A mobile friendly website lets someone on a phone find what they need, tap it and act, without zooming, waiting or fighting a popup. Most small business sites “work” on mobile, but small problems quietly turn visitors away: buttons too close together, slow images, forms that bring up the wrong keyboard. This checklist covers ten common ones and how to fix each.
Key takeaways
- About half of Australian web traffic comes from phones, and Google ranks sites on their mobile version.
- Google retired its Mobile Usability report in 2023, so nobody warns you about these problems any more.
- The biggest culprits are small tap targets, popups, slow images and awkward forms.
- The best test is your own phone, on mobile data, trying to make an enquiry.
Why does mobile usability matter so much?
In October 2026, phones made up 48.6% of Australian web traffic, almost exactly level with desktop (StatCounter).
Google also looks at your site through a phone. It uses the mobile version of a site’s content for indexing and ranking (Google Search Central). If something is missing or broken on mobile, Google sees the broken version.
Here’s the “quiet” part. Google retired its Mobile-Friendly Test and Search Console’s Mobile Usability report on 1 December 2023 (Google Search Central Blog). The warnings many owners relied on are gone, so problems can sit there for months.
The mobile usability checklist
Which mobile problems cost the most customers?
1. Buttons and links too small to tap
Fingers are less precise than a mouse. The W3C’s accessibility standard sets a minimum target size of 24 by 24 CSS pixels and notes that meeting it makes touchscreens easier to use (W3C WCAG 2.2). Treat that as the floor. Your main buttons, such as “Call” and “Book”, should be much bigger, with space around them.
2. Popups that cover the page
A newsletter popup that fills the screen the moment someone arrives is the fastest way to lose them. Google advises against interstitials that obscure the whole page and says they “may lead to poor search performance” (Google Search Central). Use a small banner instead, or wait until the visitor has scrolled.
3. Slow, oversized images
A 4 MB photo straight off a camera might load fine on office wi-fi and crawl on 4G. Google’s “good” mark for the main content is to load within 2.5 seconds (web.dev). Our guide to core web vitals WordPress covers the fixes, and a quick website speed test shows where you stand.
4. Pages that jump while loading
You go to tap “Contact”, an image loads above it and you hit “Shop” instead. Usually it’s images without set sizes, or late-loading banners. Google’s measure for this, Cumulative Layout Shift, should stay at 0.1 or less.
5. Text that needs zooming
If visitors have to pinch to read, the page isn’t set up to scale to the screen. It’s usually a theme or settings problem, and fixing it once fixes every page.
6. A phone number you can’t tap
For many local businesses, the call is the conversion. Make the number a tap-to-call link everywhere it appears, including the header.
7. Forms that fight the keyboard
Mobile browsers can show a number keypad for phone fields when the form uses the right field type (MDN). Ask only for what you need, let autofill work and make error messages clear.
8. Sticky bars and chat icons that hide content
A sticky header, cookie bar and chat bubble can together cover a big part of a small screen. Keep one sticky element, and keep it slim.
9. Content missing on mobile
Some themes hide sections on phones to save space. Google says your mobile site should contain the same content as desktop. Use accordions or tabs to tidy it, rather than removing it.
10. Menus that are hard to use
Test that the menu opens, scrolls if it’s long and closes easily. Put your most important pages first.
How do I test my website on mobile?
- Use your own phone, on mobile data. Turn off wi-fi. That’s how most customers will see it.
- Do a real task. Find a service, then call or send an enquiry. Note every moment you hesitate.
- Ask someone else. Watch an older relative or a friend try the same task without help.
- Run PageSpeed Insights. Check the mobile result and its list of suggestions.
- Check Search Console. The Core Web Vitals report shows how real mobile visitors experience your pages.
Which fixes can I do myself?
Some are quick: turning off a full-screen popup, making the phone number tappable or resizing images before you upload them. Others sit in the theme, the page builder or the hosting, such as layout shifts, slow servers and hidden content.
That’s where website speed and improvement work earns its keep. Fast, well-tuned WordPress hosting in Australia also helps, because every page starts loading sooner. If your mobile site works but enquiries are flat, our guide to improve website conversion covers the next steps. Our website maintenance plans keep it all working after each update.
Frequently asked questions
How do I know if my website is mobile friendly?
Use it on your own phone, on mobile data, and try to make an enquiry. Then run PageSpeed Insights for the mobile score. Google’s old Mobile-Friendly Test was retired in December 2023, so a hands-on test matters more than it used to.
Is a responsive website the same as mobile friendly?
Not quite. Responsive means the layout adapts to the screen size. A site can be responsive and still have tiny buttons, slow images, covering popups and awkward forms. Mobile friendly means it’s genuinely easy to use on a phone.
Does mobile usability affect Google rankings?
Yes. Google indexes and ranks the mobile version of your site, and it says intrusive popups may hurt search performance. Slow mobile pages also show up in Core Web Vitals.
Do I need a separate mobile site or an app?
Almost never for a small business. A single responsive website that works well on phones is cheaper to run and easier for Google to understand. Apps make sense only when customers use them often, such as for repeat bookings.
Sources
- Desktop vs mobile vs tablet market share, Australia, StatCounter, October 2026
- Mobile site and mobile-first indexing best practices, Google Search Central
- The Search Console mobile friendly testing tool (retired), Google Search Central Blog, updated December 2023
- Understanding SC 2.5.8: Target Size (Minimum), W3C
- Avoid intrusive interstitials and dialogs, Google Search Central
- Web Vitals, web.dev
- input type=”tel”, MDN Web Docs