the website or platform where the link is being shared (e.g. adwords, Facebook, email, etc.).
Tthe type of marketing channel being used (e.g. email, banner ads, CPC).
The name of the campaign or promotion being run (e.g. summer sale, new product launch).
The keyword or phrase associated with the link, for paid search campaigns.
The specific ad or content variant being tested in A/B testing. (e.g. version2a, blog-article)