SEO, or Search Engine Optimization, is a practice aimed at improving the visibility of a website or web page in search engine results. It involves various strategies and techniques to increase organic (non-paid) traffic from search engines like Google, Bing, and others. Here are some key aspects of SEO:

1. **Keyword Research**: Identifying relevant keywords that users are searching for related to your content.

2. **On-Page SEO**: Optimizing individual web pages to improve their search engine rankings, including factors like meta tags, headers, content quality, and keyword placement.

3. **Off-Page SEO**: Building backlinks from other websites, social media promotion, and other external factors that influence your site's authority and popularity.

4. **Technical SEO**: Improving technical aspects of your website such as site speed, mobile-friendliness, crawling, and indexing.

5. **Content Quality**: Creating high-quality, valuable content that satisfies user intent and engages your audience.

6. **User Experience (UX)**: Ensuring your website is easy to navigate, loads quickly, and provides a positive experience for visitors.

7. **Analytics and Monitoring**: Using tools like Google Analytics to track the performance of your SEO efforts and make data-driven decisions.

SEO is a dynamic field that evolves with changes in search engine algorithms and user behavior. Successful SEO requires a combination of technical expertise, creativity, and continuous adaptation to stay ahead in search engine rankings and drive organic traffic to your website.