The Short Answer
The only reliable test is using your own website on your own phone, the way a stressed, distracted prospective client actually would — not glancing at how it looks on a desktop monitor. Most law firm websites that fail this test were originally designed desktop-first, with mobile treated as an afterthought squeezed in later.
The Real Test: Five Minutes on Your Own Phone
Pull up your homepage on your phone with data, not wifi, to simulate a realistic connection. Time how long it takes to load. Then try to find your phone number and tap it — does it dial directly, or do you have to copy and paste a number buried in a footer? Try to find your contact form in under two taps from the homepage.
If any of that took real effort, a distracted visitor stuck in traffic on the Lions Gate Bridge after a collision, or scrolling on the SkyTrain, experienced the same frustration — and most of them simply leave. This connects directly to whether your current website is losing you clients.
What 'Mobile-First' Actually Means, Beyond Just Fitting the Screen
A genuinely mobile-first site isn't just a desktop layout that resizes to fit a smaller screen — it's designed from the ground up around what a phone user actually needs: a tappable phone number in the header, a contact form that doesn't require excessive scrolling, text sized to be readable without zooming, and load times fast enough that an impatient visitor on a spotty connection doesn't give up before the page finishes rendering.
This is treated as a foundational requirement, not an afterthought, in every site built through AI website design for Vancouver law firms — because for a heavily transit-dependent, densely built city, mobile isn't a secondary use case. It's often the primary one.