alt-text
Alt-text
StructureImpact: Standard
What we measure
≥80% of <img> tags have non-empty alt attributes.
Why it matters for AI citation
Multi-modal engines (Gemini, Claude, GPT-4o) read alt-text as page semantic context.
How to fix
Add descriptive alt to every meaningful image. Decorative images get alt="".
Source
Google SGE evaluation guide
Category
Structure
How parseable your page is to an AI engine. Schema, headings, lists, tables, alt-text, OG meta. The substrate that makes everything else legible.
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