Digital marketing encompasses a wide range of strategies and techniques to promote products or services online. Here are 20 key elements of digital marketing:

1. Website: A well-designed and user-friendly website serves as the foundation of your online presence. It’s the hub where visitors can learn about your business and its offerings.
2. Search Engine Optimization (SEO): This involves optimizing your website and its content to rank higher on search engine results pages (SERPs) for relevant keywords. This helps increase organic (non-paid) traffic.
3. Content Marketing: Creating and distributing valuable, relevant content to attract and engage a target audience. This can include blog posts, articles, videos, infographics, and more.
4. Social Media Marketing: Utilizing social platforms like Facebook, Instagram, Twitter, LinkedIn, etc., to promote your brand, interact with your audience, and drive traffic to your website.
5. Email Marketing: Sending targeted messages and promotions to your subscribers to nurture relationships, provide value, and drive conversions.
6. Pay-Per-Click Advertising (PPC): Running paid advertisements on search engines (like Google Ads) or social media platforms. Advertisers pay a fee each time their ad is clicked.
7. Display Advertising: This involves creating visual ads (such as banners) that appear on websites, apps, or social media platforms. These ads can be static or interactive.
8. Affiliate Marketing: Partnering with individuals or other businesses to promote your products or services in exchange for a commission on sales generated through their efforts.
9. Influencer Marketing: Collaborating with individuals who have a significant following and influence in your industry or niche to promote your products or services.
10. Video Marketing: Using video content to engage and connect with your audience. This can be through platforms like YouTube, social media, or embedding videos on your website.
11. Mobile Optimization: Ensuring that your website and content are easily accessible and navigable on mobile devices, given the prevalence of mobile internet usage.
12. Analytics and Data Analysis: Monitoring and analyzing user behavior on your website or app to understand what works and what doesn’t. Tools like Google Analytics are commonly used for this purpose.
13. Conversion Rate Optimization (CRO): The process of optimizing your website or landing pages to increase the percentage of visitors who take a desired action, like making a purchase or filling out a form.
14. Customer Relationship Management (CRM): Using tools and strategies to manage and nurture relationships with your customers, often through personalized communication and targeted offers.
15. Chatbots and AI-Powered Customer Service: Using artificial intelligence to automate customer service inquiries, provide instant responses, and guide users through the sales process.
16. Social Proof and Reviews: Showcasing positive feedback, testimonials, and reviews from satisfied customers to build trust and credibility.
17. Local SEO and Online Listings: Ensuring your business is visible in local searches and that your information is consistent across various online directories and listings.
18. Remarketing/Retargeting: Targeting users who have previously interacted with your website or app with specific ads to re-engage them and encourage conversions.
19. Augmented Reality (AR) and Virtual Reality (VR): Using immersive technologies to create interactive and engaging experiences for users.
20. Artificial Intelligence and Machine Learning: Utilizing advanced algorithms and technologies to automate tasks, personalize user experiences, and optimize marketing efforts.

Keep in mind that the effectiveness of each element may vary depending on your industry, target audience, and specific goals. It’s often beneficial to use a combination of these elements in a cohesive digital marketing strategy.