By Priya Raman

The ranked results page stops being Google's default first response for most U.S. queries between 2028 and 2030, with the UK and EU following a year or more behind. That is the forecast from Duane Forrester, VP of product marketing at CitationIQ, published in a long-form analysis on Search Engine Journal. He draws a hard line between prediction and evidence, and the distinction matters for every practitioner budgeting against organic search.

Forrester defines the event precisely. The SERP does not disappear. It gets demoted one click away, a destination users can still reach on purpose but no longer land on by default.

The claim rests on an economic trigger rather than a technical one. Google flips the default when ad yield per query in the answer layer reaches rough parity with the ranked page, Forrester argues. Before that point, flipping costs Google money. After it, keeping the old default does.

What does the data show so far?

The answer layer has expanded fast. Pew Research Center studied 900 U.S. adults in March 2025 and found AI summaries on 18% of Google searches, with users clicking a traditional result in 8% of visits that carried a summary versus 15% without one. By May 2026, Similarweb's 2026 Generative AI Landscape put AI Overviews on 43% of U.S. searches, up from 15% a year earlier.

The two studies use different methods, and Forrester declines to stitch them into one trend line. As an amicus brief in the DOJ appeal noted, no industry-standard measurement of AI Overview prevalence exists.

The usage gap is the story. Google says AI Mode passed one billion monthly users within a year of launch, with queries "more than doubling every quarter." Yet Similarweb panel data from a June 2026 zero-click study found AI Mode accounted for only 0.34% of Google searches from January through April 2026. A billion people have tried the surface; almost none start there.

The referral numbers are stark. Similarweb measured AI Mode generating outbound referrals on 1.6% to 2.5% of queries, against 17% to 19% for traditional search.

Why has Google not flipped the switch?

Google has denied it is moving. In May, a widely repeated claim said the company made AI Mode the global default at I/O 2026. Google's announcement was narrower: Gemini 3.5 Flash became "the new default model in AI Mode for everyone globally," and users will "continue to get a range of results from Search, just like you do today." When a Chrome Canary flag briefly routed address-bar searches into AI Mode, Google's VP of Search Engineering Rajan Patel called it an error and wrote, "We're not planning to make AI Mode the default for Chrome searches."

The infrastructure for demotion already exists. Google launched its "Web" filter in May 2024, and Danny Sullivan announced it as a convenience for people who prefer plain links. It already presents ranked links as one view among several. Google needs no new engineering, only a reason to change which view loads first.

The economics are converging. In Q2 2026 earnings remarks, Sundar Pichai said Google had "reduced the cost of AI Mode responses to its lowest level since launch" and had "brought together AI Overviews and AI Mode into one seamless Search experience." Network advertising declined 1% in the same quarter, the part of Google's business that depends on sending people to the open web.

The brakes are regulatory, not technical

Three processes slow the timeline and stagger it by market:

• The UK's Competition and Markets Authority issued binding conduct requirements on June 3, 2026, letting publishers opt out of AI Overviews and AI Mode without penalty, with nine months to implement, putting the deadline around March 2027.
• The European Commission opened a formal investigation in December 2025 into whether AI Overviews and AI Mode use publisher content without compensation.
• The DOJ and plaintiff states filed a cross-appeal in July 2026, arguing that "a competitive window may close" if Google keeps using search profits against generative AI challengers.

Forrester anchors the timing on mobile-first indexing as precedent: seven years from start in November 2016 to completion in October 2023, with the default switch at roughly year four. Mapped onto AI Overviews' May 2024 launch, that lands between late 2027 and mid-2028. Advertisers and regulators extend the range to 2030.

He also names the falsifiers. The flip comes earlier if AI Mode's measured share passes roughly 10% in independent panel data, or if Google reports answer-layer ad revenue as its own line. It comes later if share plateaus in the low single digits through 2027 or advertisers report weak returns from AI Mode placements.

What does this change for marketers? Forrester's closing question is the practical one: what being indexed is worth once the ranked list is no longer the product. His advice is to check the signals quarterly rather than react to whatever number circulates that week.