Responsive Design means a website automatically rearranges its layout, resizes images and adjusts text based on the screen it's viewed on so the same website works cleanly on a large desktop monitor, a tablet, and a small mobile phone, without needing a separate mobile version.
More than half of web traffic in India now comes from mobile devices. Google also uses mobile-first indexing, meaning it primarily evaluates the mobile version of your site to decide rankings a non-responsive site is actively penalized in search visibility.
Instead of fixed pixel widths, responsive sites use flexible grids, relative units, and CSS breakpoints that reshape the layout at specific screen widths stacking columns vertically on mobile, for instance, instead of squeezing them side by side.
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