Key points
The meta description is a short summary of the page, placed in a <meta name="description"> tag. Google can show it under the title in search results, but it builds the snippet mostly from the page content. It has no influence on rankings: it serves the click-through rate, when Google uses it.
- Google rewrote the description in 62.78% of the cases studied by Ahrefs (192,656 pages, October 2020).
- No official limit: aim for 140 to 160 characters, with the key message in the first 120.
- Prioritise pages that get traffic and pages whose automatic snippet is poor.
What is a meta description?
The meta description is an HTML metadata element that summarises the content of a page in one or two sentences. It sits in the <head> section, with the name="description" attribute described in the MDN documentation.
<head>
<title>Meta description: role, length and examples | Elev8 Lab</title>
<meta name="description" content="What Google does with the meta description, the length to aim for and a method to write it.">
</head>Visitors do not see it on the page. When Google keeps it, it appears in the grey snippet under the result title. Social networks tend to use the og:description tag when it exists. On WordPress, a plugin such as Yoast SEO provides a dedicated field for each page, with no code to touch.
Google lists it among the meta tags it supports. The meta keywords tag, on the other hand, is no longer used by Google Search, as its starter guide points out.
Does the meta description affect SEO?
Not rankings. Google does not list it among its ranking signals. Its documentation presents it as a help for displaying the snippet. Its possible effect is on the click-through rate. A precise summary makes people want to choose your result over another.
It still has to be displayed. According to the Control your snippets documentation (April 20, 2026), snippets are created mainly from the page content. Google uses the tag when it describes the page more accurately than the text it could extract.
62.78%
Ahrefs studied 192,656 pages ranking for 20,000 keywords. Google showed a snippet different from the written description in 62.78% of cases. The rate rises to 65.62% for long-tail queries.
Source: Michal Pecánek, Ahrefs study on meta descriptions, October 9, 2020. A study by a tool vendor, with a published method, measured on desktop.
So the snippet depends on the query. For a precise search, Google often prefers the passage of the page that answers it. For a query close to the main topic, your description has a better chance of appearing.
Warning
The Ahrefs study dates from 2020. No more recent public measurement of the same scale had been found as of September 24, 2026: the current rate may differ.
How long should a meta description be?
Google sets no limit: the tag can be any length. The snippet, however, is truncated “as needed, typically to fit the device width”.
The length to aim for is therefore a writing convention. At Elev8 Lab, we use:
| Benchmark | Value | Why |
|---|---|---|
| Target range | 140 to 160 characters | Enough for a full sentence and a benefit |
| Maximum | 165 characters | Beyond that, the risk of truncation increases |
| Useful zone | The first 120 characters | The snippet is cut according to screen width, which is narrower on mobile |
| Practical minimum | About 70 characters | Below that, the summary says almost nothing |
The Ahrefs study found almost no difference in rewriting by length: 61.46% for descriptions that were too long, 63.69% for the others. Length is not what decides whether it is displayed: relevance to the query matters more.
How do you write a good meta description?
Google’s SEO Starter Guide sums up what is expected. A good description is short, unique to the page and covers the most relevant points. In practice:
- Answer the query: say what the page delivers, not what it “presents”. A factual summary convinces better than a vague promise.
- Include the keyword and a variant: Google can bold the terms that match the search. One natural occurrence is enough.
- Give something concrete: a figure, a format (guide, template, comparison), a lead time, a price. Google recommends bringing together useful information that is scattered across the page.
- One description per page: identical descriptions on several pages help neither Google nor the reader tell them apart.
- Follow the title: the two are read together. The meta description extends the title, it does not repeat it.
- Test truncation: cut at 120 characters and check that the meaning still holds.
