A meta description is the grey snippet under your title in search results. It does not directly affect ranking, but it decides whether people click. Two results at the same position can differ by 30% or more in click-through rate based on the description alone.
The right length
Google shows roughly 150–160 characters on desktop and a little less on mobile. Anything longer is truncated with an ellipsis. Aim for 150–160 characters and put the most important words first, because the end is what gets cut.
- 150–160 characters: safe
- Under 120: you are leaving room unused
- Over 165: risk of truncation
Use the meta description generator to fit any paragraph into range and preview it.
A structure that works
Most strong descriptions follow a simple pattern:
- Primary keyword early, phrased naturally
- The benefit or specific value you offer
- A call to action — "Learn how", "Compare", "Get started"
- Differentiation — price, speed, freshness, or proof
For example: "Compare 12 free SEO tools for schema, robots.txt and sitemaps. No signup, runs in your browser — get a copy-ready result in seconds."
Mistakes to avoid
- Duplicating the title tag — the description should extend it, not repeat it
- Auto-generating from the first paragraph of the page
- Keyword stuffing; it reads badly and Google ignores it
- Writing one description and reusing it across many pages
When Google rewrites it
Google rewrites descriptions when it thinks it can better match the query, especially for long-tail searches. You cannot stop this, but a clear, specific, well-sized description is far more likely to be kept. If a page has no meta description at all, Google will pull a passage from the page, which is usually worse.
Do it at scale
Writing descriptions by hand does not scale past a few dozen pages. If you publish programmatically, generate them from a template and data, then review the output. Pro's programmatic SEO tool and the API do this in bulk.
Start with the free meta description generator — paste your text and get a fitted, copy-ready tag.