Your mobile visitors can't convert if they can't use your site. We fix that.
63% of web traffic arrives on a phone. Most of that traffic bounces from sites built for desktop in 2018. Redefine builds responsive websites that load fast, work on every device, and turn mobile visitors into customers. We have done it 50+ times.
Share of global web traffic from mobile
63%
If your site is not responsive, you lose more than half your audience the second they arrive.
2.8s
Your target load time. We hit it on mobile.
4x
How much more likely bad mobile UX drives visitors away.

Half your audience is on a phone. Here is what they hit when your site is not built for it.
See the difference side by side. One experience drives visitors away. The other turns them into customers. The difference is not aesthetic. It is revenue.
What mobile visitors hit on a non-responsive site
The menu is impossible to use without pinching and zooming
Text is the size of a footnote. Reading it means zooming in on every paragraph.
Checkout button is cut off by the screen edge. Tapping it does nothing useful.
Images push past the screen. The page scrolls sideways on every load.
Google ranks your page lower because mobile visitors leave in seconds.
Result: 8 in 10 mobile visitors leave within 8 seconds
Navigation bar, overflows off screen
Hero image, overflows container
This text is completely unreadable at this size because the site was built for desktop only and never scaled for mobile viewports or touch interactions

These are the numbers your analytics show 90 days after a Redefine responsive build
Every metric below is from a live Redefine client project. Mobile traffic climbed 18 points. Mobile conversion jumped from 0.4% to 2.8%. Bounce rate fell from 82% to 34%. Your results will vary by industry and starting point. These are real numbers from a real build.
Mobile traffic
0%
+18 points since launch
Mobile conversion
0%
Up from 0.4%
Bounce rate
0%
Down from 82%
Pageviews
0%
+35% post-launch
Core Web Vitals · Mobile
LCP (Largest Contentful Paint)
Good0.0s
Under 2.5s — pages load fast enough to keep visitors on the page
FID (First Input Delay)
Good0ms
Under 100ms — the site responds to taps and clicks instantly
CLS (Cumulative Layout Shift)
Good0.00
Under 0.1 — content stays where it renders, no layout jumping
Device breakdown · Sessions
What you get on every responsive web design project
We design the mobile layout first. Then we build up to tablet and desktop. Your mobile experience is the primary product, not an adapted copy of the desktop version.
- Every button and link is large enough to tap without precision on the smallest phone
- Body text is always at least 16px. Readable on a 320px screen without zooming.
- Navigation collapses to a touch-friendly menu that works with a thumb, keyboard, or screen reader
Breakpoints tested
LCP, FID, and CLS are Google's page performance scores. Pass all three and you rank better in mobile search. Fail and you lose ground to any competitor who passes. Every Redefine build targets "Good" scores before the site goes live.
LCP target
Under 2.5 seconds
Images are compressed. Delivery runs through a fast CDN.
FID target
Under 100ms
The page responds to taps and clicks the moment they happen.
CLS target
Under 0.1
Nothing shifts or jumps after the page loads.
We test on physical iPhones and Android phones, not just browser emulation. Real devices catch problems that simulators miss. Your customers use real phones. We test on them.
- iOS Safari, Android Chrome, Samsung Internet, Firefox Mobile
- BrowserStack cross-browser compatibility testing across 100+ device configurations
- Touch, scroll, and gesture testing on physical hardware before any page goes live
Color contrast is checked. Keyboard navigation works everywhere. ARIA labels are in place. Screen reader compatibility is tested before launch. Accessibility is part of the design process. It is not a post-launch audit.
You receive complete Figma files at the end of the project. Every breakpoint is shown. Components are organized and layers are labeled. Your team builds from a clear source, not a screenshot or a memory of a meeting.
Responsive web design pricing
Every project is scoped before work starts. You receive a line-by-line proposal within 3 days. No hourly billing. No scope changes that inflate the invoice.
One BigCommerce engagement. Pageviews up 35%. Search rankings climbing.

