The SERP Preview tool shows exactly how your page title and meta description will appear in Google search results — including where they get cut off. See your result before Google does and optimise for maximum click-through rate.
Your title tag is the largest, most prominent element in your search result. It is the headline that must convince the searcher to click your result over the others on the page. Two goals: include your primary keyword (for ranking) and make it compelling (for clicks).
[Primary keyword] — [Benefit or differentiator] | [Brand]
Example: Emergency Plumber London — 24/7, No Call-Out Fee | FastFlow
Think of your meta description as a 155-character advertisement. It should describe what the user gets, address their intent, and include a call to action. Match the language of the search query where possible.
[What the page offers] + [Key benefit] + [Call to action]
Example: Emergency plumbers covering all London postcodes, available 24/7. Fixed price quotes before work starts. Call now for a same-hour response.
A preview shows you what your title could look like. It cannot show you whether Google will use it — and on a substantial share of results, Google does not. Since 2021 it has generated its own titles wherever it judges yours unsuitable, and understanding the triggers is worth more than any character-count rule.
Google is most likely to replace your title when it is:
That single fact is the most actionable thing on this page. If you want to control the title in the SERP, make the title tag and the H1 tell the same story. A title that fights its own page will be overruled by the page — and the thing that overrules it is the headline you wrote.
The 60-character rule is a proxy, and a leaky one. Google cuts on rendered width, so identical character counts truncate at different points depending on which characters you used.
Two rules follow, and they matter more than the count:
And a caveat about every preview tool, including this one: the truncation point on a real device depends on the screen, the zoom level, the font and the rendering. A preview is a good approximation and not a guarantee. Leaving a little headroom rather than filling the bar exactly is the sensible way to use it.
Two facts, taken together, should govern how much effort this receives.
First: the meta description is not a ranking factor, and has not been for many years. Writing keywords into it does nothing for position. It is an advertisement, not a signal.
Second: Google rewrites it most of the time, preferring a passage lifted from the page that matches the specific query someone typed. This is not a failure of your description; it is Google being more responsive to the individual searcher than a single static sentence could be.
So what is it actually for? Two things, both real:
These robots directives are the real levers, and almost nobody uses them.
| Directive | Effect |
|---|---|
max-snippet:-1 | No limit on snippet length — Google may show as much as it judges useful |
max-snippet:0 | No text snippet at all |
nosnippet | No snippet, and the page becomes ineligible for a featured snippet |
data-nosnippet | An HTML attribute excluding a specific element from any snippet |
data-nosnippet is the useful one and the least known. Wrap it around the elements that keep getting pulled into your snippets and should not be: a cookie notice, a promotional banner, a "5 minute read" byline, a breadcrumb trail. Google will then look elsewhere on the page for something to quote.
nosnippet. It is sometimes recommended as a way to stop AI systems quoting your content. It works — and it simultaneously removes your result's text snippet in ordinary search, and makes you ineligible for featured snippets. You are trading away the description that earns your clicks. It is a legitimate choice for some publishers and a self-inflicted wound for most businesses.A preview of a title and a description describes a search result from about 2015. What actually appears is assembled from several sources, most of which are not meta tags at all:
The point being: if your click-through rate is poor at a good position, the answer is at least as likely to be a missing favicon, an absent breadcrumb, or a competitor with star ratings as it is to be your description. Optimising two lines of text while a rival occupies three times the vertical space is losing a fight you have not noticed you are in.
The only trustworthy verdict on a title is what happens to the click-through rate after you change it. Search Console gives you this for nothing, and it is the single most under-used report in SEO.
Google truncates title tags at approximately 600 pixels width — not a fixed character count, because different characters have different widths. Narrow characters like i, l and 1 take less space than wide characters like W and M. As a practical guide, keep titles under 60 characters. The SERP Preview tool shows exactly where your title will be cut off based on pixel width, not character count.
No. Google rewrites meta descriptions approximately 70% of the time, replacing them with text extracted from the page that better matches the specific search query. This is normal and expected. Having a well-written meta description reduces the chance of a worse replacement and ensures a good description for queries Google does match. Always write a meta description — even though Google may not always use it.
Google truncates meta descriptions at approximately 160 characters for desktop and 120 characters for mobile. Write descriptions that are complete and compelling within 155 characters to ensure the key information appears before truncation. The SERP Preview tool shows desktop and mobile rendering separately so you can see exactly what gets cut on each device.
Because it judged yours unsuitable — most often because it is boilerplate across many pages, keyword-stuffed, far too long, or contradicted by the page's own content. The replacement is usually drawn from your H1, which gives you the lever: make the title tag and the H1 tell the same story and the rewrite largely stops. A rewrite is not a penalty and does not affect ranking.
Indirectly, and more reliably than by writing a meta description. Google prefers to lift a passage from the page that matches the query, so state the answer plainly in the opening paragraph, in the words people actually search — then the passage it chooses is one you wrote deliberately. You can also use the data-nosnippet attribute to exclude specific elements, such as a cookie notice or a promotional banner, from being pulled into the snippet at all.
Understand the cost first. It works, but it simultaneously removes the text snippet from your ordinary search result and makes the page ineligible for featured snippets — so you are trading away the description that earns your clicks. It is a defensible choice for some publishers and a self-inflicted wound for most businesses.
Possibly, but check what else is in the result first. A search result is assembled from more than two lines of text: the favicon beside your name on mobile, the breadcrumb path shown in place of the URL, sitelinks, and star ratings or prices drawn from structured data. If a competitor's result occupies three times the vertical space because it carries a rating and a breadcrumb and you carry neither, no amount of rewriting will close that gap.
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