What is a meta description?
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A meta description is a short piece of HTML text, typically 150 to 160 characters long, that summarises the content of a webpage. It appears beneath the page title in search engine results. Google is not obliged to display it, but a well-written meta description directly influences whether someone clicks your result or a competitor's.
Key takeaways
Meta descriptions do not directly affect your search ranking, but they influence click-through rate, which matters for traffic.
Google's recommended length is 150 to 160 characters. Descriptions longer than this get truncated in results, cutting off your message.
Google rewrites meta descriptions in roughly 60% of cases, according to studies by search industry practitioners, using content from your page instead.
Every page on your site should have a unique meta description. Duplicate descriptions across multiple pages waste the opportunity to differentiate each result.
A stronger click-through rate on the same ranking position delivers more traffic without spending more on ads.
What exactly is a meta description?
A meta description is an HTML meta tag placed in the <head> section of a webpage. It tells search engines and browsers what the page is about in a single summary sentence or two. In the search results page, it appears as the grey or black snippet of text beneath the blue clickable title and the URL.
Here is what the HTML looks like:
<meta name="description" content="Your summary here.">
Most content management systems, including WordPress with Yoast or Rank Math, let you write this without touching code. If you leave the field blank, Google will pull a passage from your page instead, and that passage may not represent your content well.
How does a meta description influence clicks?
A meta description acts as a micro-advertisement for your page. When someone scans a search results page, the title tells them the subject, and the description tells them whether the page is worth their time. A description that matches what the searcher actually wants will earn the click. One that sounds vague or generic will lose it to the result below.
Google sometimes bolds words in the description that match the search query, which draws the reader's eye. Writing a description that includes the language your audience uses gives that bolding a better chance of appearing and makes the result feel directly relevant.
How long should a meta description be?
The widely accepted guidance is 150 to 160 characters for desktop results. Mobile results can truncate even earlier, sometimes around 120 characters. Write the most important information first so it survives the cut.
A practical approach:
Draft your description in full, making your core point in the first sentence.
Count the characters. Aim for 150 to 155 to leave a small margin.
Read it aloud. If it sounds like marketing copy rather than plain English, simplify it.
Check it in a snippet preview tool before publishing. Several free tools show exactly how your result will appear on desktop and mobile.
Descriptions that are too short, say under 70 characters, leave empty space and signal a missed opportunity. Descriptions over 160 characters get cut mid-sentence, which looks unprofessional and may lose the call to action.
Meta description vs title tag: what is the difference?
Element | Where it appears | Character limit | Affects ranking directly? |
Title tag | Bold blue link in results | 50 to 60 characters | Yes |
Meta description | Grey text beneath title | 150 to 160 characters | No |
URL slug | Green address beneath title | Varies | Minor |
The title tag carries ranking weight because it signals relevance to the search algorithm. The meta description carries persuasion weight because it signals relevance to the human reader. Both matter. Improving a title tag may lift your ranking; improving a meta description may lift your click-through rate on the same ranking.
When should you prioritise writing meta descriptions?
Not every page carries equal commercial value, so it makes sense to triage. Prioritise in this order:
Your homepage. First impression for branded searches.
Service and product pages. Where purchase or enquiry decisions happen.
High-traffic blog or resource pages. Already getting impressions; better descriptions convert those impressions to clicks.
Pages you are actively trying to rank. New content benefits from a clear description from day one.
Pages with a high impression count but low click-through rate in Google Search Console. These are the clearest signal that the current description is underperforming.
What makes a meta description actually earn the click?
A good meta description does three things: it matches the searcher's intent, it contains the language the searcher used, and it gives a reason to click rather than a reason to read. Vague descriptions such as "We offer a range of digital marketing services" give the reader no reason to prefer you over the next result.
At Revolve, a digital marketing agency based in Banbury with a London presence, we treat meta descriptions as the smallest piece of copy with the highest commercial leverage. A 155-character sentence, written well, can shift traffic without changing a single ranking.
One practical test: read your description and ask, "Does this tell someone with my specific problem that this page has the answer?" If the honest answer is no, rewrite it.
Frequently Asked Questions
How long should a meta description be? The standard guidance is 150 to 160 characters for desktop search results. Mobile may truncate earlier, closer to 120 characters, so put the core message in the first sentence to ensure it always shows.
Does Google always use the meta description I write? No. Google frequently rewrites meta descriptions when it judges that a passage from the page body is a better match for the search query. Writing a clear, intent-matching description reduces how often this happens, but it is not a guarantee.
Can a meta description improve my search ranking? Not directly. Meta descriptions are not a confirmed ranking signal. However, a more compelling description improves click-through rate, and consistent engagement with your result is a behavioural signal that search engines observe over time.
Should every page on my website have a unique meta description? Yes. Duplicate descriptions across pages give search engines no way to differentiate your content and miss the chance to speak directly to the intent behind each specific search query.
How do meta descriptions relate to AEO? Meta descriptions are written for the traditional search results page. Answer engine optimisation, or AEO, targets AI-generated answers in tools like Google's AI Overviews and ChatGPT. The two disciplines complement each other: clear, well-structured pages perform better in both. Revolve's AEO agency work often starts with the same on-page clarity that good meta descriptions demand.
Written by the Revolve team — a UK digital marketing agency delivering SEO, AEO, paid advertising and content marketing for small and mid-sized businesses.
Last updated: 2 September 2026
