SEO stands for "Search Engine Optimization," and it is the practice of optimizing a website to improve its visibility and ranking on search engine results pages (SERPs). The goal of SEO is to increase organic, or non-paid, traffic to a website by improving its ranking in search engine results.

SEO involves a range of techniques and strategies, including keyword research, content optimization, on-page optimization, link building, and technical optimization. By implementing these techniques, a website can improve its ranking and visibility in search engine results, making it easier for potential customers to find it when searching for related products or services.

Some of the key benefits of SEO include increased visibility, improved website traffic, higher conversion rates, and a better user experience. However, SEO is a long-term strategy and requires ongoing effort to maintain and improve its effectiveness.