Google just killed the "Show More" button — auto-expanding AI Overviews land

Google Search is now auto-expanding AI Overviews for select queries — the answer loads pre-expanded, the "Show more" button is gone, and an "Ask anything" box appears immediately underneath, one tap from AI Mode. For B2B founders, this is the second haircut to organic traffic in eighteen months. The first was AI Overviews landing at all. The second is Google removing the friction that gave publishers a chance to still get the click.

We ran a 50-query audit across informational B2B searches on 10–11 September 2026. Nearly two-thirds now auto-expand. This is the field note — the mechanics, the numbers, and what to ship this week.

What Google actually shipped this month

Between the first week of September and press coverage on 8 September, Google quietly changed the default state of AI Overviews on a subset of queries. Adido Digital's September SEO news roundup was among the first to flag the shift, and Performance Marketing World followed with a broader analysis of the organic-traffic implication.

The three concrete changes:

• Pre-expansion: On qualifying queries, the AI Overview renders in its full, oversized state on first paint — no user click required, no "Show more" button rendered.
• "Ask anything" box: A text input appears immediately below the expanded answer, styled to look conversational. Tapping it lifts the user into AI Mode — Google's Gemini-backed conversational surface where the entire session is answered by synthesis, not by scrolling.
• Selective trigger: Google is not flipping this on for every query. Our sampling suggests informational, comparison, and complex "how / why / what is" queries are the priority. Purely transactional and branded queries — where the user is closer to conversion — still show the collapsed variant.

None of this ships with a Search Central announcement. Google's public developer documentation on AI features in Search hasn't been meaningfully updated for this change — the change was reverse-engineered by SEO practitioners from live SERPs. That's a pattern worth naming. When the front door of the world's default search engine changes silently, publishers find out from third-party roundups, not from the platform they've optimised against for twenty-five years.

Why removing "Show More" matters more than the AI Overview itself did

The original AI Overviews rollout in 2024 already collapsed a lot of publisher traffic. But the "Show more" button was doing quiet work — it kept the top fold shorter, kept blue links closer to the answer, and forced an interaction cost that partially rate-limited zero-click behaviour. On the queries where the user did not tap "Show more", the blue links still had a shot.

Removing it changes three things at once:

1. Fold real estate collapses on first paint. An expanded AI Overview on desktop is often 800–1,200 pixels tall. On mobile, the entire viewport is answer. Your traditional SERP position, no matter how good, starts below the user's visible screen.
2. Interaction cost drops to zero. Google's own product-behaviour data almost certainly told them users who saw the expanded version dwelled longer and asked follow-ups. Removing the button removes the moment of choice. Behavioural nudge, executed cleanly.
3. The follow-up path is now Google's, not yours. "Ask anything" is not a search input — it's a doorway to a conversation. Once a user enters AI Mode, every clarifying question is answered by Gemini synthesising cited sources. Your site becomes a footnote in someone else's paragraph.

Search Engine Land, MOZ practitioners, and the SEO community more broadly have been calling this "the end of the 10 blue links" for a decade. The 10 blue links were already gone. What's ending now is the pretence that the blue links even matter on informational queries.

The AI Mode trapdoor — how "Ask anything" rewrites the buyer journey

This is the part every other spec-recap has missed. AI Overviews were a summary layer. AI Mode is an agent — one that keeps the user inside Google.

Picture the classic B2B research journey. A director-level buyer at a Series B DevTools company types "best fraud-detection API for fintech under $2M ARR". Old world: 10 blue links, they open five tabs, three go to G2, one to your comparison page, one to a competitor. You get a shot at the click.

New world: AI Overview loads expanded, names three vendors with a two-line summary each, cites six sources. "Ask anything" is right there. The buyer taps it. They ask, "which of these three has the fastest deploy time?" Gemini answers using cached context plus a fresh grounding pass. The buyer asks, "pricing for a 50-engineer team?" — answered. "Which one has SOC 2 Type II?" — answered. Twelve questions later, they have a preferred vendor. They have never opened a browser tab that isn't a Google surface.

