In the first four months of 2026, 68.01% of Google searches in the United States ended without a single click to any website — organic, paid, or otherwise. Only 276 out of every 1,000 searches now reach the open web.
That’s the headline finding from SparkToro and Similarweb’s landmark June 2026 study, and it represents the steepest two-year acceleration in zero-click behavior since measurement began. In 2024, the figure was 60.45%. A decade ago, it was roughly 45%. The trendline is unambiguous: Google is becoming a walled garden where answers are delivered, consumed, and abandoned without anyone visiting a website.
But the Google headline only tells part of the story. Across every AI engine — ChatGPT, Perplexity, Gemini, Claude, Google AI Mode — users are increasingly getting answers without clicking. This article aggregates the most important statistics from 2026’s major studies so you can understand the scale of the shift.
The 68% Number: What It Means
Rand Fishkin’s SparkToro study, powered by Similarweb clickstream data covering January through April 2026, paints a stark picture:
| Metric | Value |
|---|---|
| US Google searches ending without a click | 68.01% |
| Share of searches generating at least one organic click | 31.99% |
| Searches leading to another Google search (refinement) | Up 7.2 pp vs 2024 |
| Open-web clicks per 1,000 Google searches | 276 |
| Two-year increase in zero-click rate (2024 → 2026) | +7.56 points |
The study excludes Google’s mobile search app, where zero-click behavior is likely even higher. Mobile searches — which account for over 60% of all Google queries — show a 77.2% zero-click rate, compared to 46.5% on desktop. Semrush’s 2025 zero-click study corroborates this, finding 58.5% of US and 59.7% of EU searches end without a click.
The mobile web is where most discovery happens, and it’s where clicks are dying fastest.
Key takeaway: For every 1,000 times someone searches Google, 724 produce no visit to any website. Your content can rank #1 and still be invisible to the overwhelming majority of searchers. This is why tools like RankBits exist — to measure the visibility that happens inside AI answers, not just on the search results page.
AI Overviews: The Accelerant
Google AI Overviews (AIOs) launched in May 2024 and have since become the single largest driver of zero-click acceleration. Prevalence varies by methodology — BrightEdge’s commercial tracker records ~48% of queries (up 58% YoY), Conductor’s 21.9-million-query benchmark finds 25.11%, and Google’s own disclosure cites “roughly 50%” of US queries. The defensible range is 20–50%, with informational queries at the high end.
By query length: just 8% of short one-or-two-word searches trigger an AI Overview, rising to 53% for searches of 10+ words, and 60% for question-style queries.
AI Overview CTR Impact
Every major study measuring AI Overviews’ effect on click-through rates has found a significant decline:
| Study | CTR Impact | Details |
|---|---|---|
| Seer Interactive (Sep 2025) | −61% organic | 1.76% → 0.61% across 3,119 queries |
| Seer Interactive (Sep 2025) | −68% paid | 19.7% → 6.34% |
| Ahrefs (Dec 2025) | −58% position 1 | 300K keywords tracked |
| Pew Research Center (Jul 2025) | −47% overall | 8% CTR with AIO vs 15% without |
| Amsive Digital (2025) | −15.5% | Most conservative estimate, 700K keywords |
Seer’s landmark longitudinal study — tracking 2.43 billion impressions, 53 brands, and 5.47 million queries over 14 months — found organic CTR collapsed from 1.76% to 0.61%, a 65% decline. It has since rebounded to about 2.4% by February 2026, but the structural gap between AIO-present (2.4%) and AIO-absent (3.8%) queries — approximately 37% — is now the permanent baseline.
Ahrefs’ December 2025 update found the position 1 CTR decline accelerated from 34.5% in April 2025 to 58% in December 2025 — the impact is compounding, not plateauing.
What Users Do When AI Overviews Appear
Pew Research Center’s July 2025 behavioral study found:
- Only 1% of users click any link inside an AI Overview
- 26% end their browsing session entirely after seeing an AI Overview (vs 16% without)
- 83% of AI Overview queries produce zero clicks (Bain–Dynata, December 2024)
The silver lining: Brands cited within AI Overviews earn 120% more organic clicks per impression than uncited brands on the same queries, and 91% more paid clicks. Being cited is the new ranking. The question is: do you know whether you’re being cited? Most brands don’t — which is exactly why AI visibility tracking matters.
Google AI Mode: Even More Extreme
Google AI Mode — the fully conversational search interface launched in 2025 — represents the next phase of zero-click acceleration. It passed 1 billion monthly users according to Google I/O 2026, with queries more than doubling every quarter.
| Metric | Value |
|---|---|
| Zero-click rate | 93% |
| Referral rate (external clicks) | 1.6–2.5% of queries |
| Daily active users | 75M |
| Share of all Google searches | 0.34% |
| Average session duration | 49 seconds |
AI Mode currently represents only 0.34% of Google searches — meaning the zero-click acceleration from this surface alone has barely begun. As it rolls out more broadly, the 68% figure is likely to climb further.
