Analyseur de balises méta
Paste a page\u2019s HTML
source and instantly analyze every meta tag — title length, description length, viewport, canonical, Open Graph (Facebook/LinkedIn), Twitter Card, and structured-data presence. Spot issues before they hurt your SEO.Coller HTML
How to use the Meta Tags Analyzer
Open the page you want to audit. View source (Cmd+U / Ctrl+U), copy the entire
section, and paste it into the input box. The tool extracts every meta tag and produces an audit with traffic-light scoring: green for healthy, yellow for warnings, red for missing critical tags.Pourquoi cet outil est important
Meta tags are the smallest, cheapest, and most consequential on-page SEO investment. A missing canonical tag invites duplicate-content penalties. A missing OG image guarantees ugly social shares. A missing viewport meta makes mobile rankings collapse. The Meta Tags Analyzer surfaces every issue in one glance.
Cas d'utilisation courants
- