Meta description: definition, ideal length and writing
Updated on February 22, 2026
Quick definition
The meta description is an HTML tag in the `<head>` of a web page that provides a concise summary of the content, displayed under the blue title in Google's SERP. The meta description is not a direct ranking factor, but it strongly influences CTR from search results — it is the page's commercial 'pitch'. The ideal length is 150 to 160 characters.
How it works
The meta description is inserted in the `<head>` with `<meta name='description' content='Your summary here'>`. It plays a dual role: informing the search engine about the page topic, and convincing the user to click on your result rather than a competitor's.
The ideal length:
- Desktop: 150 to 160 characters (approximately 920 pixels)
- Mobile: approximately 120 characters
- Beyond that, Google truncates with ellipses
Google reserves the right to rewrite the meta description if it judges another portion of the page text better matches the search intent. This happens in more than 60% of cases according to some studies.
An effective example for a SaaS pricing page: "Discover Sublim's pricing: GDPR analytics without cookies from €0/month. No credit card required. 14-day free trial." — it includes the keyword, a clear benefit, easy-access proof and a call to action.
Why it matters
The meta description is often the first textual impression a user has of your site before visiting it. A well-written meta description can increase CTR by 5 to 30% according to documented SEO A/B tests.
A higher CTR means more organic traffic without ranking improvement, and may also send a positive signal to Google, which observes user behaviour in the SERP.
How to improve or use it
- 1Include the main keyword (Google bolds it in the SERPs when it matches the query).
- 2Formulate a clear value argument in 1–2 sentences.
- 3Include a call to action (Discover, Download, Compare).
- 4Stay between 150 and 160 characters to avoid truncation.
- 5Avoid quotes that may truncate the display.
- 6Use Google Search Console to identify pages with low CTR despite good ranking.
With Sublim
Sublim measures the CTR and engagement of visitors arriving from search engines, letting you identify which meta descriptions convert well (visitors who stay and convert) and which attract unqualified traffic (high bounce rate). This behavioural analysis, cookieless and GDPR-compliant, perfectly complements Google Search Console data.
Frequently asked questions
Does the meta description influence Google ranking?
No, Google has officially confirmed that the meta description is not a direct ranking factor. However, it influences CTR from the SERPs, and a high CTR can indirectly improve rankings since Google interprets a good CTR as a relevance signal. Polishing your meta descriptions therefore remains an SEO priority.
Does Google often rewrite meta descriptions?
Yes, Google rewrites meta descriptions in over 60% of cases according to some studies. It mainly does so when it judges that the meta description doesn't match the query's search intent well, or when the page content offers a more relevant snippet. Writing precise meta descriptions in line with the content reduces rewrite frequency.
Should every page have a unique meta description?
Yes, ideally every page should have a unique meta description tailored to its content. Duplicate meta descriptions across multiple pages are not an SEO penalty, but they miss an opportunity to optimise CTR for each page. On large sites (e-commerce), meta description templates with dynamic variables (product name, category) are good practice.
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