Mobile usability affects how easily visitors can read, navigate, compare and complete actions on a small screen. A desktop layout that merely shrinks is rarely enough.
This practical guide explains mobile website usability through clear priorities, ownership and measurement.
Test real customer tasks
Test real customer tasks requires a clear definition of the customer or business outcome. Document the current position, the person responsible and the evidence that will show whether the approach is working. Make one proportionate improvement at a time and compare results over a suitable period.
Check responsive layout
Check responsive layout requires a clear definition of the customer or business outcome. Document the current position, the person responsible and the evidence that will show whether the approach is working. Make one proportionate improvement at a time and compare results over a suitable period.
Improve navigation and tap targets
Improve navigation and tap targets requires a clear definition of the customer or business outcome. Document the current position, the person responsible and the evidence that will show whether the approach is working. Make one proportionate improvement at a time and compare results over a suitable period.

Optimise forms and keyboards
Optimise forms and keyboards requires a clear definition of the customer or business outcome. Document the current position, the person responsible and the evidence that will show whether the approach is working. Make one proportionate improvement at a time and compare results over a suitable period.
Protect speed and stability
Protect speed and stability requires a clear definition of the customer or business outcome. Document the current position, the person responsible and the evidence that will show whether the approach is working. Make one proportionate improvement at a time and compare results over a suitable period.

Test accessibility and devices
Test accessibility and devices requires a clear definition of the customer or business outcome. Document the current position, the person responsible and the evidence that will show whether the approach is working. Make one proportionate improvement at a time and compare results over a suitable period.
Implementation checklist
- Define the objective and audience.
- Assign an accountable owner.
- Use reliable data and customer feedback.
- Document decisions and review dates.
A mobile audit should focus on successful tasks, not screenshots alone. Test with real devices, realistic conditions and representative users.