B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
78%
78% -- search engine market share for Google (2026)
Google's search engine market share declined from 91% to approximately 78% in 2026.
- Value is approximate (~78%)
- Presented in the context of Gartner's 2026 prediction materializing
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
78%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
35
Freshness
95
Source
superlines.io
Primary
Tier C
https://www.superlines.io/articles/how-to-optimize-for-generative-ai/ ↗
Source Article
How to Optimize for Generative AI | Superlines
How to Optimize for Generative AI: The Ultimate Playbook for Visibility
How do you optimize for generative AI so your brand shows up in the answers, not only in the links below them?
The answer is Generative Engine Optimization (GEO). GEO combines clear, factual content with a broad, corroborated pr…
Original Research
superlines.io
· Original study ↗
Methodology
Approximate value; article notes decline from 91%.
Methodology documented
Trend Over Time
| Period | Value | Change |
|---|---|---|
| 2004-03 | 35.9% | |
| 2005-07 | 46.2% | +28.7% |
| 2005-07 | 48% | +3.9% |
| 2007-01 | 47.9% | -0.2% |
| 2007-05 | 50.7% | +5.8% |
| 2008 | 21% | -58.6% |
| 2008 | 79.03% | +276.3% |
| 2008-02 | 66% | -16.5% |
| 2009-06 | 78.68% | +19.2% |
| 2009-11 | 65% | -17.4% |
| 2009-12 | 67.3% | +3.5% |
| 2010 | 27.3% | -59.4% |
| 2010 | 27% | -1.1% |
| 2010 | 24.2% | -10.4% |
| 2010 | 65.1% | +169.0% |
| 2010 | 85.78% | +31.8% |
| 2010 | 65% | -24.2% |
| 2010-10 | 66.1% | +1.7% |
| 2010-11 | 65% | -1.7% |
| 2012 | 68% | +4.6% |
| 2012 | 15% | -77.9% |
| 2012 | 66% | +340.0% |
| 2012-03 | 75% | +13.6% |
| 2012-09 | 84.3% | +12.4% |
| 2012-09 | 84.3% | 0% |
| 2013 | 40% | -52.6% |
| 2014 | 67.6% | +69.0% |
| 2014-03 | 67.5% | -0.1% |
| 2015 | 63.5% | -5.9% |
| 2018 | 75% | +18.1% |
| 2019 | 70% | -6.7% |
| 2019 | 77% | +10.0% |
| 2019-06 | 46.95% | -39.0% |
| 2020 | 75% | +59.7% |
| 2020 | 92.4% | +23.2% |
| 2020 | 78.23% | -15.3% |
| 2022 | 2.34% | -97.0% |
| 2022-08 | 45% | +1823.1% |
| 2022-10 | 92.34% | +105.2% |
| 2023 | 88.86% | -3.8% |
| 2023-02 | 93.37% | +5.1% |
| 2023-11 | 92.45% | -1.0% |
| 2025 | 85% | -8.1% |
| 2025-01 | 17.39% | -79.5% |
| 2026 (current) | 78% | +348.5% |
| 2026 (current) | 72% | -7.7% |
Segmentation
Industrymarketing
Cite this stat
Plain Text
Google: 78% search engine market share. Source: superlines.io (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/google-search-market-share-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/google-search-market-share-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>78%</strong> -- search engine market share for Google<br><small>Source: superlines.io (2026) · <a href="https://lighthousedata.io/data/google-search-market-share-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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