Ключевые слова: ab, advertising, analytics, audience, background, business, choosing, commercial, comparison, computer, concept, cross, design, diagram, digital, ecommerce, element, emblem, experiment, feedback, icon, idea, illustration, internet, isolated, letter, marketing, monochrome, nobody, object, rejected, research, result, selected, seo, sign, simple, split, study, symbol, technology, test, testing, tick, web, website,