SERP Snippet & Truncation Checker
Free, no signup. Measure title and description widths with consistent font stand-ins and compare them with configurable preview guidance. Google does not publish a fixed pixel cutoff and may rewrite either field.
Compare title variants
Score up to two alternatives beside the title above. Scores are directional writing heuristics, not CTR predictions.
Example data — replace with your own
Runs entirely in your browser — nothing you paste is uploaded or stored. Anonymous run-level outcome counters may be used for aggregate research; URLs, domains, IPs, and identifiers are never included, and no statistic is released below 100 runs.
Google can choose or reshape title links and snippets based on the search context. Treat every configured width and status here as editing guidance, not a display guarantee.
What this result means ↓| # | Title | Desktop title | Mobile title | Desktop desc. | Mobile desc. | Impressions | Flags |
|---|
Your file is parsed locally in your browser and never uploaded. Flags marked "rewrite risk" are patterns that tend to trigger Google rewrites — hints, not verdicts.
Sample report Illustrative example — use the checker above for a live measurement
Say you enter this title and description for a page on acme.example:
…and the desktop preview returns:
- The title exceeds this product's desktop preview setting. It measures 642px against the configured 580px width; the simulation fades the remainder after "Enterprise." See what PASS/WARNING/ERRORS mean for how the thresholds work.
- The description only warns. 874 of 920px remains within the configured mobile preview width but close enough to review — treat it as a product cue, not a display prediction.
- The practical edit is front-loading. Put the distinct part of the title first and
consider a shorter draft, e.g.
Technical SEO Audits for Enterprise Sites | Acme, then re-check. - For the writing rules behind these numbers, see the title tag and meta description guides.
How to use it
- Type or paste your title tag and meta description into the Single check form. A live character count sits under each field.
- Add the page URL so the preview shows a realistic domain, favicon, and breadcrumb.
- Read the two previews — Desktop and Mobile — side by side. Text beyond the configured preview width is faded, and each has a guidance badge.
- Check the width meters under each preview for the measured width against the selected preview setting; toggle Dark SERP or Copy shareable link as needed.
- Got a site export? Switch to the Bulk (CSV) tab, map your columns, and check every row at once with a downloadable results CSV.
Site passport Local context for this saved site
Local data
Saved targets, named lists, and recent check summaries remain only in this browser.
Rate this tool
This checker measures title-tag and meta-description widths with consistent font stand-ins and compares them with configurable preview settings. Read the title tag and meta description guides for the writing rules behind the numbers.
What the results mean
Every field gets a pixel width and a status colour on the meter, rolled up into a badge per device:
- PASS (green) — the text fits comfortably within this product's configured preview band for that device.
- WARN (amber) — the text is past the product's warning threshold but remains inside its configured preview width.
- ERRORS (red) — the text exceeds the configured preview width; the faded tail shows the portion outside that product setting, not where Google is guaranteed to cut it.
| Rating | Desktop title | Mobile title | Character count |
|---|---|---|---|
| Pass | ≤ 480 px | ≤ 700 px | A rough secondary check |
| Warn | 481–580 px | 701–920 px | Measure rendered pixels |
| Fail | > 580 px | > 920 px | Never decide by characters alone |
In the Bulk tab, each row also carries text flags:
- missing title / missing description — the field is empty in that row.
- duplicate title — the exact title appears on more than one row in the file.
- rewrite risk — product heuristics for patterns worth reviewing, such as all-caps titles, very short titles, keyword repetition, boilerplate prefixes, or emoji. They do not predict a rewrite.
How it works
Everything runs client-side. The tool draws your text onto an off-screen HTML canvas and calls
measureText with controlled web fonts — Arimo (metrically compatible with Arial)
for desktop, Roboto for mobile — to get a consistent rendered pixel width. Because measurements depend
on the font, the tool waits for document.fonts.ready before computing, so numbers come
from the real metrics rather than a fallback face.
A binary search finds the longest prefix that fits the configured preview width, which drives the faded tail in the simulation. The product settings live in one small config file and carry a last verified date that hides itself once it goes stale.
Features
- Consistent measured-width title and description previews using Arial- and Roboto-metric web fonts.
- Separate desktop and mobile simulations with consistent font stand-ins, single-line vs. wrapping titles, and configurable per-device preview widths.
- Live faded-width preview plus a measured-width meter and guidance badge per field.
- Favicon-style site marker, site name, and breadcrumb rendered from the URL you enter; Dark SERP toggle.
- Shareable links that encode your title/description/URL in the URL fragment.
- Bulk CSV/TSV mode with column mapping, duplicate + rewrite-risk detection, and results export — all parsed locally.
Limitations
Google can pick and reshape snippets and title links based on search context, so the configured preview widths are editing guidance, not published limits or display guarantees. The tool only shows a verification date after live-SERP calibration, and hides stale dates. The previews are a faithful mock, not a live pull from Google; they don't fetch your page, render rich results (sitelinks, ratings, dates), or reflect personalisation. The "rewrite risk" flags are heuristics that flag patterns Google tends to rewrite, not verdicts.
