Meta Descriptions

A meta description is the short HTML attribute that summarises a page for search engines and link previews. Google has confirmed several times that meta descriptions are not a direct ranking factor, yet they still matter because of their effect on click-through rate. That effect is worth keeping in proportion: the click signals Google aggregates across searchers are not a dial you turn by rewriting a description, so treat CTR gains as traffic won directly rather than as a route into rankings.

<meta name="description" content="A short, accurate summary of the page in 140 to 160 characters.">

Why do meta descriptions matter?

The description appears beneath the title tag in search results. It is the first piece of substantive copy a searcher reads after the title, and often the deciding factor in whether they click. A page can rank well and still lose traffic to a better-described competitor.

Beyond search results, the meta description is used by social platforms, messaging apps, and link preview generators. It is the sentence about your page that travels with the URL.

How long should a meta description be?

Google sets no limit: its snippet documentation says “there’s no limit on how long a meta description can be, but the snippet is truncated in Google Search results as needed, typically to fit the device width”.¹ In practice that truncation lands at around 155 to 160 characters on desktop and 120 to 130 on mobile. The exact cut-off varies by query and device, but writing for 150 characters is a safe target for most contexts.

Very short descriptions, a stray fragment or a bare label, give Google little to display and are more likely to be replaced with text pulled from the page. Descriptions longer than 160 characters get truncated mid-sentence.

How do you write a meta description that earns clicks?

Lead with the value proposition. What will the reader learn or be able to do after visiting the page? The first 100 characters should make the answer clear.

Match the search intent. Read your target query as a searcher would. The description should directly address the question or need behind that query, not simply describe the page in generic terms.

Include the primary keyword once. Google bolds query-matching terms in the description, which improves visibility on the SERP. One natural inclusion is enough; repeated keywords look spammy and reduce CTR.

Use active voice. “Learn how to fix slow LCP scores” reads stronger than “A guide to LCP issues and how they can be fixed.”

Include a clear differentiator. When competing against similar pages, the description that explicitly states what makes your page distinct wins. “From an independent SEO specialist with 7+ years of experience” is more compelling than no attribution at all.

End with a soft action where appropriate. “Read the full guide” or “See the data” can lift CTR for content where the description is selling the click. Use sparingly; it doesn’t fit every page type.

When does Google rewrite your meta description?

Google rewrites meta descriptions in roughly 70% of cases.² Google’s own account of the mechanism runs the other way round: snippets are “primarily created from the page content itself” and are “designed to emphasize and preview the page content that best relates to a user’s specific search”, with the meta description used where it “might give users a more accurate description of the page than content taken directly from the page”.¹ So a snippet varies by query, and the description is the exception Google reaches for rather than the default it departs from. Common triggers:

• The description doesn’t match the page content
• The description is too short or generic
• The description is missing
• A passage on the page maps more cleanly to the user’s query than the description does

You can’t prevent Google from rewriting, but you can reduce its frequency by writing accurate, specific descriptions that are obviously useful for the queries the page targets.

Meta descriptions and AI search

AI Overviews and answer engines do not display meta descriptions in their generated answers; they synthesise responses and cite sources. The description is not wholly irrelevant, though. Resoneo’s July 2026 capture found ChatGPT’s own index ignores it and builds its stored snippet from the start of the page body, but the scraped-Google pipeline ChatGPT also uses picks the meta description up roughly one result in three.³ What reaches Google’s AI Overviews and AI Mode is set by robots directives instead: nosnippet and max-snippet: 0 withhold a page’s text from both, as covered under the meta robots tag.

It remains relevant to traditional organic CTR, which still represents the majority of traffic for most sites. Meta descriptions are a CRO discipline more than an SEO one in the AI search era.

Common meta description mistakes

Mistake	Effect
Identical descriptions across multiple pages	CTR loss; signals lazy templating
Stuffing keywords	Looks spammy; reduces CTR
Letting CMS auto-generate from first 160 characters	Often produces awkward, mid-sentence cuts
Writing for the algorithm rather than the reader	Underperforms human-written copy
Leaving the description blank	Google generates one, often poorly

Frequently asked questions

Should every page have a unique meta description?

For pages you want to rank, yes. For low-priority pages (paginated archives, faceted filters), templated descriptions are acceptable. Avoid duplicates on pages competing for similar queries.

Do meta descriptions influence rankings at all?

Not directly, and not as a lever. Google says it does not use raw click-through rate as a ranking factor, and the antitrust disclosures describe clicks entering ranking as aggregated, quality-classified data across all searchers rather than as a per-page click rate, which a rewritten description on one page does not move. The detail is in does Google use clicks to rank.

What about Open Graph descriptions?

Open Graph (og:description) controls how the page appears when shared on social platforms. It can be the same as the meta description, or different if your social-shared copy needs a different tone. Both should exist on every important page.

Footnotes

1. Control your snippets in search results — Google Search Central ↩ ↩²

2. Google Rewrites Meta Descriptions Over 70% of the Time — Search Engine Journal ↩

3. What ChatGPT pulls, what it shows, what it cites — Resoneo, July 2026 capture of 1,249 ChatGPT answers; Resoneo sells SEO consulting and the browser extension that captured the data. ↩