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

You’ve built your website on your laptop. It looks beautiful. You shared the link with a friend, she opened it on her phone, and something felt off. Maybe the buttons weren’t where she expected them. Maybe the text was too small. Maybe the whole thing just felt cramped and hard to navigate. And here’s the thing, you probably didn’t notice it when you were looking at it on your own screen.

This is one of the most common things I hear from women solopreneurs: “I thought my website was fine until I looked at it on mobile.” There’s a weird disconnect between how a website feels on the device you built it on and how it actually behaves in the hands of someone trying to find you.

The good news? Mobile issues are incredibly fixable. And most of them are fixable once you know what to look for. You don’t need to be a web designer to spot these opportunities. You just need to see your website the way your actual visitors do, on the device they’re using.

I want to walk you through 10 mobile issues that slip past desktop viewing. These are the ones I see most often, and the ones that are easiest to address once you know they’re there. By the end, you’ll know exactly what to look for on your own site.

1. The “Sideways Scroll” Surprise

You’re reading a page on your phone, and suddenly you have to scroll sideways to see the whole thing. It’s jarring. It makes people feel like your site isn’t finished. And it’s almost always fixable.

This happens when something on your page is wider than the phone screen. It could be a long image, a table that wasn’t designed for small screens, or a piece of code that didn’t account for mobile sizing. When you’re looking at it on a desktop, everything fits fine. On a phone, it breaks.

Here’s what to do: pull out your actual phone (not just a browser preview) and scroll through your entire website. Pay attention to whether you ever find yourself sliding left and right. If you do, take a screenshot and send it to whoever maintains your site. That’s your starting point.

The opportunity here is that once you fix sideways scrolling, your site immediately feels more polished. It’s one of the quickest wins you can get.

2. Buttons That Are Too Small to Actually Tap

You know the experience, right? You’re trying to click a button on your phone, you tap it three times, and you keep missing it. The button is designed for a mouse, not a finger. And your visitors are having the same frustrating experience on your website.

On a desktop, a button can be 40 pixels tall and feel perfectly fine to click with a mouse cursor. On a phone, that same button is nearly impossible to tap without hitting something else. Fingers are wider than cursors. Mobile buttons need to be bigger.

The rule I use: on mobile, interactive elements (buttons, links, form fields) should be at least 48 pixels tall and 48 pixels wide. That’s big enough for an adult finger. If your buttons are smaller than that, you’re creating friction right where you want to make things easy.

When you’re testing your site on your phone, try actually tapping every button, every link, every form field. See if you can do it on the first try. If you find yourself having to tap twice, that’s your signal that there’s an opportunity to make it easier.

3. Forms That Don’t Fit the Screen

Mobile forms are their own special category of ouch. You load the page, and the contact form takes up about three-quarters of the screen. The submit button is cut off at the bottom. You have to scroll to see it. By the time you do, you’re annoyed.

The opportunity here isn’t to get rid of forms, it’s to make them actually work on mobile. That might mean:

• Breaking a long form into fewer fields (ask for what you actually need, not everything you could want)
• Making sure the submit button is visible without extra scrolling
• Using smart field types (like date pickers for appointment fields, number fields for phone numbers)
• Making sure the form doesn’t take up the entire screen

You want someone to be able to see at least one complete field, plus the submit button, at the same time. It’s a small thing, but it makes a huge difference in how many people actually fill out your form.

4. Text That’s Readable Only if You Zoom In

Small text on mobile isn’t just annoying, it sends a message: “This website wasn’t made for you.” Even if that’s not true, that’s how it feels.

On your desktop, 12-pixel font might be fine for body text. On a phone, it’s unreadable without pinch-zooming. And most people won’t pinch-zoom, they’ll just leave.

The opportunity is to make your primary text (the stuff people are supposed to read) at least 16 pixels on mobile. Smaller text, like captions or disclaimers, can go lower, but your main message should be easy to read without any extra effort.

When you’re testing on your phone, try reading a full paragraph without zooming. If you’re squinting, it’s too small.

5. Images That Look Blurry or Take Forever to Load

You carefully chose beautiful, high-quality images for your website. You know how important that is. But on mobile, a large image file that looks crisp on desktop takes 8 seconds to load on a phone with average connection speed. By then, your visitor has already left.

Here’s what a lot of people don’t realize: a 4000×3000 pixel image doesn’t look any better on a phone than a 1200×900 pixel image. Your phone screen can’t display that level of detail. But it will try to load all those pixels, which slows everything down.

The opportunity is to optimize your images for mobile. That means making sure image file sizes are appropriate for the device they’re being viewed on. A good web designer does this automatically, but if you’re managing your own site, it’s worth paying attention to.

Also, on mobile, images should scale down. A full-width image on desktop should become a narrower image on mobile, not a tiny version of the same image. It should fill the phone screen nicely, not look like a postage stamp.

