or you can extract just subdomains only.

assetfinder –subs-only

assetfinder tool to find domains and subdomains potentially related to a given domain

Overall, this tool is a powerful and versatile tool that can provide valuable insights into the online assets associated with a target domain. However, as with any security tool, it should be used responsibly and ethically, with appropriate permissions and safeguards in place.

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