Astro's zero-JS default produces highly parseable HTML. Interactive components are the variable.

The Astro Project

Astro accessibility

Astro accessibility comes from its zero-JS-by-default island architecture — most pages ship as plain HTML which is inherently more accessible than client-rendered SPAs — combined with semantic markup in components and accessible interactive islands where used.

What does accessibility mean on Astro?

Astro's zero-JS-by-default model is a structural accessibility advantage. Failures originate in interactive islands and theme/template choices.

Known accessibility challenges in Astro

Inaccessible interactive islands
Theme inconsistency

Step-by-step: accessibility setup for Astro

Use semantic HTML in .astro components. Native elements first.

Integration with this platform

Integration approach: Components (any framework).

FAQ