Two fictional rewriting examples:
| Page | Before | After |
|---|---|---|
| Blog post | Discover our article on the description tag and all our SEO tips for your website. | Meta description: what Google does with it, the length to aim for and a 6-step method to write it, with examples. |
| Product page | Buy the Nord jacket in our online store. Fast delivery. | Nord 3L waterproof jacket, 420 g, taped seams. Delivered in 48 h, free returns within 30 days. |
It works in tandem with the title tag. The title names the page, the description says what the reader will find there. Google even uses the title as the first source for the displayed title, according to its documentation on title links.
Should you write a meta description for every page?
Ideally yes; in practice you have to prioritise. On a site with several thousand pages, writing every description by hand is not realistic. Two levers help focus the effort:
- Write by hand the descriptions of the pages that get the most impressions: home page, service pages, main categories, in-depth articles.
- Generate the others from a template. Google says programmatic generation is appropriate and encouraged for data-rich sites, provided each description is specific to its page. Example of a template for a product page: name, key attribute, price, delivery time.
A page without a description is not penalised: Google then builds the snippet from the content. Descriptions duplicated across many pages are more of a problem. They often point to a badly configured template or to duplicate content.
To limit or block the snippet, the documentation on the robots meta tag describes three options. nosnippet removes the snippet and max-snippet:[number] sets its maximum length in characters. The data-nosnippet attribute excludes a specific part of the page.
How do you check and fix a site’s meta descriptions?
- Take inventory: a crawl with Screaming Frog (Meta Description tab) lists missing, duplicate, too long or too short descriptions.
- Prioritise: in Google Search Console, Performance report, spot the pages with high impressions and a low click-through rate for their position.
- Compare with the actual snippet: type the main queries for these pages into Google and note the snippet shown. If it never uses your description, it often means the description does not answer the query.
- Rewrite and date: record the date of each change so you can compare the click-through rate over the following weeks, at a comparable position.
This summary is one of several page settings. The overview is in on-page SEO and the SEO guide.
Frequently asked questions
How do you write a good meta description?
Summarise what the page delivers in 140 to 160 characters. Include the main keyword, something concrete (figure, format, lead time) and wording specific to the page. Avoid generic descriptions or ones copied from page to page.
Can you give an example of a meta description?
For a product page: “Nord 3L waterproof jacket, 420 g, taped seams. Delivered in 48 h, free returns within 30 days.” It names the product, gives its key attributes and answers purchase questions. Fictional example.
What is the maximum length of a meta description?
Google sets no maximum: it truncates the snippet according to screen width. The convention used here is 140 to 160 characters, 165 at most, with the key message in the first 120.
What is the difference between meta title and meta description?
The “meta title” refers to the title tag: it provides the clickable title of the result. The description sometimes provides the text shown below it. The title is used in the vast majority of cases, the description much less often.
Is the meta description used in AI Overviews?
Google documents no specific use of this tag in AI Overviews, which rely on page content. How these answers work is explained in AI Overviews.
Sources
- Google Search Central, Control your snippets in search results, updated on April 20, 2026. Accessed on September 24, 2026.
- Michal Pecánek, Ahrefs, How Often Does Google Rewrite Meta Descriptions? (New Data Study), published on October 9, 2020. Accessed on September 24, 2026.
- Google Search Central, Search Engine Optimization (SEO) Starter Guide, updated on December 10, 2025. Accessed on September 24, 2026.
- Google Search Central, Meta tags and attributes that Google supports. Accessed on September 24, 2026.
- Google Search Central, Robots meta tag, data-nosnippet, and X-Robots-Tag specifications. Accessed on September 24, 2026.
- Google Search Central, Influencing title links in Google Search, updated on December 10, 2025. Accessed on September 24, 2026.
- MDN Web Docs, <meta name> (in French). Accessed on September 24, 2026.
Digital marketing, SEO and GEO consultant
Article checked and updated by the author. Sources consulted on the date shown.
Cite this article
, . (2026, September 26). Meta description: what is it for?. Elev8 Lab. https://elev8-lab.fr/en/seo/meta-description/