The relevance of mobile responsiveness for websites lies in its impact on user experience and search engine optimization (SEO). A mobile-responsive design ensures that a website adapts seamlessly to various screen sizes and devices, improving accessibility and engagement. As more users access the internet via mobile devices, search engines like Google favor responsive sites in ranking results. Enhanced mobile responsiveness decreases bounce rates and fosters conversions, which are crucial components for businesses to remain competitive in the ever-evolving digital landscape.