Online article about marketing attribution with a specific example

I’ve read an article somewhere not long ago, but can find it.

I’s about marketing attribution used in a specific example which led the company to find what content really worked for them. They wrote short, long… all kind of content, but only through attribution they found what really worked.

I know this is a unusual question. :slight_smile: I need the article for lobbying purposes :slight_smile:

Could it be: