B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
25%
25% -- projected search engine volume decline for global search engine volume (2026)
Gartner projected search engine volume would decrease by 25% by 2026 due to AI chatbots.
- Projected scenario modeling, not realized
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
25%
Unit
Percentage
Data Vintage
2026
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Gartner
Primary
Tier A
https://turboaudit.ai/generative-engine-optimization ↗
Source Article
Generative Engine Optimization (GEO): 2026 Guide | TurboAudit
Generative Engine Optimization (GEO) is getting your content cited as a source inside answers generated by ChatGPT, Perplexity, Google AI Overviews, AI Mode, Gemini, Copilot, and Claude. Coined in the 2024 KDD paper by Aggarwal et al. (Princeton + IIT Delhi, arXiv:2311.09735) and broadened in 2026 t…
Original Research
Gartner
· Original study ↗
Methodology
Gartner scenario modeling, Feb 19 2024 press release; later clarified as projection, not realized
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
global search engine volume: 25% projected search engine volume decline. Source: Gartner (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/gartner-search-volume-drop-25
HTML Embed
<blockquote cite="https://lighthousedata.io/data/gartner-search-volume-drop-25" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25%</strong> -- projected search engine volume decline for global search engine volume<br><small>Source: Gartner (2026) · <a href="https://lighthousedata.io/data/gartner-search-volume-drop-25" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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