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AI search glossary

SERP

A SERP is a search engine results page: everything an engine returns for a query, including the organic links, the ads and the features above and between them. The word assumes a page of results, which is the assumption an AI answer removes rather than modifies.

Category
SEO fundamentals
Reviewed

What does the word SERP still describe accurately?

Google’s main results page, which is still a page of ranked results with features layered on it. An AI Overview sits on top of that page rather than replacing it, so positions, snippets and click-through all still mean what they meant, on the portion of the page below the summary. What has changed is where that portion begins. A summary above the results pushes the first organic link further down, so a position that used to be visible without scrolling may no longer be, and rank alone stopped describing visibility even on the surface where rank still exists.

Where does the vocabulary stop working?

In an assistant, where there is no page and no position. An answer names three or four sources inside prose, and there is no second place: you are in the answer or you are not. Every metric built on the word SERP inherits an assumption that has been removed, which is why a tool reporting your rank inside an AI answer is describing something that does not exist.

The replacement vocabulary is presence and frequency rather than position. How often you appear across a panel of prompts, run repeatedly, is the measurement that survives the loss of a results page. Ahrefs measured AI Overviews changing every 2.15 days on average across 43,000 keywords, which is another way of saying a single position reading would have been noise even if positions existed. This is also why reporting has to change shape rather than just add a column. A rank-tracking table with an AI column is describing two different kinds of thing in one grid, and the AI column will move for reasons the rest of the table cannot explain.

Is the SERP still where most of the traffic is?

By a very large margin, and it is worth saying plainly against the noise. Ahrefs analysed roughly 35,000 websites and found AI sources accounting for 0.1% of total referral traffic, with Google sending 345 times more than the three main assistants combined.

The recommendation that follows is unfashionable and it is what the numbers support: keep doing the search work, and add the answer-engine work beside it rather than in place of it. A site that stops ranking to chase citations has traded a channel that exists for one that is currently a rounding error, and the two are earned by mostly the same writing anyway.

  • AI OverviewAn AI Overview is the written summary Google places above its ordinary search results, assembled from web pages and shown with links to a few of them.
  • Featured SnippetA featured snippet is a passage Google extracts from a page and displays at the top of its results, with a link to the source.
  • Zero-Click SearchA zero-click search is a search that ends without the searcher clicking through to any website.
  • AI Referral TrafficAI referral traffic is the visits that arrive at a site from an AI assistant rather than from a search results page.

This definition of SERP was checked against the following sources. Definitions are reviewed quarterly and edited only when they are wrong, so the reviewed date above moves on a real correction and not on a schedule.

Every entry is listed on the RankX AI glossary index, and this page is available as Markdown at /glossary/serp.md.

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