With the majority of internet browsing happening on mobile devices, a website that doesn't work well on phones is practically invisible. Mobile optimization means your site loads quickly, text is readable, buttons are tappable, and navigation is smooth on any screen size.
Google now uses mobile-first indexing, meaning it ranks your mobile version before your desktop version. If your mobile experience is poor, your rankings suffer. The solution is responsive design — a single website that automatically adapts to phones, tablets, and desktops. A mobile-friendly site doesn't just improve user experience; it directly boosts conversions, since most purchases and sign-ups now happen on mobile.