Glossary
Responsive Design
A website design approach where the layout automatically adjusts to look great on any screen size — desktop, tablet, or mobile.
Responsive Design
Responsive design means a website's layout automatically adapts to fit any screen size using flexible grids, images, and CSS media queries.
A responsive website looks correct on a 27-inch desktop monitor and a 5-inch phone screen without requiring separate mobile and desktop versions.
Why Responsive Design Matters
- Google requires it — Mobile-first indexing means Google ranks the mobile version of your site
- Most users are mobile — 60%+ of web traffic now comes from mobile devices
- One codebase — easier to maintain than separate mobile/desktop sites
Is My Website Responsive?
Test at Google's Mobile-Friendly Test. You can also resize your browser — a responsive site reflows content as you narrow the window.
Cost of Responsive Design
All modern website builders (Wix, Squarespace, Webflow) are responsive by default. For custom-built websites:
- Adding responsiveness to an existing non-responsive site: $500–$5,000
- Building responsive from scratch: included in standard development cost
See our Website Cost Calculator to estimate your total project cost.
Related Articles
- Web Design Cost in 2026 — what responsive design costs from a professional
- How Much Does a Website Cost in 2026? — full pricing guide
- WordPress vs. Wix Comparison — both platforms are responsive by default
- What is a CMS? — how CMS platforms handle responsive design