There was a time when designing a website meant designing for a desktop monitor, then squeezing it down to fit a phone screen afterwards. That approach made sense when mobile traffic was a small fraction of the total. It doesn’t make sense anymore.
The numbers speak for themselves
Depending on your industry, somewhere between 55% and 75% of your website visitors are using a mobile device. For local businesses — the kind that people search for while out and about — that number skews even higher. If your website doesn’t work brilliantly on a phone, most of your visitors are having a poor experience.
What mobile-first actually means
Mobile-first design means starting the design process with the smallest screen and working up to larger ones. This isn’t just a technical preference — it fundamentally changes how you think about content and layout.
When you design for desktop first, you have all the space in the world. It’s easy to add sidebars, decorative elements, and sprawling navigation menus. Then when you try to squeeze all of that onto a phone, things break. Content gets hidden, buttons become too small to tap, and the page takes ages to load because it was designed for a fast broadband connection.
When you design for mobile first, you’re forced to prioritise. What’s the most important information on this page? What action do we want the visitor to take? What can we cut? The result is a cleaner, more focused experience that works beautifully on every device.
It’s not just about screen size
Mobile-first design also means thinking about:
- Touch targets — buttons and links need to be large enough to tap accurately with a thumb
- Load times — mobile connections can be slow, so every kilobyte matters
- Thumb reach — important actions should be within easy reach of a one-handed grip
- Context — mobile users are often on the go, so they need information fast
Google cares about mobile too
Since 2019, Google has used mobile-first indexing, meaning it primarily looks at the mobile version of your website when deciding how to rank it. If your mobile experience is poor — slow, hard to navigate, or missing content — your search rankings will suffer regardless of how good your desktop site looks.
What you can do
Pull out your phone right now and visit your own website. Navigate to a few pages. Try to find your contact details. Try to read a full page of content. If anything feels clunky, slow, or frustrating, your customers are feeling the same thing.
At Red Web Cambridge, every website we build starts with mobile. The result is sites that feel natural on a phone, look fantastic on a tablet, and shine on a desktop. If your current site isn’t mobile-friendly, let’s talk about fixing that.