> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.smartcertificate.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Hoe lang duurt een gratis proefperiode ?

De gratis proefperiode duurt 20 dagen of zodra u de 20 aangeboden credits hebt gebruikt.