What Is a Meta Description in SEO? Meaning and Examples

Last updated: November 2026.

A meta description is a short HTML summary of a page, written in the head of the code, that Google may show as the snippet under your title. It influences whether somebody clicks, not where you rank. DigiFix writes one for every page because the click is the only part of a result you can still influence.

<head>
  <meta name="description" content="Emergency plumber in Clayton, open 24/7. Fixed fee, no surcharge.">
</head>

Where does a meta description appear?

Two places, and they behave differently. In a Google result it is the grey text under the blue title link, and Google may replace it with a sentence lifted from your page. On a social share it is usually the og:description value, and that one is not rewritten at all, which makes it the more predictable of the two.

Google took 87.61 per cent of Australian search traffic in October 2026 (StatCounter, October 2026), so the search result is the surface that matters most locally. If the tag is missing or unhelpful, Google does not leave a blank. It pulls a sentence from the page, and the sentence it picks is often the least persuasive one available.

Is a meta description a ranking factor?

No. Google’s snippet documentation describes the tag as a way to influence the snippet a searcher sees, and nothing more. Ranking is decided elsewhere, by systems Google documents separately, and none of them require a meta description to be present or well written.

That answer gets misquoted in both directions. It does not mean the tag is pointless, and it does not mean a keyword stuffed description will lift a page. What it means is that the return on writing one shows up in click through rate and in how the result reads, which is a different measurement to position.

One related myth worth retiring: click through rate is not a ranking lever you can pull by writing a punchier tag. If a page ranks and nobody clicks, the honest reading is that the snippet is not answering the query, not that Google is quietly demoting you for it.

Why do meta descriptions still matter?

Because they are the last piece of copy a searcher reads before choosing between you and four competitors. A ranking gets you into the shortlist. The snippet decides whether you get the click, and on a commercial query that difference is revenue.

There is a second reason that did not exist a few years ago. To be shown as a supporting link in AI Overviews or AI Mode, a page has to be indexed and eligible to appear with a snippet (Google Search Central, AI features and your website). A page that cannot produce a usable snippet is competing for a citation it cannot win, which is the argument in our answer engine optimisation guide.

The scale of the rewrite problem is worth knowing. Ahrefs compared hardcoded descriptions against the actual desktop snippets for 20,000 keywords and found Google rewrote 62.78 per cent of them, so the written description was shown only about 37 per cent of the time (Ahrefs, How Often Does Google Rewrite Meta Descriptions). That study was published in October 2020, so treat the exact figure as a snapshot rather than a current constant, but the pattern has not reversed: a rewrite is normal, and the job is to write a tag that deserves to survive.

How long should a meta description be?

Google states there is no limit on how long a meta description can be, and that the snippet is shortened as needed, typically to fit the device width (Google Search Central, Control your snippets). So any article quoting a hard character limit as a Google rule is quoting a convention, not documentation.

The convention is still useful as a target. Write 150 to 160 characters, and front load the point into the first 120 so a narrow phone screen does not cut it off. That gives you one rule instead of four, and it matches how the snippet actually behaves.

Widths vary, so treat the number as a guide for where to put the important words rather than a wall. If the sentence still makes sense when it is cut at 120 characters, the length is right regardless of the exact count.

One length rule, replacing the four conflicting ones this page used to carry. The 150 to 160 target is a convention; the shortening behaviour is Google’s documented behaviour (Google Search Central, Control your snippets).

Which tags control snippet length?

Three attributes, all documented by Google (Google Search Central, Control your snippets). Use them deliberately rather than pasting them into a template.

• nosnippet stops Google showing any snippet for the page. Reserve it for pages where a preview would give away paid content.
• max-snippet:[number] sets the maximum length in characters you will accept. A value of -1 means no limit, which is the sensible default for a marketing site.
• data-nosnippet hides one element on the page from snippets while leaving the rest eligible. Useful for a disclaimer block you do not want quoted.

A malformed robots tag does real damage here. This page used to serve max-snippet:max-snippet:1, a doubled attribute that crawlers cannot read as intended. Always set these values through the CMS field rather than hand editing the tag, then check the rendered head on the live URL, not the settings screen.

What makes a good meta description?

Five traits, and the first one carries most of the weight. The description has to answer the query in the searcher’s own words, because that is the moment they decide whether the result is about the thing they typed.

1. It answers the query. If the page is about emergency plumbing in Clayton, the word Clayton belongs in the description, not only in the title.
2. It adds a reason to click. A price signal, a timeframe, opening hours or a guarantee. “Learn more about our services” is not a reason.
3. It is specific. Numbers, suburbs and named services beat adjectives every time, and they are also the parts that survive being cut short.
4. It matches the page. Google compares the tag with the content and drops it when they disagree, so an overstated description costs you the snippet entirely.
5. It is unique. Google’s guidance is explicit that identical descriptions across a site are not helpful, because a searcher comparing two of your pages learns nothing.

