A meta description is an HTML meta tag that provides a concise summary of a web page's content. Search engines may display this description in search results below the page title, giving users a preview of what they will find on the page. While meta descriptions do not directly influence search rankings, they significantly impact click-through rates.
Effective meta descriptions are between 150 and 160 characters, include relevant keywords naturally, accurately summarize the page content, and contain a compelling reason for users to click. Each page should have a unique meta description that distinguishes it from other pages on the site. Copywriting for SEO books on Amazon cover writing techniques.
Search engines do not always use the provided meta description. If Google determines that a different snippet from the page content better matches the user's query, it may generate its own description. This behavior means that meta descriptions should be written for the most common search queries that lead to the page.
For URL shortening services, meta descriptions on content pages should clearly communicate the value proposition. A glossary page's meta description might highlight the breadth of topics covered, while an article's description should summarize the key takeaway. Content marketing books on Amazon discuss optimization strategies.