> For the complete documentation index, see [llms.txt](https://docs.simptel.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.simptel.com/tf-platform/administration/organizations/projects/tenants/domains/certificates.md). # Certificates This article provides an overview of the options for managing SSL Certificates for your domains. When configuring a custom domain, **Automatic Certificate Management** is enabled by default. You can also opt for **Self-Managed Certificates.** If you disable the active self-managed certificate, the system will automatically revert to Automatic Certificate Management to maintain security. *** ### Automatic Certificate Management By default, SSL/TLS certificates are automatically issued, renewed, and deployed. This guarantees that your domains remain secure without any manual effort. *** ### Self-Managed Certificates Self-managed certificates are suitable for: * **Origin Servers**: Configuring SSL/TLS for secure communication between our service and your DNS provider. * **Custom Certificates**: Providing your own certificates to meet specific requirements. {% hint style="info" %} You are responsible for obtaining and renewing certificates from your chosen Certificate Authority (CA) and configuring your DNS provider accordingly. {% endhint %} --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.simptel.com/tf-platform/administration/organizations/projects/tenants/domains/certificates.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. 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.