SERP stands for Search Engine Results Page — the page a search engine displays after someone runs a search, containing organic listings alongside features like ads, featured snippets, and the local pack.
A modern SERP is rarely just a plain list of ten blue links anymore. Depending on the query, it can include paid ads, a featured snippet, a "People also ask" box, a Google Maps local pack for location-based searches, image or video carousels, a knowledge panel, and various other rich features layered around or above the traditional organic results. How crowded a specific SERP is with these extra features has a real effect on how much traffic even a top organic ranking can expect to drive — a heavily-featured SERP can push organic results further down the page and reduce the share of clicks available to them, compared to a SERP with fewer competing features. "SERP features" is the general term for these non-standard-listing elements, and different queries trigger completely different mixes of them based on Google's judgement of what best serves that specific search.
Understanding what a target term's SERP actually looks like before targeting it — not just its estimated volume and difficulty — gives a much more realistic picture of how much traffic a good ranking might actually drive, since a heavily-featured SERP for a competitive term may leave meaningfully less organic click-through room than the raw numbers suggest.
Featured snippets, "People also ask" boxes, image/video results, the local pack for location-based searches, and paid ads are among the most common — though the specific mix varies significantly by query type and industry.
Often yes, particularly when several features stack above the organic results — a searcher may get their answer directly from a featured snippet or "People also ask" box without clicking through to any site at all, reducing available clicks even for a well-ranking page.
Not always — paid ads, a featured snippet, or a local pack can all appear above the #1 organic result, meaning the top organic listing isn't necessarily the first thing a searcher sees on the page.
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