A meta description is an HTML attribute that summarizes what a web page is about. Search engines like Google often show the meta description in the search results, which can significantly impact how many times users click on the link.

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This description can be any length, but search engines usually cut off snippets that are longer than 160 characters. Most of the time, it's best to keep meta descriptions under 160 characters so that the complete description appears in search results.

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Even though the meta description isn't a direct ranking factor in Google's search algorithm, it can affect click-through rate, user engagement, and perceived relevance. All of these things can indirectly affect your search ranking. To make your web pages more visible and exciting on search engines, it's a good idea to write accurate and interesting meta descriptions for them.