When rendering an stkRedirect page the following error is outputted to the log:
...module.templatingkit.renderers.STKTemplateRenderer: License issues: no badge has been rendered!
This is pretty obvious since the stkRedirect template does not contain anything other then the pointer to where it forwards (displayed in edit mode). I would assume that the badge sets some flag when it has been rendered. It would be nice if stkRedirect would do the same.