How Do I Know If My Website Is Actually Mobile-Friendly?

Test 1: PageSpeed Insights, Mobile Score

Run your homepage and a product page through Google's PageSpeed Insights and read the mobile score specifically, not desktop. This is the closest thing to an objective quality measure available for free. Clearing the 'good' thresholds for Core Web Vitals on mobile matters considerably more than chasing a perfect score.

Test 2: Complete a Purchase on Cellular Data

This is the test almost nobody runs, and it's the most revealing. Turn off WiFi. Use your actual mobile connection. Browse, add to cart, and complete a real purchase end to end. Office WiFi hides slow loading entirely, which means it hides the single most common mobile problem.

Test 3: Use It One-Handed, Thumb Only

Hold the phone in one hand and navigate using only your thumb. Can you reach the menu? Are the buttons big enough to hit accurately? Do form fields stay visible when the keyboard appears, or does the field you're typing in disappear behind it? These are the failures that quietly push people away, and they're invisible when you're testing with two hands at a desk.

• — PageSpeed Insights mobile score — green or red?
• — Full purchase completed on cellular data, not WiFi
• — One-handed, thumb-only navigation through the whole flow
• — Text readable without zooming
• — Digital wallet payment available, or manual card entry required?

Test 4: Check for a Digital Wallet Option

Typing a sixteen-digit card number, expiry date and security code on a phone is the single most abandoned moment in mobile commerce. If your checkout requires it, that's a specific, fixable revenue problem rather than a general usability concern. One-tap wallet payment removes the step entirely and is typically the highest-impact mobile improvement available.

Test 5: Compare Your Own Conversion Rates

Open your analytics and compare mobile and desktop conversion rates directly. Some gap is normal across the industry — mobile captures more browsing and discovery traffic while desktop captures more decided buyers. But a large divergence usually points at specific friction rather than inherent mobile behaviour, and that friction is worth finding.

Why This Matters More Than It Used To

Google indexes the mobile version of your site for ranking purposes, so mobile problems are SEO problems as well as conversion problems. And with mobile carrying the majority of e-commerce traffic, a mobile-specific fault affects most of your visitors rather than a minority.

Building Mobile-First Properly — With Devrex Digital

Devrex Digital builds stores designed for the phone screen first rather than scaled down from a desktop layout — wallet payment, autofill, thumb-reachable navigation, and performance tuned for cellular connections. If your mobile conversion trails desktop significantly, that gap is measurable revenue on the majority of your traffic.