6. A Navigation Menu That Doesn’t Work on Small Screens

Your desktop navigation is perfect, probably. You’ve got a nice horizontal menu across the top, maybe 5-7 menu items. On a phone, that same menu either gets squished into tiny text or it disappears entirely and you can’t figure out how to access it.

Many women find that their navigation menu is actually harder to use on mobile than on desktop. You have to hunt for it. Maybe it’s hidden behind a three-line hamburger menu icon that doesn’t look like a menu icon. Maybe the text is too small. Maybe the menu items overlap.

The opportunity is to make sure your mobile navigation is as intuitive as your desktop version. Common solutions include:

• A clear hamburger menu icon (three horizontal lines) that expands to show your menu when you tap it
• Large, clearly labeled menu items that are easy to tap
• A search function if your menu has a lot of items
• Keeping the menu accessible from every page (usually by keeping the hamburger icon visible at the top)

Test this on your actual phone: can you get to every main page of your website using only the mobile navigation? If not, there’s an opportunity to improve it.

7. The “Invisible” Contact Information

You’ve got your phone number somewhere on your website. On desktop, someone can see it, copy it, and call you. On mobile, they’re already holding the device they want to use to call you. But if your phone number isn’t clickable, they have to manually dial it. That’s friction.

The same goes for your email address and your physical address. On mobile, these should be:

• Phone numbers: clickable links that open the phone app to dial
• Email addresses: clickable links that open the email app
• Addresses: clickable links to maps

This is a simple opportunity that a lot of sites miss. It takes maybe 30 seconds to add, but it removes a barrier between someone wanting to contact you and actually doing it.

8. Videos That Don’t Respond to Screen Size

You embedded a beautiful video on your homepage. It looks perfect on your desktop monitor. On mobile, it either doesn’t fit the screen, or it loads very slowly, or both.

Videos should be “responsive,” which means they automatically adjust their size based on what device is viewing them. If a video isn’t responsive, it might be too wide for the mobile screen, or it might take forever to load because it’s trying to play a desktop-quality file on a phone.

The opportunity here is usually just making sure your video player is set to responsive. Most modern video platforms (YouTube, Vimeo) do this automatically if you embed them the right way, but it’s worth checking.

9. Header Images That Look Weird or Cut Off

You chose a stunning header image for your homepage. It’s the perfect width for a desktop screen. On mobile, it’s either stretched weirdly, or it’s cut off on the sides, or it looks like a tiny sliver at the top of the page.

Header images should be responsive too. They should look good on every screen size, even if that means they look different than they do on desktop. The important part should still be visible on mobile, not cut off from the sides.

The opportunity is to make sure your hero images (the big images at the top of pages) have a generous margin of space so that even if they crop differently on mobile, they still tell the story you want to tell.

10. Hover Effects That Don’t Exist on Touch Screens

On your desktop, you hover over a button and it changes color, or it grows slightly, or something happens to show you that it’s interactive. On mobile, there’s no hover. You tap a button. Either it works or it doesn’t. There’s no visual feedback that tells you it’s clickable before you touch it.

This is a small opportunity, but it matters. On mobile, buttons should look clearly like buttons even without hover. That might mean they have a visible border, or they’re a different color from the rest of the text, or they have a slight shadow. The point is that someone should be able to tell a button is a button before they tap it.

The Biggest Opportunity: See Your Site Like Your Visitors Do

Here’s what I want you to do: go pull out your phone right now. Not a preview in your browser, not a responsive design view. Your actual phone. Open your website. Then spend 15 minutes moving through it the way a visitor would.

Click the buttons. Fill out the forms. Try to find your contact information. See how long pages take to load. Scroll through text and see if it’s readable. Notice how you feel. Notice where the friction is.

This is the single best way to spot mobile opportunities that you can’t see on desktop. Your phone will tell you the truth that your laptop is hiding.

Once you know what you’re looking at, you have options. You can reach out to your web designer. You can tackle some of these yourself if you’re comfortable with that. Or you can book a time to talk with me about what you’re seeing and what makes sense to address first.

The point is that mobile issues aren’t failures. They’re opportunities to make your website work harder for you, and to make your visitors’ experience actually easy.

Frequently Asked Questions

How do I know if my website has mobile problems?

Pull out your actual phone and use your website like you’re visiting it for the first time. Try to navigate, click buttons, fill out forms, and read text without zooming. If anything feels hard or looks broken, you’ve spotted an opportunity.

Can I test mobile problems on my desktop?

Desktop browser tools are helpful for a quick look, but they don’t show you the real experience. A phone has a different screen size, different processor speed, different connectivity. Testing on your actual phone is the only way to be sure.

Do I have to fix all of these at once?

No. Start with the ones that bother you most or affect how people contact you. Mobile navigation and clickable contact information are usually good starting points because they directly impact how visitors interact with you.

Who should I talk to about fixing mobile issues?

If you have a web designer, they’re your first call. If you built your site yourself on a platform like WordPress or Wix, you might be able to fix some of these with built-in tools. If you’re not sure where to start, I can help you figure that out.

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

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