Meta description

The meta description is not a ranking factor in Google. Writing a good one will not move a page up the results. What it can do is persuade more of the people who see the result to click it, which is why it is still worth writing for important pages.

It is also only a suggestion. Google often writes its own snippet from the page's text when it thinks a different passage better matches the specific search, so the same page can show different snippets for different queries.

How it works

The tag sits in the head of the page's HTML, out of sight of visitors. When the page appears in results, the search engine chooses between your description and extracts from the page, picking whichever better answers the query. Snippets are truncated by display width, so the first part of a description should carry the point.

Social networks and messaging apps sometimes fall back on the meta description when a link is shared, unless the page provides separate social preview tags. Search engines decide on the snippet for each search individually, which means a page can show your written description for one query and a sentence from the body for another. Content management systems and SEO plugins usually provide a field for the description on each page; if it is left empty, the system may leave the tag out or fill it with the opening words of the page, which rarely make a good summary. Very short or generic descriptions are often ignored.

Descriptions work best when they answer what a searcher wants to know before clicking: what the page offers, for whom and what makes it different, such as price range, location or availability. Because Google often bolds words from the search in the snippet, using the natural wording of the main query helps the result stand out. Promises in the description should be ones the page keeps, or visitors leave and the snippet loses trust.

Example

A travel agency's tour pages have no meta descriptions, so Google shows random sentences from the itinerary. It writes a description for each top page summarising the destination, length of trip and what is included, in plain words. The results now read like an offer, and the click rate on those pages improves in Search Console.

To check the effect, the owner uses Search Console's Performance report for each changed page, comparing click-through rate over equal periods before and after the change while position stays roughly the same. If the rate did not improve, the description may not be shown. Searching the main phrase in Google reveals whether the written description appears or Google has substituted its own text.

Why it matters for your business

A clear description can raise the click-through rate of pages that already rank, which brings more visitors without changing your position. For a small site, writing them for the main service pages takes an afternoon. It is less worthwhile for hundreds of minor pages, where Google's automatic snippets are often good enough. Write them for the pages that matter most and let the rest fall back to automatic snippets.

Common mistakes

• Expecting a meta description to improve rankings directly.
• Copying the same description onto every page, which makes them all look identical in results.
• Stuffing it with keywords instead of writing a clear summary a person would want to click.
• Writing descriptions that do not match the page, which Google will usually ignore anyway.

Questions people ask

Do meta descriptions affect SEO rankings?

Not directly. Google has said meta descriptions are not used as a ranking signal. They can affect how many people click your result, which brings more traffic from the positions you already hold. That makes them worth writing for important pages, but not a way to rank higher on their own.

How long should a meta description be?

There is no fixed limit, because snippets are cut by display width and vary by device. Many SEOs aim for roughly 150 to 160 characters. More useful than a count: make the first sentence a complete summary, so the snippet still works if it is shortened.

Why is Google not showing my meta description?

Google shows the text it thinks best matches each search. If your description is missing, generic, duplicated or does not address the query, Google pulls a passage from the page instead. Writing a specific, accurate description for each page increases the chance it is used, but there is no guarantee.