What one in five smartphone-only users means for local websites
One in five UK adults only go online on their phone. If your website doesn't work well on a small screen, you're invisible to a big chunk of your customers.
Most business owners know their website should work on a phone. But knowing it and actually thinking through what that means for your customers are two different things.
Ofcom's research shows that one in five online adults in the UK rely solely on a smartphone for internet access. They don't have a laptop at home, they don't sit at a desktop, and they aren't going to "check your website properly later on a bigger screen." The phone is it. For everything.
When you combine that with the fact that smartphones now account for 77% of all UK adults' online time, the picture is pretty clear. If your website doesn't work well on a small screen, you're not just creating a slightly worse experience. For a significant number of potential customers, you're effectively invisible.
"Mobile-friendly" doesn't just mean the layout adjusts
When web designers talk about mobile-friendly, they usually mean responsive design: the layout rearranges itself so it fits a phone screen rather than looking like a shrunken desktop site. That's the bare minimum, and most modern websites do it by default.
But for a local business, being genuinely useful on a phone goes a lot further than that. A customer on their phone isn't casually browsing. They're usually trying to do something specific: find your phone number, check whether you cover their area, see if you do the thing they need, work out if you're open, or get in touch. They want answers, not a tour of your brand.
Google's research into UK local search behaviour found that business hours and contact details were among the most commonly searched local details, and that local searches often led to follow-up action quickly. That research is older now, but the behaviour it describes has only become more common. People search on their phone, they find you (or don't), and they act, all within a few minutes.
What phone-only users are actually dealing with
Think about what it's like to use a local business website on a phone, honestly. Not how it looks in your website builder's preview mode, but how it actually works when someone is standing outside, or sitting on the bus, or trying to sort something out while the kids are making noise.
Common frustrations that come up in consumer research and online discussions about local businesses include contact details that are hard to find or buried in a menu, pages that take too long to load on mobile data, text that's too small or too cramped to read comfortably, phone numbers that aren't tappable (so you have to memorise them and switch apps), and service descriptions so vague that you still don't know if the business does what you need.
These aren't problems that only affect people who are "bad with technology." They're basic usability issues that make it harder for anyone to use your site in the context where most local searches actually happen.
The gap between "it works on mobile" and "it works for mobile customers"
This is the distinction that gets missed most often. A site can technically work on a phone, everything loads, nothing looks broken, and still be a poor experience for someone trying to make a quick decision.
The UK government's SME research found that around a quarter of businesses that had adopted digital technology weren't fully using it. Websites are a good example of that pattern. The site exists, it was probably built by someone competent, but nobody has looked at it recently from the perspective of a real customer on a real phone trying to do something specific.
WebAIM's 2026 analysis of one million homepages found detectable accessibility errors on 94.8% of them, averaging 56.1 errors per page. Accessibility and mobile usability overlap heavily, because many of the same issues (small tap targets, poor contrast, missing labels, confusing navigation) affect both. A site that's hard to use for someone with a visual impairment is often also hard to use for someone squinting at a phone in bright sunlight.
What local businesses should actually check
If you want to know whether your site genuinely works for phone users, there are a few practical things worth testing. Don't just look at it in preview mode. Actually use it on your own phone and try to complete the tasks your customers would.
Can someone find your phone number within a few seconds? It should be visible without opening a menu, ideally tappable from the homepage. If a customer has to scroll or hunt, you'll lose some of them.
Do your services make sense on a small screen? Long paragraphs of text that work fine on desktop can become walls of grey on a phone. Break things up. Use clear headings. Make it scannable so someone can quickly find the bit that's relevant to them.
Is your contact method easy to use? If you have a form, does it work well on a phone? Are the fields big enough to tap? Does it ask for too much information upfront? A simpler form usually gets more responses than a long one.
Does your site load quickly on mobile data? Not everyone is on fast wifi. Large images, unnecessary scripts, and heavy page designs all slow things down, and slow pages lose people.
Do your opening hours appear without having to dig for them? For businesses where availability matters (shops, salons, cafes, clinics, any service with set hours) your hours should be visible on the homepage or very close to it. Ofcom's data on smartphone-only users makes this even more important: these customers may not have another way to check.
This isn't about perfection
No website is perfect on every device, and nobody expects a local joiner or accountant to have the same mobile experience as Amazon. But the bar for "good enough" on mobile is actually quite low. Clear contact details, readable text, a phone number you can tap, a straightforward explanation of what you do, and a simple way to get in touch. That covers most of what a mobile customer needs.
The businesses that lose out aren't usually the ones with ugly websites. They're the ones with websites that make it just slightly too hard to find the answer or take the next step. On a phone, "slightly too hard" is enough to send someone back to the search results.
If you're not sure how your site holds up, try it yourself. Open it on your mobile, pretend you've never heard of your business, and try to answer the basics in under thirty seconds: what do they do, where are they, are they open, and how do I contact them? If you can't, your customers probably can't either.