Lizzy's Fresh Coffee
Ecommerce · BigCommerceLizzy's Fresh Coffee sells personalized and subscription coffee products direct to consumer on BigCommerce.
The problem
The site had payment errors on mobile checkout. Pages loaded slowly. The personalization feature that customers paid for did not work reliably on phones. Mobile visitors were leaving before they reached checkout.
What we built
One engagement covered a mobile-first responsive rebuild and a redesigned product customization / conversion path. We rebuilt the personalization engine for every device, optimized page speed to hit Core Web Vitals targets, and rebuilt checkout to complete in fewer taps on a phone.
The result
+0%
Pageviews in the months after launch
From one engagement that included the responsive redesign and the redesigned product customization / conversion path
- Search rankings improved as Core Web Vitals passed on mobile
- Mobile checkout conversion increased after the personalization feature was rebuilt for phones
- Page speed scores went from failing to "Good" across all three Core Web Vitals
Platform
BigCommerce · Responsive redesign
Most agencies say their sites are "responsive." Here is what that word actually means in practice.
Many agencies pass Chrome's mobile simulator and ship the project. That simulator does not catch the bugs your real customers hit on real phones. This table shows where the gap lives.
Mobile-first design process
Desktop-first, shrunk for mobile
Mobile designed first, then enhanced
Core Web Vitals optimization
Sometimes included, often not
LCP, FID, and CLS — all three Google performance scores — targeted on every project
Real device testing
Chrome DevTools emulation only
Physical iOS and Android device testing
WCAG 2.1 AA accessibility
Optional, often costs extra
Built into the design from the start. Not added after launch.
Figma responsive source files
One viewport only, sometimes
All breakpoints in Figma, full ownership transferred
Fixed-price project billing
Hourly or retainer, scope creep common
Scoped before work starts. Line-by-line proposal.
What buyers ask before hiring a responsive web design service
Mobile-friendly means the site loads on a phone without crashing. Responsive design goes further. The layout changes. Navigation collapses. Text resizes. Buttons grow to a tappable size. A desktop site with a few CSS tweaks is technically mobile-friendly. A responsive site is built for the phone first and for every screen from there.
A responsive redesign of an existing site runs 6 to 12 weeks depending on scope. A new responsive build runs 8 to 14 weeks. A targeted mobile optimization of specific pages runs 3 to 4 weeks. Every timeline includes cross-device testing and Core Web Vitals optimization. We agree on the timeline in the proposal before any work starts.
Yes, directly. Google ranks sites based on the mobile version first. A slow or broken mobile experience lowers your ranking even if your desktop site is fast. Google's Core Web Vitals scores, LCP, FID, and CLS, are confirmed ranking signals. A responsive site that passes all three outranks a non-responsive site on mobile search. Most search traffic is mobile.
Sometimes, but a targeted rebuild usually gives better results. Adding responsive CSS to a site designed for desktop produces fragile code. It looks fine in a browser simulator. Real iPhones and Android phones find the problems. A brief call tells us whether a retrofit or a clean responsive build fits your situation. We recommend what is actually needed.
Pricing depends on site size, platform, and scope of the responsive build. Submit a brief and receive a line-by-line proposal within 3 days. There are no hourly rates or scope creep charges. What we scope is what you pay.
No commitment. No pitch. A proposal you keep either way.
Tell us your current mobile performance. Describe what is not working on phones. Tell us what you need the site to do better. We scope the work and return a line-by-line proposal in 3 business days. It is yours to keep either way.
Call within 48 hours
A senior engineer reviews your brief and calls to confirm scope, timeline, and fit
Proposal in 3 days
Phase-by-phase plan with a clear timeline and fixed price
Sprint 1 within 1 week of sign-off
Mobile-first wireframes start the week you sign
Your team's time across a responsive design build is 2 to 3 hours per week: one sprint review, async device-testing feedback, and a final sign-off. We handle everything else.

Describe your mobile problem. We turn it into a build plan. No commitment. No pitch.
Tell us what is not working on your site for mobile visitors. Tell us what you need it to do. We return a line-by-line proposal within 3 business days. Keep it whether you hire us or not.
Get My Proposal in 3 Days