Modern website design is about more than just looks — it's about functionality, performance, and user experience. Must-have features include mobile responsiveness, fast load times, clear calls to action, SEO-friendly structure, accessible design, integrated analytics, and scalable architecture. Other essential elements include content management systems (like WordPress), e-commerce functionality (if needed), and personalized UX. A modern website should adapt to changing tech, support digital marketing strategies, and evolve with your business goals.