B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
18%
18% -- organic ctr decline for Organic search results (industries affected by AI summaries) (2025)
Organic click-through rate (CTR) has dropped between 18% and 64% in some industries due to AI summaries.
- Lower bound of a reported range (18-64%) across specific industries
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
18%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Forbes
Primary
Tier C
https://klickerinc.com/what-is-ai-search-optimization-and-why-does-it-matter-for-service-businesses-… ↗
Source Article
What Is AI Search Optimization and Why Does It Matter for Service Businesses in 2025?
Sam Lloyd July 23rd AI Search Optimization
Picture this: You’re running a mid-sized IT consulting firm in Chicago, juggling client deadlines, team management, and that nagging worry about where your next big lead is coming from. You’ve poured resources into traditional SEO, but lately, your website …
Original Research
Forbes
· Original study ↗
Methodology
Cited from Forbes via Klicker blog; reported range of 18-64% organic CTR decline across some industries due to AI summaries — midpoint (41%) extracted.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Organic search results (industries affected by AI summaries): 18% organic ctr decline. Source: Forbes (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/organic-ctr-decline-ai-summaries-2025
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<blockquote cite="https://lighthousedata.io/data/organic-ctr-decline-ai-summaries-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>18%</strong> -- organic ctr decline for Organic search results (industries affected by AI summaries)<br><small>Source: Forbes (2025) · <a href="https://lighthousedata.io/data/organic-ctr-decline-ai-summaries-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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