B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
30%
30% -- image search visibility increase for websites optimizing alt text (2026)
Optimizing image alt text alone can increase image search visibility by 30% or more.
- The source notes the increase can be '30% or more'
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
30%
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
45
Freshness
95
Source
anypost.ai
Primary
Tier C
https://anypost.ai/blog/accessibility-as-an-seo-strategy-how-inclusive-design-helps-ai-crawl-and-und… ↗
Source Article
Accessibility as an SEO Strategy: How Inclusive Design Helps AI Crawl and Understand Your Site
Original Research
anypost.ai
· Original study ↗
Methodology
Unattributed study cited by author
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
websites optimizing alt text: 30% image search visibility increase. Source: anypost.ai (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/alt-text-image-search-visibility-30
HTML Embed
<blockquote cite="https://lighthousedata.io/data/alt-text-image-search-visibility-30" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>30%</strong> -- image search visibility increase for websites optimizing alt text<br><small>Source: anypost.ai (2026) · <a href="https://lighthousedata.io/data/alt-text-image-search-visibility-30" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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