How AI Overviews work
For some searches Google composes a short written answer and places it at the top, above the ordinary blue links. The text is generated by a model rather than lifted whole from one page: it draws on passages from pages Google has already crawled and indexed, then shows links to the sources it leaned on. Those links are the only route back to the sites involved.
Two things follow. A page must be crawlable and indexable to be used at all, so anything blocked from crawling cannot be summarised or cited. And the same snippet controls that govern the preview text under a normal result also limit what Google may reuse here — a page set to withhold its snippet withholds itself from the summary too. Which searches get an overview varies by topic, language, country and device, and the same query can produce different wording for two people.
Why AI Overviews matter
They change what a top ranking is worth. When the answer sits on the results page, an informational search can end without a click, and visits from short definition and how-to queries thin out. Commercial searches behave differently: someone comparing suppliers or ready to enquire still needs the detail, the proof and the contact form that only your site holds.
The second effect is being named. A summary that cites you puts your business in front of someone at the moment they are forming an opinion, even when they never click. That is worth tracking — but as visibility, not as sessions.
Common mistakes with AI Overviews
The first is treating them as a separate channel needing separate content. There is no submission, no special markup and no format that qualifies a page; the pages Google already indexes are the raw material. Writing flat, mechanical copy in the hope a machine finds it easier to lift usually produces a page no human wants to read, which removes the reason to cite it.
The second is reacting to a traffic dip by blocking crawlers, which removes the chance of being cited without restoring a single click. The third is expecting stability. Whether an overview appears, and which sources it names, shifts between searches and over time, so one screenshot proves very little.
How to act on it
Answer the question plainly and early. A short, self-contained passage sitting directly under a heading phrased the way people actually ask is the easiest thing to quote — for a summary, for a featured snippet, and for a reader skimming on a phone. Then earn the click with what a summary cannot carry: your process, your pricing logic, the local context, the thing you learned doing the work.
Watch the shape of your traffic rather than the headline number. Report informational pages and commercial pages separately, so a fall in visits to definition articles is not mistaken for a fall in enquiries. If AI answers matter in your market, the practical groundwork is set out in this guide to optimising for AI search.