A plain-language explanation
Organic traffic is visits obtained from organic search results, without a direct fee for each click.
Where it helps in practice
Organic traffic comes from unpaid results, but value depends on query, landing page and what happens after the visit.
The decision before implementation
Separate brand from non-brand, devices, countries and page types so informational growth does not hide commercial decline.
How to verify the result
Measure visibility, clicks, engagement, conversion and revenue with seasonality and demand changes in view.