How AI Engines Differ on Citations
Not all AI platforms are equal when it comes to sending traffic. Superlines’ March 2026 analysis of 34,234 AI responses found a 46x difference in brand citation rates between platforms:
| AI Engine | Citation Rate | Brand Visibility Rate |
|---|---|---|
| Grok | 27.01% | 8.47% |
| Perplexity | 13.05% | 0.64% |
| Google AI Mode | 9.09% | 2.14% |
| Gemini | 6.38% | 0% |
| Google AI Overview | 2.11% | 2.28% |
| Copilot | 1.27% | 1.10% |
| ChatGPT | 0.59% | 0.14% |
| Claude | 0% | 0% |
| DeepSeek | 0% | 0% |
| Mistral | 0% | 0% |
The 615x gap between Grok (27.01%) and Claude (0%) means a brand can be thriving on one platform and completely invisible on another. Multi-platform tracking isn’t optional — it’s essential. This is why RankBits scans across 13 engines simultaneously: what you don’t know you’re missing is often the biggest competitive threat.
ChatGPT Still Dominates Traffic Volume
Despite its low citation rate, ChatGPT drives 87.4% of all AI referral traffic. It’s a volume game: 900 million weekly users × 0.59% citation rate still produces massive absolute traffic. AI platforms collectively generated 1.13 billion referral visits in June 2025 alone — up 357% year over year.
Only 11% Overlap Between Engines
A 2026 analysis of 680 million citations found that only 11% of domains are cited by both ChatGPT and Perplexity. Each engine has its own sourcing philosophy:
- ChatGPT favors consensus: Wikipedia, Reddit, established media. Its Reddit citations fell from ~60% of responses to ~10% between 2025 and 2026
- Perplexity favors community and freshness: Reddit leads at 46.7% of top citations; content updated within 30 days gets cited at 82%. Perplexity averages 21.87 citations per response — more than double ChatGPT’s 10.4
- Gemini leans on brand-owned websites: 52.15% of its citations come from brand domains
- Google AI Overviews maintain ~54% overlap with traditional organic rankings — the closest to classic SEO
- Only 12% of URLs cited by AI assistants rank in Google’s top 10 for the same query
The Publisher Impact: Traffic Is Collapsing
The traffic decline isn’t theoretical. It’s measured and severe:
| Metric | Impact |
|---|---|
| Global publisher Google referral traffic | −33% YoY |
| US publisher Google traffic | −38% YoY |
| Google Discover traffic (global) | −21% YoY |
| Wikipedia daily pageviews | −15% (8% human) |
| B2B websites with significant traffic loss | 73% |
| B2B organic leads (Jan → Oct 2025) | −47% |
| US organic search traffic (overall) | −2.5% YoY |
Publishers surveyed by Press Gazette expect traffic to decline by 43% on average over the next three years, with approximately one-fifth anticipating losses exceeding 75%. Penske Media Corporation filed an antitrust lawsuit against Google in September 2025, claiming Google abuses its search monopoly by forcing publishers to allow content use in AI Overviews.
Industry AI Overview Prevalence
Industries with the highest AI Overview coverage (BrightEdge, Feb 2026):
| Industry | AIO Coverage |
|---|---|
| Healthcare | 88% |
| Education | 83% |
| B2B Technology | 82% |
| Finance | >20% |
| Government | >20% |
| Science | >20% |
Zero-Click by Query Type
Not all queries are equally affected. Transactional intent still produces clicks. Informational intent largely doesn’t:
| Query Type | Zero-Click Rate |
|---|---|
| Informational (“what is,” “how to”) | 74% |
| Navigational (brand name, website) | 68% |
| Local (“near me,” address) | 72% |
| Commercial investigation (“best,” “review”) | 46% |
| Transactional (“buy,” “sign up”) | 31% |
For commercial teams: 46% zero-click on “best X” queries means more than half of purchase-intent searches still produce clicks. But the trend is worsening — in 2024, commercial investigation zero-click was ~35%.
The Conversion Silver Lining
There is a counterintuitive upside. The users who do click through from AI answers are extraordinarily high-intent:
| Conversion Metric | Rate |
|---|---|
| ChatGPT-referred visitors convert | 15.9% |
| Perplexity-referred visitors convert | 10.5% |
| Claude-referred visitors convert | 5.0% |
| Google organic search average | 1.76% |
| AI visitors: share of signups vs traffic | 12.1% of signups / 0.5% of traffic |
| LLM visitors vs organic conversion | 4.4x higher |
| Adobe AI referral traffic growth (holiday 2025, YoY) | +693% |
AI-referred traffic converts at rates that make it one of the highest-ROI acquisition channels available. The challenge is earning those citations in the first place — and knowing which engines are sending you traffic. Most analytics tools can’t tell you, but dedicated AI visibility platforms can.
How Many Brands Are Actually Visible?
