Table of Contents
Paste a meta description and the keyword you are targeting. The tool returns the character count, whether the keyword appears, whether the text contains a call to action, and specific suggestions. It is for checking a snippet before it ships, not for auditing a live site.
What a description is for
The description is advertising copy for a search result. It does not affect where the page ranks. Its entire job is to convince someone already looking at the result that this page answers their question, which makes it one of the few pieces of on-page text with a directly measurable payoff in click-through rate.
Worked example
A weak description for a severance pay calculator:
Welcome to our website. We offer a range of useful calculators and
tools for all your needs. Try our free calculator today. It says nothing a searcher wants. Rewritten:
Work out Korean statutory severance from your joining and leaving
dates and your last three months' pay. Includes the bonus and annual
leave shares most calculators leave out. That is 163 characters, names the inputs, and states a specific reason to prefer it. A searcher can tell from the snippet whether it fits their situation.
On length
Around 150 to 160 characters is the practical working range for desktop. Google truncates on pixel width, and the cut-off has moved several times, so treat the number as a guide. Front-load the useful part: if the snippet is trimmed, you want the loss to fall on the least important clause.
Honest limits
Google rewrites descriptions more often than it keeps them, generating a snippet from page content when that better matches the query. This is not a fault to fix - a query-specific snippet is frequently better than a fixed one. Write the description for the query you most want to win, and accept that other queries will produce different text.
Related tools
Check the paired headline with the title tag optimizer, see both together in the SERP simulator, output the full tag block with the meta tag generator, and confirm what is live with the meta tags analyzer. More in SEO tools.