> For the complete documentation index, see [llms.txt](https://help.1024proxy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.1024proxy.com/faq/product-issues/what-is-cdk-which-packages-support-it.md).

# What is CDK? Which packages support it?

CDK is a redemption code that can be used to increase the Dynamic Residential Traffic balance. Currently, only the Dynamic Residential Traffic package supports generating and redeeming CDK.