Which one is gramatically correct 'click on it' or 'click it'?

Which one is gramatically correct 'click on it' or 'click it'? click one of OneClick IT Consultancy: We Build Brands from Ideas we offering software development services in Web application, Travel portal , Mobile App Development clickbank log in Click one 578 followers on LinkedIn We Promote All Business and Products

clickbank log in clicks and hours Top Dairy Producer Turns To Deep Learning To Predict Daily Sales One of the world's top 10 dairy producers provides hundreds of products to

clickbank home Another way to say In One Click? Synonyms for In One Click  PPC stands for pay-per-click PPC is a form of online marketing where advertisers pay each time a user clicks on one of their ads