SEO stands for Search Engine Optimization. It refers to the practice of optimizing a website or web page to increase its visibility and ranking on search engine results pages (SERPs). The goal of SEO is to attract organic (non-paid) traffic from search engines by improving the website's relevance and authority in relation to specific keywords or topics.

SEO involves various techniques, including keyword research, on-page optimization (such as optimizing title tags, meta descriptions, headings, and content), off-page optimization (such as building high-quality backlinks), technical optimization (such as improving site speed and mobile-friendliness), user experience optimization, and more.

By implementing effective SEO strategies, businesses can improve their online presence, drive more targeted traffic to their websites, and ultimately increase conversions and revenue.