10 Mobile Website Problems That Are Easy to Miss on a Desktop

You launch your website on your laptop, click around, everything looks perfect. Then a client texts you: “Your contact form isn’t working on my phone.” Or worse, you’re scrolling on your own phone and realize your beautiful homepage looks like a tangled pile of spaghetti on mobile.

That feeling? That moment when you realize your website is showing a completely different version of you depending on how someone views it? That’s frustrating. It feels like you’re presenting yourself differently to different people, and not in a good way. You’re not being intentionally misleading, it’s just that what you see on your desktop is literally not what half your visitors are experiencing.

This is one of the biggest opportunities I see when I look at websites for women solopreneurs. We build, we test on our computers, we feel great about it, and then real people visit on their phones and something breaks. Or something works, but it’s so tiny you can’t read it. Or the whole thing scrolls sideways like you’re playing a video game. And you never even knew because you weren’t looking at it the right way.

The good news? These problems are not hard to catch once you know what to look for. You don’t need to be a tech expert. You just need to know where to look.

Why This Matters More Than You Think

Here’s the thing nobody talks about: your phone behavior is your client’s phone behavior. You probably check your website the way you check other websites, on your computer. But your potential clients, your past clients, your referral partners, people just checking you out at 8 PM on their couch, they’re all on phones.

A lot of business owners I talk to think “mobile friendly” just means “it doesn’t look completely broken.” But mobile friendly isn’t just about not breaking, it’s about your website actually working the way you want it to work. It’s your opportunity to show up for people exactly as you are, whether they’re viewing you on a massive desktop monitor or a phone in a coffee shop.

This connects directly to something I care deeply about: your website should fit you. Part of fitting you is actually working for the people who want to find you, work with you, or reach out to you. If your site only works beautifully on desktop, you’re only serving the people who happen to be at their desks.

Let me walk you through the 10 mobile problems I see most often that stay completely hidden until someone checks on a phone.

1. Your Navigation Menu Is Impossible to Tap

This is number one because I see it everywhere, and it’s the fastest way to lose someone’s attention.

On desktop, your menu looks like a clean horizontal bar at the top. It feels spacious, elegant, organized. Then on mobile, those same menu items get squished into a teeny space, and the actual clickable area is maybe 2 millimeters. Your visitor’s trying to tap “Services” and hits “Contact” instead. They try again. It’s frustrating. They leave.

The opportunity here is to make sure your mobile menu is actually designed for thumbs, not fingers. I’m talking about buttons that are at least 44 pixels tall, ideally bigger. I’m talking about enough breathing room between menu items so you can actually hit what you’re aiming for.

Some websites collapse the menu into a hamburger icon (those three horizontal lines), which is great if it’s done well. But I’ve seen hamburger menus that don’t actually expand into anything readable, or they open and the text is so small you still can’t read it without squinting.

2. Images Are Stretched, Squished, or Disappearing Entirely

You picked a gorgeous hero image for your homepage. It looks perfect on your monitor, bold and beautiful and exactly the right size. Then you look at it on your phone and it’s either:

• Stretched sideways until it looks distorted and weird
• Squished so small you can barely see what it is
• Cut off on the sides so you’re only seeing half the image
• Not showing at all (which usually means a tech issue, but still counts as a mobile problem)

This happens because images need specific instructions to behave differently on small screens than they do on large ones. Without those instructions, the image just scales itself however it wants, and it doesn’t always look good.

The opportunity is to make sure your images are responsive, which means they resize intelligently depending on the screen size. Your hero image shouldn’t be the same size on a phone as it is on a desktop. It should be taller and narrower, not stretched. Your product photos or your headshot should still be beautiful and clear, not pixelated or unrecognizable.

3. Text Is So Small You Need Magnifying Glasses

I know this sounds obvious, but I’m telling you, it’s everywhere. Body text that looks totally readable on a 27-inch monitor becomes ant-sized on a 5-inch phone. You have to zoom in to read a single paragraph.

Your visitors aren’t going to zoom in. They’re going to leave.

The minimum font size for body text on mobile should be at least 14-16 pixels. Headings should be bigger. And the line spacing, that breathing room between lines, should be more generous on mobile than on desktop so the text doesn’t feel cramped.

