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Google AI Overviews put a generated answer and links to supporting sources into the search page; traditional results primarily offer ranked links and snippets for people to evaluate. For publishers, that changes how a page may be seen and clicked—but the evidence does not support a single, universal traffic forecast. Effects vary by query, site, market and measurement method.
How AI Overviews change the search page
A traditional results page asks a searcher to choose among ranked pages and their snippets. An AI Overview instead synthesizes a response and presents links to sources within or alongside that response. The searcher may get an initial answer without visiting a site, or use a supporting link to investigate further.
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| What changes | Traditional results | AI Overviews | What it means for publishers |
|---|---|---|---|
| Main presentation | Ranked links and snippets | A generated answer with supporting links | A reader encounters an answer before deciding whether to visit a source. |
| Source selection | The searcher scans result options. | Google selects sources to support the answer, alongside other results. | Eligibility does not guarantee that a page will be cited or receive a visit. |
| Click and position reporting | Standard Search result clicks and positions | An external link click from an Overview counts as a click; all links in one Overview share the same position. | Interpret click and position data using the feature’s reporting rules. |
| Publisher controls | Search crawl, index and preview controls | Google documents preview controls and announced a separate generative-feature inclusion control test. | Check current availability and the trade-offs before changing directives. |
AI Overviews are not the same as AI Mode. Google describes AI Mode as an interactive experience that breaks a question into subtopics and searches them simultaneously. Its Search Console guidance covers how these features are reflected in reporting: Search Console Help.
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Published figures point in different directions because they measure different populations and outcomes. The clearest independent click comparison here is an observational study of U.S. browsing, not a randomized test of the effect on every publisher.
| Finding | Population and period | How to read it |
|---|---|---|
| Traditional-result clicks occurred in 8% of visits with an AI summary, versus 15% of visits without one. | Pew Research Center analyzed 68,879 unique U.S. Google searches, including 12,593 with an AI summary, using browsing data from March 2025. | In this sample, summary pages were associated with fewer traditional-result clicks. The study does not establish a universal causal loss for publishers. |
| A link in the AI summary was clicked in 1% of visits to pages with a summary. | Pew Research Center, same March 2025 sample. | This is the observed rate for clicks on summary links, not a forecast for every site or query. |
| The browsing session ended after 26% of pages with a summary, compared with 16% of pages showing only traditional results. | Pew Research Center, same March 2025 sample. | Session endings are an observed behavior, not proof that the summary alone caused the session to end. |
Pew found an AI summary on 18% of searches in that sample. It appeared more often with longer searches and question-form searches: 53% of searches with at least 10 words and 60% of queries beginning with question words. Those rates describe Pew’s U.S. sample in March 2025, not current worldwide prevalence. The full analysis is available from Pew Research Center.
Google’s aggregate account is a different measure
Google said on August 6, 2025, that total organic click volume from Search to websites was relatively stable year over year and that average click quality had increased. Google describes a quality click as one where a user does not quickly click back. This is Google’s aggregate account; it is not an independent finding or a publisher-by-publisher breakdown. Google did not give a numeric rate for “relatively stable” in the cited passage. See Google’s explanation.
Other studies cannot be combined into one trend line
A May 2026 arXiv preprint by Haofei Xu, Umar Iqbal and Jacob M. Montgomery reports a crawler study of 55,393 trending queries across 19 topical categories, collected over 40 days from March 13 to April 21, 2026. It found Overviews on 13.7% of queries overall and 64.7% of question-form queries. These figures come from a different sample and collection method than Pew’s, so the difference is not evidence of a rise or fall over time. The authors also found that 11.0% of 98,020 claims extracted from sampled Overviews were unsupported by their cited pages, with omission the dominant failure mode. This is a preprint result, not a universal accuracy rate: the study.
A 2026 public document from the UK Competition and Markets Authority says a Google internal experiment found a decrease in publisher clicks for queries that would have triggered an Overview, but the percentage is redacted. The document therefore supports neither a precise estimate nor a comparison with the observational rates above: CMA document.
Why a publisher’s result can differ from the average
An Overview’s presence, the query that triggered it, the page’s role in answering that query and the publisher’s own audience goals all affect what a Search change means. A result about a quick factual question may compete with an answer shown on the results page; a source that offers original evidence, detailed instructions or analysis may serve a different purpose. Neither pattern guarantees a traffic outcome.
- Query mix: the share of a site’s searches that produce Overviews can differ from the share in a study or in Google’s overall traffic account.
- Page type and intent: informational answers, original reporting, tools and transactional pages are not interchangeable. Track them separately rather than treating all organic visits as one audience.
- Geography and time: feature availability and appearances vary by market and query, and the studies cited above cover distinct periods.
- Outcome measured: impressions, clicks, engaged visits and conversions answer different questions. A click-volume claim alone does not show whether the visitors who arrive are valuable to a publisher.
Google reported that AI Overviews had more than 2.5 billion monthly active users and AI Mode more than one billion monthly users in June 2026. Those are company-reported feature audience totals, not independent estimates of publisher referrals or site-level impact: Google’s June 2026 announcement.
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How to measure the effect on your own site
Use Search Console with the feature’s reporting rules in mind
Google says external clicks from Overview links count as clicks in Search Console, and links within the same Overview share one position. Feature appearances were included in overall Web performance reporting. Google announced additional generative-AI visibility insights beginning tests and rollouts in June 2026; the interface and availability may vary. Consult the current Search Console Help and AI feature documentation rather than assuming a report or control is available to every account.
Build a useful comparison, not a single before-and-after number
- Compare clicks and impressions over consistent periods, and note any major changes to the site’s content or search demand.
- Segment results by date, geography, query intent and page type. Where you can observe whether a query triggers an Overview, record that separately.
- Use site analytics to examine outcomes that matter beyond the Search click, such as time on site and conversions; Google also recommends considering these outcomes.
- Keep definitions consistent. Do not interpret a shared Overview position as though each supporting link occupied a distinct conventional result slot.
This approach will not make every Overview appearance observable or isolate causation, but it can show whether changes coincide with different patterns for your own pages and audience.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What publishers can do about eligibility and visibility
Meet the same basic Search eligibility requirements
Google says a page must be indexed and eligible to appear with a Search snippet to qualify as a supporting link in AI Overviews or AI Mode. Its documentation says, “There are no additional technical requirements.” That is a statement about eligibility, not a promise of selection. Check that pages are crawlable and indexable, that hosting and CDN access work, that pages are discoverable through internal links, and that important text is available to Search. Ensure structured data matches visible page content. Google says no special AI-only file or structured data is required: Google Search Central’s AI feature guidance.
Make the page worth choosing as a source
Prioritize useful, distinctive work: original reporting or data, clear explanations, expert analysis, and details that add value beyond a generic summary. Use high-quality images or video when they genuinely help the page. Google’s guidance says unique, compelling and useful content is likely to influence a site’s long-term presence in generative AI search more than its other suggestions; it does not say any content format or optimization tactic guarantees a citation. See Google’s guide to optimizing for generative AI features.
Publisher controls: check the trade-off before opting out
Google documents Search preview controls and, in a June 3, 2026 announcement, said a separate control for inclusion in generative Search features was beginning a test. The announcement is not evidence that every publisher can already use that control. Google also said a site opting out of its generative Search features would lose impressions and traffic from those features. Before changing a directive, check the live documentation and the control’s current availability, scope and consequences; do not assume an AI-specific setting exists for your property. See Google’s announcement and Search Central’s current guidance.
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