Responsive web design ensures your site adapts seamlessly to various screen sizes—from desktops to tablets and smartphones. In terms of SEO, Google favors responsive sites because they offer a better user experience. A single URL structure, consistent HTML, and faster loading speeds all contribute to better crawlability and indexing. Poor design that doesn’t adjust to mobile devices leads to high bounce rates, harming your rankings. Furthermore, responsive sites eliminate the need for duplicate content across mobile and desktop versions, which simplifies your content strategy. Prioritizing flexibility in design helps both users and search engines navigate your site effectively.