Frequently asked questions
Why measure title tags in pixels instead of characters?
Google does not publish a fixed pixel cutoff for title links or snippets, and it may rewrite either field. Proportional text still means an “m” takes more space than an “i.” This tool uses consistent Arial-compatible and Roboto font metrics to compare drafts with configurable preview widths; the result is guidance, not a guarantee of Google’s display.
How many pixels wide can a title tag be before it truncates?
Google does not publish a fixed cutoff. This tool currently uses configurable 580px desktop and 920px mobile preview settings, with a warning band below each one. Those values are product guidance, not Google limits or a prediction of where a real result will be shortened or rewritten.
Will Google always show the meta description I write?
No. Google primarily creates snippets from page content and may use the meta description when it better describes the page for a search. Treat every width result and rewrite-risk pattern here as editing guidance, not a rule or display prediction.
What are the mobile and desktop previews showing me?
Two side-by-side mock listings — desktop (Arial-metric font) and mobile (Roboto-metric font) — with your URL, title, and description compared with configured preview widths. Text beyond a product setting is faded, and a meter reports measured width with a guidance badge.
Can I check a whole site export at once?
Yes. The Bulk (CSV) tab takes a Screaming Frog, Sitebulb, or CMS export, lets you map the title/description/URL columns, and checks every row in your browser. It flags drafts beyond the configured preview widths, duplicate titles, and heuristic rewrite-risk patterns, then lets you export the annotated results as CSV. The file is parsed locally and never uploaded.
Feature requests for Serp Snippet Checker
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Sobre a ferramenta
Meça as larguras de títulos e meta descrições com fontes substitutas consistentes e compare-as com orientações configuráveis de prévia para desktop e celular.
A largura configurada é de 580 px; a simulação esmaece o restante depois de "Enterprise." Veja como o texto ficaria antes de revisar o rascunho.
Recursos
- Dois resultados simulados lado a lado — desktop (métricas da fonte Arial) e celular (métricas da fonte Roboto) — com URL, título e descrição comparados às larguras de prévia configuradas. O texto além do limite é esmaecido, e um medidor mostra a largura medida com um selo de orientação.
- Simulações separadas para desktop e celular, com fontes substitutas consistentes e modos de uma linha ou de quebra de linha.
- Modo em massa por CSV/TSV, com mapeamento de colunas, detecção de duplicatas e risco de reescrita, além de exportação dos resultados.
- Sim. A aba Em massa (CSV) aceita uma exportação do Screaming Frog, Sitebulb ou CMS, permite mapear as colunas de título, descrição e URL e verifica cada linha no navegador. Ela sinaliza rascunhos além das larguras configuradas, títulos duplicados e padrões heurísticos de risco de reescrita e permite exportar os resultados anotados como CSV. O arquivo é analisado localmente e nunca é enviado.
Como funciona
Meça as larguras de títulos e descrições com fontes substitutas consistentes e compare-as com as larguras de prévia configuradas.
Limitações
- O Google não publica um limite fixo em pixels para links de título ou snippets e pode reescrever qualquer um dos campos. Como as letras têm larguras proporcionais, “m” ocupa mais espaço que “i”. Esta ferramenta usa métricas de fontes compatíveis com Arial e Roboto para comparar rascunhos com larguras configuráveis; o resultado é uma orientação, não uma garantia de exibição do Google.
- As orientações de prévia são configuráveis. O Google não publica um limite fixo em pixels e pode reescrever qualquer campo.
Perguntas frequentes
Quantos pixels de largura um título pode ter antes de ser truncado?
O Google não publica um limite fixo. Esta ferramenta usa atualmente configurações de prévia de 580 px no desktop e 920 px no celular, com uma faixa de aviso abaixo de cada limite. Esses valores são orientações do produto, não limites do Google nem uma previsão de onde um resultado real será encurtado ou reescrito.
O Google sempre exibirá a meta descrição que escrevi?
Não. O Google cria principalmente snippets a partir do conteúdo da página e pode usar a meta descrição quando ela descreve melhor a página para a pesquisa. Considere cada resultado de largura e padrão de risco de reescrita como orientação de edição, não como regra ou previsão de exibição.
Por que medir títulos em pixels em vez de caracteres?
O Google não publica um limite fixo em pixels para links de título ou snippets, e pode reescrever qualquer campo. Como as letras têm larguras proporcionais, “m” ocupa mais espaço que “i”. Esta ferramenta usa métricas de fontes compatíveis com Arial e Roboto para comparar rascunhos com larguras configuráveis; o resultado é orientação, não garantia de exibição.
Posso verificar uma exportação de site inteiro de uma vez?
Sim. A aba Em massa (CSV) aceita uma exportação do Screaming Frog, Sitebulb ou CMS, permite mapear as colunas de título, descrição e URL e verifica cada linha no navegador. Ela sinaliza rascunhos além das larguras configuradas, títulos duplicados e padrões heurísticos de risco de reescrita e permite exportar os resultados anotados como CSV. O arquivo é analisado localmente e nunca é enviado.