For the step by step method of drafting one, including the formula and the word order that survives a narrow screen, see our guide to writing a good meta description. If your tags are fine but the clicks are not, the work moves to writing meta descriptions that increase CTR and improving click through rate, which cover testing titles and descriptions together rather than in isolation.

What do good meta descriptions look like?

Four Australian examples, each written for a different page type. The pattern is the same in all of them: the query is answered first, then one concrete reason to click.

Weak and better descriptions by page type, using Australian businesses. Every better example fits inside 160 characters.

Why does Google rewrite meta descriptions?

Because it is trying to match the searcher, not the page. Google builds snippets from page content and designs them to preview the part of the page that best relates to a specific search, which means the same page can show a different snippet for a different query (Google Search Central, Control your snippets).

Three situations make a rewrite more likely: a description that repeats the title, a description that does not mention the thing being searched, and a description that promises something the page does not deliver. A fourth is simply that someone else’s sentence on your page is a better answer than your tag, in which case Google was right.

The practical response is not to fight it. Write the tag to earn the default snippet for your main query, then make sure the first paragraph of the page answers the same query in the same words. Then the rewrite is a variation of your message rather than a replacement for it.

If you want to compare notes on how the title is handled, the guide to title tags covers the element above the snippet, the meta tags examples page collects the full set of tags with real markup, and the guide to search queries covers the other side of the result, the words the searcher actually typed.

How would you fix a site with weak snippets?

Here is the shape of job we see most often, on a Melbourne clinic with 40 pages, decent rankings and a booking rate that does not match its traffic.

The situation. The service pages rank in the top five for their main terms, but the descriptions were written once and never updated. Half of them repeat the H1, and the two highest impression pages describe the clinic rather than the treatment.

1. Days 1 and 2. Export the last 90 days from Search Console, sort by impressions, and flag every page where the click through rate is well below what its position would normally earn. That list is the work queue, not the whole site.
2. Days 3 to 5. Rewrite the flagged descriptions to 150 to 160 characters, answering the query in the first 120. Where two pages compete for the same query, merge or differentiate them rather than writing two similar tags.
3. Week 2. Update the first paragraph of each of those pages so it states the same promise as the tag, which reduces the chance of Google replacing the description with a stray line.
4. Weeks 3 and 4. Set the robots values properly through the CMS, then check each page in the live head. This is where malformed max-snippet values get caught.
5. Month 2. Re-read the same report. The measure is click through rate at a stable position, not position itself, which is what makes this a fair test.

What waiting costs. Every week the weak tags stay live, the same number of people see the page and a smaller share of them book. Unlike a ranking problem, this one costs you money at a fixed position, which makes it the cheapest fix on most sites.

This work sits inside our SEO services, and the on page SEO checklist puts it in order alongside the other five elements. Results on similar jobs are on the DigiFix portfolio page, the about DigiFix page covers how the team works, and the DigiFix blog holds the rest of the SEO basics series.

What do people ask about meta descriptions?

Do meta descriptions help SEO rankings?

Not directly. Google describes the tag as a way to influence the snippet shown in search results, and the ranking systems are documented separately. Where it helps is the click, which affects traffic at a fixed position rather than the position itself. On a commercial query that difference shows up in enquiries, so the tag earns its place on the business case rather than the ranking case.

Why did Google change my meta description?

Google builds snippets from page content and chooses the part that best matches the specific search, so the same page can show different text for different queries. A description that repeats the title, ignores the searched phrase or promises more than the page delivers is more likely to be replaced. The fix is to write a tag that deserves to survive for your main query, not to keep rewriting it.

Should I write a different meta description for every page?

Yes. Google states plainly that identical or similar descriptions across a site are not helpful, because a searcher comparing two of your pages learns nothing about the difference. If you cannot write one for every page immediately, prioritise the home page, the money pages and anything already earning impressions. The rest can follow, but a shared template description is worse than none.

Does a meta description affect click through rate?

It is one of the few things you control that a searcher reads before deciding, so it can. The honest caveat is that click through rate is also shaped by position, the query, the device and what competitors wrote that day. The fair test is to compare click through rate for the same page at a similar average position before and after the change, not across the whole site.

What happens if I leave the meta description blank?

Google writes one for you by pulling a sentence from the page. Sometimes that works, and sometimes it quotes a cookie notice or a shipping line. In the Ahrefs study, 25.02 per cent of top ranking pages had no description at all, which shows you can rank without one. It also shows that a deliberately written tag puts you ahead of a quarter of the pages you are competing against.

Is the meta description used for social sharing?

Only as a fallback. Social platforms prefer the Open Graph description, then the Twitter description, and drop to the meta description if neither is set. That makes the social preview the more predictable surface, because those fields are not rewritten, but it also means a stale Open Graph value can outlive a corrected meta description. Set both and check both in the live head.