In 2025, mobile traffic dominates the web, with over two thirds (66.02%)* of visits coming from smartphones. Yet, a staggering number of mobile landing pages frustrate users to the point of abandonment If your website isn’t optimised for mobile, you’re leaving money on the table. Following are 5 mobile website design mistakes you can avoid.

Trouble is when this heading makes a shift on the mobile view, it doesn’t quite work.

The two halves of the design stack on top of each other. Looks messy, with the CTA (call to action) not prominent as it should be, due to it being laid over the top of the guys head. The text is small and difficult to read too. By designing two headers, one for mobile view and another for desktop you can avoid frustrating your customers.

Here are five common mobile website design mistakes and how to fix them to boost conversions.

1. Cognitive overload: Too much on the screen

When shifting from desktop to mobile, many businesses try to cram all the same content into a much smaller space. The result? A visually dense, complex hero section that overwhelms visitors.

Solution:

Prioritise white space to maintain visual hierarchy.
Simplify content to only what’s necessary.
Use larger, readable fonts for clarity.
Show solutions, not just features, with a clean and digestible layout.

Creating a different header to appear on mobile gives the option to improve the user experience. Removing the image gives up more space for the text and allows us to engage it making it clear to read. we also now have the option to change text if needed. On this design the book a 30 min call was changed to ‘tap’ to book a 30 min call.

2. Poorly designed CTA buttons

Your call to action (CTA) button is the most important element of your landing page. If it’s too small, hard to tap, or blends in too much, users won’t engage. Worse, if it resembles an ad, users will ignore it due to “banner blindness.”

Solution:

Ensure the button is between 52-64 pixels in height.
Place the CTA in a prominent, easy to reach area.
Avoid making it look like an advertisement.
Use clear, action-driven language like “Try for Free” instead of generic text.

3. Overuse of animations

Animations and transitions look great on desktop but can slow down mobile experiences, leading to frustration. Overloading users with unnecessary animations or fancy loading screens often lead to drop-offs.

Solution:

Keep animations minimal and purposeful.
Avoid scroll hijacking or any effect that disrupts user flow.
Prioritise fast-loading pages over aesthetic gimmicks.

4. Showing the product instead of the problem

One of the many website design mistakes is including their software or app image inside a phone mockup. While this might work on desktop, on mobile, it leads to a confusing, “app-in-an-app” effect, making it harder for users to grasp the value quickly.

Solution:

Instead of displaying the full interface, highlight key features that solve problems.
Use a single, impactful visual that demonstrates the app’s benefit.

5. Desktop copy on mobile

Simply shrinking your desktop text to fit mobile screens isn’t enough. Mobile users have less patience and less screen space, meaning long, dense paragraphs will lose their attention quickly.

Solution:

Write separate, concise copy for mobile users.
Use shorter sentences and break text into digestible chunks.
Adjust wording to match mobile usage (e.g., “Tap here” instead of “Click here”).

Bonus: The sticky element myth

Many businesses assume that keeping sticky elements like the company logo or menu always visible improves navigation. However, these take up valuable screen space and can be distracting.

Solution:

Keep only essential sticky elements (like a bottom navigation bar or a back-to-top button).
Reduce header sises to maximise content space.

Optimising mobile onboarding for conversions

If your website includes a registration or sign-up process, long forms with too many fields can cause users to abandon ship. Instead, streamline onboarding for mobile users.

Solution:

Use one-step forms with minimal fields (e.g., just email to start).
Implement password-free login options like magic links.
Ensure checkboxes are large enough for easy tapping (32×32 pixels minimum).

Final thoughts: How to test your mobile UX

Optimising mobile UX isn’t a one-time fix-it requires constant testing and tweaking. Here’s how to ensure your mobile site works in real-life conditions:

Test it on an actual phone, not just by shrinking your desktop browser.
Check usability in bright sunlight and low-light environments.
Test on both iOS and Android devices.
Iterate based on user behavior and analytics.

By eliminating these five common mobile UX mistakes, you’ll create a seamless, conversion-friendly experience that keeps users engaged and maximises your revenue.

Do you need help designing a high-converting website? Book a free call using the link below or text, whats app or call 07368 392 650

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