# Product Guide

- [Supported protocols](https://docs.deguard.io/product-guide/supported-protocols.md)
- [WireGuard](https://docs.deguard.io/product-guide/supported-protocols/wireguard.md): A state-of-the-art VPN tunneling protocol redefining the landscape of secure communication.
- [VLess](https://docs.deguard.io/product-guide/supported-protocols/vless.md): Velocity Multiplexing over TLS
- [Guides](https://docs.deguard.io/product-guide/guides.md)
- [Buying a plan](https://docs.deguard.io/product-guide/guides/buying-a-plan.md)
- [How to check if the mint was successful](https://docs.deguard.io/product-guide/guides/how-to-check-if-the-mint-was-successful.md): This page provides a comprehensive set of instructions to ensure you can confidently confirm the success of your DeGuard NFT minting process.
- [VLess setup](https://docs.deguard.io/product-guide/guides/vless-setup.md)
- [WireGuard setup](https://docs.deguard.io/product-guide/guides/wireguard-setup.md)
- [Download clients](https://docs.deguard.io/product-guide/download-clients.md)
- [Troubleshooting](https://docs.deguard.io/product-guide/troubleshooting.md): Encountering issues with your DeGuard VPN?


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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.deguard.io/product-guide.md?ask=<question>
```

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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.