This is an opportunity to make sure your website is actually readable by the humans visiting it. Because readability isn’t a nice-to-have, it’s foundational.

4. Your Forms Are Impossible to Fill Out

You have a beautiful contact form on your website. It has fields for name, email, phone, message, all organized perfectly. On desktop, someone can fill it out in 30 seconds flat. On mobile? It’s a nightmare.

The fields are so narrow that the text you’re typing appears one letter at a time in a tiny sliver. The form requires you to tap on a tiny dropdown menu to select something. The keyboard keeps covering up the field you’re trying to fill in. The submit button is so small you tap it three times before it registers.

These are all opportunities to optimize your form for mobile users. Wider input fields, better dropdown menus, larger buttons, keyboard behavior that doesn’t hide what you’re typing, placeholder text that’s actually helpful.

A lot of business owners I talk to don’t realize how many potential clients start to fill out their contact form on mobile and then just give up. They’re interested, they want to reach out, but the form is too painful. So they close it and you never hear from them.

5. Your Call-to-Action Buttons Are Too Small or in the Wrong Place

The button you want people to click, the one that says “Book a Call” or “Let’s Talk” or “Get Started,” might look perfectly sized and positioned on your desktop. But on a phone, it’s either:

• So small that it’s hard to tap without hitting something else
• So far down the page that people scroll past it without noticing
• Lost in the middle of other elements so it doesn’t stand out
• At the bottom of the page where people who are skimming never go

Your call-to-action button is one of the most important elements on your website. It’s the actual bridge between “I’m interested in what this person offers” and “I’m going to reach out.” On mobile, this button needs to be even MORE noticeable than it is on desktop, because mobile visitors are scrolling fast and attention spans are shorter.

The opportunity is to make sure your primary CTA button is prominent, tappable (at least 48 pixels tall), and positioned where mobile users will actually see it. Many times this means repeating your CTA button in a couple of strategic places, not just at the bottom.

6. Your Website Scrolls Horizontally (Instead of Vertically)

This is one of the most annoying mobile experiences. You open the website on your phone and instead of scrolling down like a normal human being, you have to scroll sideways. Left, right, left, right, hunting for the content.

This almost always happens because something on the page is too wide for the phone screen. Maybe it’s an image, a video, a table, a long line of text without word breaks, or an element that was built without thinking about mobile at all.

When your website requires horizontal scrolling, you’re basically saying to your visitor, “This website wasn’t built with you in mind.” And they’re going to leave.

The opportunity here is to audit every element on your site and make sure nothing extends beyond the width of a phone screen. This is a foundational thing, and it’s very fixable once you know to look for it.

7. Your Photos Look Blurry or Pixelated on Retina Displays

Modern phones have high-resolution screens, which is amazing for viewing beautiful images. But it also means that if you’ve uploaded a low-resolution photo, it’s going to look pretty rough on mobile.

You might not notice this on your desktop because the resolution there is different. But on a phone, that headshot or product photo you spent money on suddenly looks like it was taken in 1997.

This is an opportunity to make sure you’re using images that are high enough quality to look good on any device, but optimized so they don’t slow down your page load.

8. Videos Don’t Play, or They Play in a Tiny Box

You embedded a beautiful video on your website. It plays perfectly on your computer. Then on mobile, either:

• The video doesn’t play at all (usually a format issue)
• It plays but in a box so small you can’t actually see what’s happening
• It plays full-screen and covers up your entire content
• The play button isn’t visible or doesn’t work

Video is powerful on a website, but only if it actually works. The opportunity is to make sure your video is embedded in a way that’s responsive, that the player works across all devices, and that there’s a clear way for people to interact with it.

9. Your Footer Information Disappears or Becomes Unreadable

Your footer on desktop might have three columns of information, contact details, social media links, maybe a mini newsletter signup. On mobile, this often becomes a jumbled mess where the columns stack on top of each other, or the text is so small it’s not readable, or the links are so close together that you can’t tap one without hitting the others.

The opportunity is to reorganize your footer for mobile so that information is actually findable and tappable. Sometimes this means reducing what you show on mobile (which is okay), sometimes it means reordering it, sometimes it just means making sure there’s enough space between elements.

