SEO ranking is the position a page occupies in a search engine's organic results for a given query. Positions are traditionally numbered 1 through 10 on the first page, 11 through 20 on the second page, and so on, used as a leading indicator of organic traffic potential and the most-tracked metric in the SEO discipline. The metric still matters, but its meaning has shifted: AI Overviews, featured snippets, People Also Ask boxes, and other SERP features now occupy real estate that previously belonged to the top organic results, which has compressed the value of every position.
The click-through-rate curve by organic position is the foundation of why ranking matters at all. Industry data (Advanced Web Ranking, SISTRIX studies) his...