Can I use test cards on a production site? Rachel Quick March 06, 2019 13:10 Follow Test credit cards (found at https://docs.recurly.com/docs/test) will only work on a site that is in sandbox mode. Consider creating a second site that remains in sandbox mode for ongoing testing. Related articles How can I open a new sandbox site for testing? DIY Trainings Comments 0 comments Please sign in to leave a comment.