10. Your Page Takes Forever to Load on Mobile

You might not think of load speed as a “mobile problem,” but it is. Websites often load faster on desktop because the connection is more stable and the processing power is different. On mobile, with a slower connection, a site that loads instantly on your computer might take 5, 10, or even 15 seconds to fully load.

People don’t wait. A lot of business owners I talk to don’t realize that their visitors are abandoning the site before it even finishes loading.

This is an opportunity to optimize your images, your code, your hosting, whatever is slowing things down. It makes a real difference in whether people actually see what you’re offering.

How to Catch These Problems Yourself

You don’t need to hire anyone to check for these issues. You just need to be intentional about how you test your site.

First, open your website on your phone right now. Not on your computer, on your actual phone. Scroll through the entire site like a visitor would. Look at each page. Try to click things. Try to fill out your forms. Try to find your contact information. Actually tap your call-to-action buttons.

Notice what feels easy and what feels frustrating. Trust that feeling. If something feels hard to you, it’s going to feel hard to your visitors too.

Second, rotate your phone to landscape mode and look at your site that way. Not everyone does this, but some people do, and your site should look good both ways.

Third, if you want to be really thorough, ask a friend to look at your site on their phone and just tell you what they notice. Sometimes an outside perspective catches things you’ve gotten used to.

And fourth, if you want technical details, most modern web browsers let you view your website in “mobile view” or “responsive view” right from your desktop. In Chrome, this is usually Ctrl+Shift+J (or Cmd+Shift+J on Mac). You can then resize the view to see how your site looks at different phone sizes.

This is one of those situations where I make it easy, and the biggest geek who speaks human will tell you: if you notice these issues, you’re not doing anything wrong. Your website is just showing you an opportunity to show up better for the people who want to find you.

Why Your Website Designer Should Be Checking This Too

If you built your website yourself on a platform like Squarespace or Wix, mobile testing is totally within your reach. But if someone else built it for you, here’s what I want you to know: any competent web designer should be testing on mobile as part of their regular work. If you hired someone and they never asked about mobile, or they didn’t test it, that’s an opportunity to ask them to fix it or find someone who will.

This goes back to something I feel strongly about: it’s YOUR website. You should understand what’s working and what’s not. You should be able to see your site the way your visitors see it. And if something isn’t working, you should know.

Making the Fix

Some of these issues are simple fixes that you can make yourself if you’re comfortable in your website platform. Some require a little more technical knowledge. And some might require going back to whoever built your site and asking them to fix it.

The point is, you don’t have to live with a website that works great on desktop but falls apart on mobile. That’s not a limitation you have to accept. It’s an opportunity to make your website actually work for everyone who finds it.

Your website is your first impression. It’s how people who’ve never met you get to know what you do and how you work. That first impression should look the same whether they’re viewing it on a laptop at their desk or on their phone in a waiting room. It should feel like you, work smoothly, and make it easy for someone to reach out.

That’s not a lot to ask. And it’s absolutely achievable.

Frequently Asked Questions

What if my website is on Wix or Squarespace? Do I need to worry about mobile as much?

Those platforms are built with mobile in mind from the start, which is great. But that doesn’t mean everything automatically works perfectly on mobile. You still need to test it yourself and make adjustments. Most of these platforms have mobile-specific settings where you can preview and customize how your site looks on phones.

Is it too late to fix my website if it’s already live?

No, it’s not too late. In fact, fixing these issues is one of the most common things I help people with. You can update, test, and improve your website anytime. Every update is an opportunity to make your site work better for your visitors.

Do I really need to test my website on multiple phone sizes?

You don’t need to be obsessive about it, but yes, it’s worth checking on a couple of different sizes if you can. A lot of people have iPhones, but some have larger Samsung phones or older phones with smaller screens. The closer your site works across those variations, the better.

If I can’t fix these issues myself, how do I know if my web designer is charging me fairly to fix them?

That’s a great question. Most of these fixes are not huge projects. If someone’s quoting you thousands of dollars to fix mobile responsiveness issues, get a second opinion. If you’re not sure whether your designer’s quote is fair, let’s talk about it. I can help you figure out what’s reasonable.

If your website no longer feels like you, let’s talk about it – Book a Free Website Clarity Call with Beth →