For ux optimization you want your site To be mobile friendly this means that When people look at your site on mobile It looks normal everything fits on the Page the fonts aren’t too big or too Small stuff like that use Google’s free Mobile Friendly Checker tool to see how Your site performs in Google’s eyes make Sure you don’t have any intrusive Interstitials intrusive what this is When you have a bunch of pop-ups and Display ads freaking dominating the page On mobile don’t do that in fact I turned Off all pop-ups on mobile it’s just not Worth it