The gap between AI search importance and brand readiness is enormous:
- 90% of brands have zero AI search mentions — a Q1 2026 study of 177 brands across healthcare, SaaS, financial services, ecommerce, and legal found only 18 had any AI mention rate above zero across 107,011 AI responses
- Only 14% of marketers track AI citations, even as 43% name AI search optimization a core 2026 strategy
- Only 27% consistently track their brand’s appearance in AI-generated answers; 25% don’t track it at all; 12% don’t know tracking is possible
- Yet 37% of consumers now begin searches with AI tools rather than traditional search engines, and 35% use AI at the product discovery stage
- AI search visits grew 42.8% YoY from 15.6 billion to 27.4 billion (Q1 2025 → Q1 2026)
AI Platform Market Share: A Rapidly Shifting Landscape
The AI assistant market is no longer a ChatGPT monoculture. Similarweb’s March 2026 data shows a dramatic rebalancing:
| AI Platform | Web Traffic Share (Mar 2026) | Change (12 months) |
|---|---|---|
| ChatGPT | 56.7% | Down from ~87% |
| Gemini | 25.5% | Up from ~6% |
| Grok | ~6% | — |
| Claude | 6.0% | Up from 1.4% (tripled in Q1 2026) |
| Perplexity | 2.0% | — |
| Copilot | 1.1% | — |
Claude’s US mobile DAU share went from <2% in December 2025 to 10.0% in March 2026 — the fastest growth of any AI assistant. Perplexity, while smaller at ~30M MAU, grew queries ~200% year-over-year and averages 21.87 citations per response — more than double ChatGPT’s 10.4.
ChatGPT still leads with ~900M weekly active users and ~5.51B monthly website visits. Google’s Gemini app also reached 900M monthly active users at I/O 2026. The AI platform landscape increasingly demands a multi-engine strategy — tracking just ChatGPT or just Google means missing the majority of the picture.
What This Means for Your Brand
The data paints a clear picture with three implications:
1. Rankings ≠ Visibility Anymore
Only 12% of URLs cited by AI assistants rank in Google’s top 10 for the same query. The overlap between top Google links and AI-cited sources has dropped from 70% to below 20%. SEO alone won’t make you visible where users now spend their time. You need to track what AI engines actually say about your brand.
2. You Need Multi-Platform Tracking
With only 11% domain overlap between ChatGPT and Perplexity citations, and a 615x citation rate gap between Grok and Claude, tracking one engine gives a dangerously incomplete picture. You need visibility into all of them.
3. Citations Are the New Clicks
Brands cited in AI Overviews get 120% more organic clicks. ChatGPT-referred visitors convert at 15.9% — 9x higher than organic search. The brands that understand and measure their AI visibility now will own the citations everyone else will fight over later.
Track Your AI Visibility
RankBits scans your brand across 13 AI engines and search sources — ChatGPT, Gemini, Claude, Perplexity, Google AI Overview, Google AI Mode, Google Search, Bing, Grok, Copilot, DeepSeek, Tavily, and Exa — and shows you exactly where you’re cited, where you’re not, and how you stack up against competitors.
Sources
- SparkToro & Similarweb — “In 2026, Less than One Third of Google Searches Still Send a Click” (June 2026)
- Ahrefs — “Update: AI Overviews Reduce Clicks by 58%” (December 2025)
- Superlines — “AI Search Statistics 2026: 60+ Data Points” (March 2026)
- Similarweb — “Zero-Click Marketing: What the 2026 Data Means” (2026)
- Seer Interactive — AI Overviews CTR Impact Study (September 2025, updated April 2026)
- Pew Research Center — AI Summaries in Google Search (July 2025)
- BrightEdge — AI Overview Citations & Industry Coverage (February 2026)
- Conductor — 2026 Benchmarks (Q1 2026)
- Press Gazette — Publisher Google Traffic Trends (2025)
- Semrush — Zero-Click Study & Intent Analysis (2025)
- Digital Applied — “Zero-Click Search Statistics 2026: Complete Data Guide” (April 2026)
- Digital Applied — “AI Share of Voice: Tracking Brand Citations Framework 2026” (2026)
- Omnibound — “Zero-Click Search Statistics (2026): 52+ Data Points” (2026)
- Omnibound — “Google AI Overviews Statistics (2026): 56+ Data Points” (2026)
- Omnibound — “Generative Engine Optimization Statistics (2026)” (2026)
- Leapd — “How ChatGPT, Google AI Overviews, and Perplexity Source Information in 2026” (2026)
- Discovered Labs — “How Each AI Platform Cites Sources Differently” (January 2026)
- QuickSEO — “ChatGPT vs Perplexity for AI Visibility in 2026” (2026)
- Search Engine Journal — “90% of Brands Have Zero AI Search Mentions” (May 2026)
- Bain & Company — “Losing Control: AI Search and B2B Buying” (September 2025)
- LLMrefs — “Generative Engine Optimization (GEO): The 2026 Guide” (2026)
- FatJoe — “Claude AI Stats May 2026” (May 2026)
- InstantPress — “AI & ChatGPT Statistics for 2026” (2026)
- ZipTie.dev — “Platforms Losing Visibility Due to AI” (April 2026)
- Dataslayer — “AI Overviews Killed CTR 61%: 9 Strategies to Show Up” (2026)
- SQ Magazine — “AI Overviews Statistics 2026” (2026)
- theStacc — “Google AI Overviews in 2026: 48% of Searches Have Them” (April 2026)
- Panto — “Perplexity AI Statistics 2026” (2026)