If your pricing page is a React SPA that renders in JavaScript, Gemini's grounder saw nothing. If your SOC 2 language sits inside a PDF behind a form, Gemini quoted whoever put it in plain HTML. If your comparison table isn't marked up with Schema.org ItemList, you don't get the row.

What still gets the click when AI Overviews auto-expand

Blanket panic is not useful. In the same 50-query audit, some page types still pull the click — even on auto-expanded SERPs. These are the durable pockets:

• Named-entity queries. "WebFlur pricing", "Cargoflow case study", direct product names. Google still needs the source of truth, and AI Overviews link back for the transactional path.
• Comparison pages with named competitors and structured tables. Auto-expansion often cites two or three of the compared vendors — the source page shows up as a linked citation with substantially higher CTR than a normal blue link, per Search Engine Land's citation-CTR reporting.
• YMYL and regulated content. Legal, medical, financial. Google still surfaces authoritative source links prominently because the liability of a bad synthesis is too high.
• Deep how-to and technical tutorials. When the answer requires a code block, a screenshot sequence, or a step-by-step with images, the AI Overview truncates and users click through.

What loses first: thin listicles, generic "what is X" definitions, top-of-funnel awareness pages. If that's where 70% of your organic traffic sits, the next two quarters are going to be painful. And this is exactly the pattern why ChatGPT names your competitor and not you diagnosed for LLM search — Google is now doing the same thing to its own SERP.

The four-step retrofit — what to ship this week

Not next quarter. This week. The window between a search-behaviour change and buyers adapting is compressed further every year — Similarweb's tracking of AI Overview traffic effects showed measurable CTR shifts inside 30 days of the original rollout.

1. Re-audit every informational page against the "quotable in 40 words" test. Open your top 20 pages by traffic. Read the first paragraph. Can Gemini quote a single sentence that answers the head query? If not, rewrite it definition-first, bolded, ≤40 words. This alone moved five of our audit clients into visible citation on their target queries inside two weeks.
2. Ship FAQPage schema on every content page — with the questions in the HTML. Not just for the FAQ block at the bottom of your homepage. Every guide, every comparison, every solution page. The questions inside JSON-LD must match the HTML questions verbatim. Reference Google's FAQPage structured-data guide.
3. Add ItemList schema to every comparison, roundup, and "best of" page. This is what makes your rows extractable in an auto-expanded AI Overview. Named competitors, ordered positions, per-item URLs. Two hours of work per page and the highest ROI move we've seen this month.
4. Publish an entity-linked positioning statement. One clean paragraph on your homepage that names what you do, who you serve, what you compete against, and links out to Wikipedia / Wikidata entities using sameAs. Gemini's grounder resolves entities first, then does synthesis. Being resolvable is table stakes.

You can run this yourself. It's four days of engineering plus a content rewrite pass. Or you can hire an AI SEO agency built for this shift and ship the entire retrofit in one sprint. Either way, don't wait for the "official" Google announcement — it isn't coming, and every week you delay is another week your competitor accrues citation history inside AI Mode.

The honest hedge

We can't fully predict which queries Google will roll auto-expansion out to next, or how aggressively Gemini's grounder will lean on cached versus fresh context. The 64% figure in our audit is a snapshot — it'll almost certainly climb as Google widens the trigger set, then normalise once the SEO community adapts and Google recalibrates for user satisfaction. What is not going to reverse: the trajectory. Google is fully committed to answer-as-product. The blue-link SERP is now a fallback surface, not the primary one.

The last time a Google interaction change of this magnitude landed was Featured Snippets in 2014 — publishers that restructured their content for extractability captured a decade of compounding visibility, and everyone else fought over shrinking scraps. This is that inflection, at higher stakes, with a much shorter adaptation window.