Search engine users read meta descriptions to decide which search result to click. Make your site inviting by keeping your descriptions short, relevant, and readable. To improve your SEO descriptions for search engines: Keep the text between 50-300 characters. Optimize your descriptions with keywords, but avoid keyword stuffing. Think about what your visitors are searching for, and how you can encourage them to click through to your site. For example, how does your site, page, or product solve a problem they have?