Sustainability refers to the practice of meeting the needs of the present generation without compromising the ability of future generations to meet their own needs. It involves adopting strategies and practices that promote environmental, social, and economic well-being in a balanced and long-term manner. In the context of internet marketing and SEO, sustainability can be achieved by implementing ethical and responsible strategies that prioritize long-term success, such as creating high-quality and relevant content, building organic and natural backlinks, and optimizing websites for user experience and accessibility.