# Transaction Blacklist In order to protect your machine from material that may be illegal in your country, you should use a content policy when mining Arweave. Content policies can be generated using the [Shepherd tool](https://shepherd.arweave.net). Shepherd allows you to create your own content policies for the content that you would like to store on your Arweave node, abiding by your moral and legal requirements. In order to help you get started quickly, @ArweaveTeam provides an NSFW content filter which you can load by adding the following to your Arweave start command: `transaction_blacklist_url https://public_shepherd.arweave.net` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.arweave.org/developers/mining/overview/blacklist.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.