Paste a meta description and get an estimated pixel width from a committed table of published font metrics, an approximate desktop preview, a target-phrase check, the manuscript analyzer's passive-voice detection, and whitespace and quote hygiene. Deterministic: the same description always measures the same.
The estimated pixel width, an approximate search preview and the content checks appear here as you type.
Your description never leaves this page. The checks run entirely in your browser: no upload, no server, no storage.
This tool checks structure: estimated width, phrase presence, voice and hygiene. It cannot predict whether Google shows your description at all (Google rewrites snippets for many queries), cannot measure how persuasive the copy is, and cannot promise a clickthrough. A description that passes every check here is well formed; that is all any deterministic check can honestly claim.
The pixel estimate deserves its own caveat, spelled out under the constants below: Google's truncation varies by device and is not a published spec. The tool reports "estimated N px against a commonly observed desktop limit of ~985px, an approximation, not a Google guarantee".
| Check | What it does |
|---|---|
| Estimated pixel width | Each character's width is looked up in a committed table of published Arial-compatible font metrics and summed at 13px, then compared with a commonly observed desktop limit of ~985px. Limits from the Screaming Frog SEO Spider user guide defaults (fetched 2026-07-14). An approximation, not a Google guarantee: Google does not publish truncation limits and adjusts them frequently. |
| Target phrase present | Checks whether the phrase you say the page targets appears in the description (case-insensitive). Google bolds matched words in snippets; presence is all this tool can verify. |
| Active voice | Reuses the manuscript analyzer's passive-voice detection (a form of "to be" or "to get" followed by a past participle) on the description. Reported, not moralised. |
| Whitespace and quote hygiene | Flags doubled whitespace and unbalanced or mixed quote marks, the copy-paste artefacts that survive into snippets. |
Limits from the Screaming Frog SEO Spider user guide defaults (fetched 2026-07-14). An approximation, not a Google guarantee: Google does not publish truncation limits and adjusts them frequently.
Why pixels and not characters? Because "160 characters" was never the real rule: Google truncates by rendered width, so a description full of wide letters truncates sooner than one full of narrow ones. Character counts are shown too, but the pixel estimate is the honest measure, within the approximation stated above.
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