Mobile-first layouts tested on real devices. 60%+ of your traffic is mobile — and Google now ranks your mobile experience first. If your site fails on phones, you're losing both rankings and revenue.
We test responsive layouts on iPhones (SE to 15 Pro Max), Android devices, iPads, and desktops from 1280px to 2560px — plus zoom levels and orientation changes. Real device testing catches what DevTools emulators miss. Every site we build is mobile-first, not mobile-as-an-afterthought.
Trusted by 150+ clients across the US, UK, EU, Australia, Middle East and Asia. Async-first communication. Timezone-flexible scheduling. Invoiced in USD, GBP, EUR, AUD, AED or INR.
Over 60% of global web traffic comes from mobile devices. In some regions and industries, it's over 80%. And since Google switched to mobile-first indexing in 2019, it now crawls and ranks the mobile version of your site — not the desktop version. If your mobile experience is bad, your desktop experience is irrelevant.
What does "bad mobile experience" look like? Text that requires pinch-zoom. Buttons too small to tap. Images that spill off the screen. Forms that require endless scrolling. Navigation that hides the essential links. Layouts that shift when the page loads. All of these drive visitors away — and Google notices.
Most sites are "responsive" in the sense that they technically shrink to fit smaller screens. That's not responsive design — that's stretching the desktop layout and hoping it works. Real responsive design starts from mobile and builds up, using flexible grids, fluid images, proper touch targets, and CSS that adapts at every breakpoint.
We do it the correct way: mobile-first, real-device tested, and built for the way people actually use websites in 2026. Every site we ship is tested on iPhone SE to 15 Pro Max, Android devices, iPads, and desktop screens from 1280px to 2560px — plus zoom levels, orientation changes, and slow networks.
We work with startups, businesses and eCommerce brands across timezones — from New York and London to Dubai and Sydney. Async-first communication, fixed-price projects, and a senior team that tests on real devices, not just emulators.
Design starts at 375px (iPhone standard) and progressively enhances upward. Mobile-first forces clarity — if it works on the smallest screen, it works everywhere.
Full responsive build using CSS Grid, Flexbox, fluid typography (clamp), and container queries where relevant. No framework bloat, just clean modern CSS.
Your desktop site works but fails on mobile. We retrofit responsive CSS onto existing builds — no full rebuild needed. Much cheaper and faster than starting over.
Mobile-optimised product pages, cart and checkout. Touch-friendly filters, swipeable galleries, one-tap Apple Pay / Google Pay. 70%+ of eCommerce traffic is mobile.
Real device testing on iPhone SE through 15 Pro Max, Android (Pixel, Samsung), iPads, and desktops. Orientation changes, zoom levels, slow networks, and touch interactions all verified.
WCAG 2.2 AA compliance — semantic HTML, keyboard navigation, ARIA labels where needed, colour contrast ratios, and screen reader compatibility. Accessible sites rank better and serve more users.
We audit your current site on mobile — real devices, real networks. Then we plan the responsive strategy: breakpoints, layout patterns, touch targets, and progressive enhancement approach.
Design starts at 375px and scales up. We design real components in the browser — not flat mockups. You see exactly how it looks on a phone before we build anything.
Modern CSS — Grid, Flexbox, fluid typography, container queries. Then real-device testing across iPhone SE through 15 Pro Max, Android, iPad, and desktop screens. Every breakpoint verified.
Deploy with mobile analytics in place. We monitor mobile bounce rate, mobile conversion, Core Web Vitals on mobile, and Search Console's mobile usability report for 30 days.
Prices in USD. We also invoice in GBP, EUR, AUD, AED and INR. See all currencies on the pricing page.
For making one page (or a landing page) fully responsive across all devices.
3–5 days · Fixed scope
Start a Project →For building or rebuilding a full site with mobile-first responsive design.
1–3 weeks · Fixed scope
Start a Project →For retrofitting responsive design onto an existing desktop-only site, or complex builds.
2–5 weeks · Scoped per project
Request a Quote →Managing responsive sites for multiple clients? See Bulk Partner pricing.
We design starting at 375px and build upward. Most agencies design desktop first, then "make it work on mobile" as an afterthought — that's why most responsive sites feel clunky.
We test on iPhone SE through 15 Pro Max, Android (Pixel, Samsung), iPads, and desktop screens. DevTools emulators miss issues that real devices catch.
CSS Grid, Flexbox, fluid typography (clamp), container queries. No Bootstrap bloat, no Tailwind dependency. Clean, maintainable CSS that works.
Google now ranks the mobile version of your site. We build for Google's mobile-first indexing rules from day one — mobile usability, Core Web Vitals, and tap targets all verified.
We schedule calls around your timezone. Async-first communication so you're never waiting on a meeting to ship a change.
We invoice in USD, GBP, EUR, AUD, AED and INR. Pay via bank transfer, Wise, Stripe or PayPal — whichever suits your business.
iCONI Agency is backed by RdeLab Technologies Pvt Ltd — a technology firm with 10+ years of engineering experience and 150+ commercial websites delivered across 12 countries.
We build responsive sites the way we'd want ours built: mobile-first, real-device tested, and ready for Google's mobile-first indexing from day one.
More About iCONI →Tell us about your site. You'll get a clear scope, timeline and fixed price within 24 hours.