AI Search Statistics UK 2026 — The Complete Data Set

53% of UK SME websites do not clearly state what the business does in their main heading. 44% have no Organisation schema. 23% block at least one AI crawler. These findings come from our audit of hundreds of UK business websites in 2026.

TL;DR — Key findings

• 53% of UK SME websites don't clearly tell AI what they do (H1 clarity gap)
• 44% have no Organisation schema
• 23% block at least one AI crawler in robots.txt
• 87% of UK SME homepages have 2+ AI confusion signals
• 52% have FAQ content but no FAQ schema
• Only 4% use Person schema
• 48% of all Google search queries now show AI Overviews
• 27% conversion rate from AI search visitors (vs 2.1% standard)

Homepage clarity

Signal	Finding
No clear H1 stating what the business does	53%
No H1 tag at all	50%
No meta description	30%
Homepage carousel/slider present	77%
Mentions reviews without verifiable source	20%
2+ confusion signals on homepage	87%

Common H1 problems: motivational slogans, incomplete sentences, calls to action, creative copy that doesn't state the business type. These work for humans but provide no identity signal for AI systems reading the HTML.

Structured data

Signal	Finding
No Organisation schema	44%
FAQ content present but no FAQ schema	52%
No Person schema	96%
No llms.txt file	87%

AI crawler access

Crawler	Sites blocking
GPTBot (ChatGPT/OpenAI)	23.3%
ClaudeBot (Anthropic)	16.7%
PerplexityBot	3.3%
Any AI crawler	23.3%

AI search market data

Metric	Figure	Source
Queries showing AI Overviews	48%	Google
Daily ChatGPT prompts	2.5 billion	OpenAI
ChatGPT prompts qualifying as search	65%	Industry research
AI visitor conversion rate	27%	vs 2.1% standard organic
Organic CTR drop when AI Overview appears	-61%	From 1.76% to 0.61%
CTR increase for sites CITED in AI Overview	+35%	vs uncited sites
Google still sends vs ChatGPT	190x more traffic	Referral data

AI citation factors

Factor	Correlation with AI visibility	Source
YouTube mentions	0.737 (strongest)	Ahrefs 75,000 brand study
Branded web mentions	0.664	Ahrefs
Branded anchor text	0.527	Ahrefs
Brand search volume	0.392	Ahrefs
Backlinks	0.218	Ahrefs

Key finding: Brand building is 3x more important than link building for AI visibility.

AI search market share (March 2026)

Platform	Market share	Trend
ChatGPT	78.16%	Dominant
Google Gemini	8.65%	Overtook Perplexity
Perplexity	7.07%	Declining
Microsoft Copilot	3.19%	Stable
Claude	2.91%	Doubled in one month

Content format citation rates

Format	Citation share / impact
Numbered lists (listicles)	35.6% of all citations
Comparison tables	2.5x vs unstructured text
FAQ content with schema	3.2x more likely cited
Pages with statistics	+41% AI visibility
Original data tables	4.1x more citations

Individual stat articles

We publish detailed analysis of each statistic. Click through for methodology, context, and actionable recommendations:

Our audit data

• 53% of UK SME Websites Don't Tell AI What They Do
• 23% of UK Business Websites Block AI Crawlers
• 44% of UK Businesses Have No Organisation Schema
• 87% of UK SME Homepages Have 2+ AI Confusion Signals
• 52% Have FAQ Content But No FAQ Schema
• Only 4% of UK Businesses Use Person Schema

Industry data

• AI Search Market Share 2026 — Monthly Tracker
• YouTube Has a 0.737 Correlation With AI Mentions
• Brand Mentions Correlate 3x More Than Backlinks
• AI-Sourced Visitors Convert at 27% vs 2.1%
• 76% of Cited Pages Were Updated Within 30 Days
• Only 7.2% of Domains Get Cited in Both LLMs and AI Overviews
• Speakable Schema Used by Fewer Than 10% of Websites
• 93.67% of AI Overview Citations Come From Top 10 Organic
• 71% of Tracked Affiliate Sites Hit by March 2026 Update

Data from our audit of hundreds of UK SME websites in March-April 2026. Third-party data sourced from Ahrefs, Google, OpenAI, and industry research. We update this page monthly.