# How can I use HTTPS with Let's Encrypt? {% embed url="" %} **YouTube Video:** Quick Start Guide Activate HTTPS with Let's Encrypt for Free {% endembed %} Encrypt your live streams with HTTPS and avoid security gaps and errors caused by mixed content. ## Notes * You can use any dynamic DNS service like myfritz, no-ip, dyndns or other services. * Do not forget to forward the public port for HTTPS: 443 to your internal Restreamer IP default port: 8181. * Don't forget to forward the public port for HTTP: 80 to your internal Restreamer IP default port: 8080 * The HTTPS certificate is renewed automatically. * No registration with Let's Encrypt is required ## What is Let's Encrypt? {% embed url="" %} **External URL:** letsencrypt.org {% endembed %} ## Learn more {% content-ref url="/pages/-MYd\_eWFK56LZQkA-iAN" %} [User Guides](/restreamer/knowledge-base/user-guides.md) {% endcontent-ref %} {% content-ref url="/pages/-MXb\_m72sKwXpgM5udfT" %} [Knowledge Base](/restreamer/knowledge-base/manual.md) {% endcontent-ref %} --- # 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.datarhei.com/restreamer/knowledge-base/user-guides/how-can-i-use-https-with-lets-encrypt.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.