Because Google uses your site's mobile version for indexing and ranking, and visitors on phones leave when reading or ordering is hard. A site that does not work well on mobile loses both its search visibility and its customers.
Step by step
- 1
Responsive design
One page that adapts to every screen, which is the design Google recommends because it is the easiest to build and maintain.
- 2
The same content
Show the same content on mobile as on desktop, because Google indexes the mobile version.
- 3
Reading and tapping
Text readable without zooming, buttons big enough for a finger, and space between links.
- 4
Speed on mobile
Test it with Google's PageSpeed Insights, because Core Web Vitals are used by Google's ranking systems.
- 5
Forms and contact
Few fields, the right keyboard for each field, and call and WhatsApp buttons that work with one tap.
- 6
Test on real devices
Android and iPhone in different sizes, on an ordinary connection rather than the fast office network.
Removing parts of the content from the mobile version to make it look simpler hurts the site, because Google relies on the mobile version for indexing, so it does not see what you removed.
- mobile responsive website
- my site looks bad on mobile