Rather than hydrating one application for the entire page, islands architecture bootstraps only components such as search inputs and carousels. The remaining static content, often more than 90% of a page, stays as HTML, significantly reducing initial JavaScript execution and supporting better INP. Independent islands that need shared state, such as a shopping-cart count, may require a lightweight event or state layer such as nanostores.
Some websites are seeing sharp increases in site: operator queries in Search Console performance reports. Explore possible causes, measurement effects and diagnostic responses.
