Digital marketing refers to the use of digital channels such as websites, social media, search engines, email, and mobile apps to promote products or services. It allows businesses to connect with a global audience in real-time and offers measurable results. Key strategies include Search Engine Optimization (SEO), Social Media Marketing (SMM), Pay-Per-Click (PPC) advertising, Content Marketing, and Email Campaigns. Compared to traditional marketing, digital marketing is more cost-effective, targeted, and interactive. It enables businesses to analyze user behavior, personalize messaging, and improve engagement. With the rise of smartphones and internet usage, digital marketing has become essential for business growth. Whether for small startups or large enterprises, it helps build brand awareness, generate leads, and boost sales efficiently in the digital age.