How to use this SERP preview tool

Enter your page URL, title tag, and meta description in the fields above. The preview updates instantly as you type. Use the pixel counter to ensure your title stays under 580px (desktop) and your description under 920px — otherwise Google will truncate them with "..."

Use the Fetch from URL button to pull the current title and description from any live page. The keyword field lets you see how Google bolds matching search terms in your snippet.

For even more powerful on-page analysis — including indexation checks, heading structure, schema validation, and AI crawler checks — try the full Lumina Chrome Extension (free).

Optimal title tag and meta description length

Google uses pixel width, not character count, to determine truncation. Different characters have different widths — "W" takes more space than "i". As a guideline: keep titles under 60 characters (~580px) and descriptions under 155 characters (~920px). Our tool shows both counts in real-time.

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Frequently asked questions

What is a SERP preview tool?+

A SERP preview tool simulates how your page will appear in Google's search results. It shows your title tag, URL, and meta description as they would look to users, helping you optimize for maximum click-through rate before publishing.

Why does pixel width matter more than character count?+

Google truncates titles and descriptions based on pixel width, not character count. A title with many wide characters (like "W" or "M") will be truncated sooner than one with narrow characters (like "i" or "l"). Our tool measures the actual pixel width to give you an accurate preview.

Does Google always use my title and description?+

Not always. Google may rewrite your title tag or generate a different description from your page content if it believes its version better matches the search query. Well-optimized, relevant meta tags are more likely to be used as-is.

Is this tool free to use?+

Yes, completely free with no signup required. For more comprehensive SEO analysis, install the free Lumina Chrome Extension which includes this SERP preview plus 40+ additional SEO checks.

Want this built into every page you visit?

The Lumina extension gives you this SERP preview plus 40+ SEO checks on every page — automatically, for free.

Add Lumina to Chrome — Free