Mobile is the future of the internet, and it's the future of SEO too.
Why?
More searches are performed on mobile than desktop via Google. So more traffic from mobile, so take care of mobile users too.
You should focus on mobile: speed, responsive theme, and UX.
That's why, Google focuses on mobile so much: AMP, mobile speed ranking factor onwards July 2018, and mobile first indexing so on and on.
Hope you found the information useful.
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