Digital marketing involves promoting products and services through digital channels like search engines, websites, social media, email and mobile applications. It differs from traditional marketing in that it uses analytical tools to understand which marketing methods are effective. Digital marketing allows precise targeting of audiences and provides constant access to information about a brand from any location. It also exposes customers to what others say about a brand online, where reputation is critical and either positive or negative messages spread quickly. Measurement of conversion rates through real-time analytics helps digital marketing companies in Noida and Delhi improve customer engagement and optimize websites at low cost compared to traditional marketing.