The URL Slug is the customizable portion of the web address for a page/article/blog.
As an example within the URL: help.unstack.com/this-help-document, the URL slug is this-help-document.
Within Unstack, you do not need to add the initial forward-slash, however, any preceding forward-slashes should be indicated within the URL slug. As a brief example this URL:
Will have a URL slug of help/category/this-help-document where the first, initial forward-slash was not indicated but all others were.