Responsive design means a website’s layout automatically adjusts based on the visitor’s screen size — stacking content differently on a phone versus a desktop — rather than requiring a separate mobile-specific site, a technique detailed on web.dev (opens in new tab). It is essential given mobile-first indexing and the majority of local searches happening on phones.
One Site, Not Two Separate Ones
Older approaches sometimes built a completely separate mobile site at its own subdomain, which created duplicate content problems and doubled the maintenance work of keeping both versions accurate. Responsive design solves this by using one single set of content and code that simply rearranges itself, which is both easier to maintain and cleaner for search engines to evaluate.
It also means a single link shared anywhere — a QR code on a table, a WhatsApp message, a social post — works correctly no matter what device the person clicking it happens to be using.
People also ask
Is responsive design required for good SEO?
Effectively yes — given mobile-first indexing, a site that doesn’t adapt cleanly to mobile screens will be evaluated on that broken mobile experience for ranking purposes.
See also
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