What is a meta description?
A short summary of a page provided in HTML metadata, often used by search engines and link previews as the descriptive text below the title.
A meta description lives in the page head: <meta name="description" content="...">. Google does not use it as a ranking signal directly, but it frequently uses the description as the snippet below the title on the SERP. A compelling description lifts click-through; a missing or boilerplate one means Google synthesizes a snippet from the page body, which is sometimes worse.
Best practices: 150-160 characters (longer ones get truncated), include the primary keyword (Google bolds it on the SERP), match the search intent of the query, and end with an implicit call to action. Different pages should have different descriptions; duplicate descriptions across templates are a common technical-SEO smell.
For brand monitoring, meta descriptions are part of the brand snippet that shows up everywhere a link is shared: Slack, Twitter, LinkedIn, search results. Inconsistent or stale descriptions degrade the brand experience long before they affect rankings.
In the wild
<meta name="description" content="Brand intelligence APIs for logos, colors, fonts, and company data. Free tier, instant access.">on a homepage- An audit flagging 200 pages that all share the same default meta description from a CMS template
- A description written specifically to match a long-tail query, lifting CTR from 2% to 5% without the rank changing