Reducing TBT with Astro's Islands Architecture
Learn how Astro's Islands Architecture eliminates unnecessary JavaScript by using partial hydration and client directives to improve page load speed and TBT.
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Learn how Astro's Islands Architecture eliminates unnecessary JavaScript by using partial hydration and client directives to improve page load speed and TBT.
Astro’s islands model lets you hydrate only the components that need interactivity, keeping the rest of the page static and minimizing bundle size. This guide walks through the problem, the solution, a concrete example, and the trade‑offs to consider.