1. Search Engine Optimization (SEO)
SEO stands for Search Engine Optimization, which is the process of optimizing a website's content, technical configuration, and link popularity to make it more relevant and findable to search engines. The goal of SEO is to improve a website's ranking in organic search results.
On-page SEO
Optimizing content elements (quality of content, keyword usage, and topical relevance) and HTML source code (meta tags and HTML) to rank higher in search results and attract more relevant traffic
Technical SEO
Managing the technical backend of a website so that it can be crawled, indexed, and understood by search engines
Off-page SEO
Bringing attention to content, such as earning links and citations from high quality third-party sites, and managing link disavowal

2. email marketing
Email marketing is a direct digital marketing method that uses emails to engage with a business's audience. It involves sending promotional or informational content to create product or brand awareness and generate leads or sales.
Email marketing can be used to: inform customers, increase brand awareness, promote specific products and services, build relationships, and drive customer action.

3. Social media marketing

Social media marketing (SMM) is the use of social media platforms to build a company's brand, increase sales, and drive website traffic. SMM is also known as digital marketing and e-marketing.