A meta description is an HTML attribute that provides a brief summary of a webpage’s content, typically appearing underneath the clickable blue title tag on a Search Engine Results Page (SERP). Think of it as a mini-advertisement or movie trailer for your webpage designed to convince searchers to click on your link instead of a competitor’s.
While Google has confirmed that meta descriptions are not a direct ranking factor, they heavily influence your Click-Through Rate (CTR). A higher CTR brings more organic traffic and signals user engagement to search engines. Core Anatomy of a Great Meta Description How to create a good meta description – Yoast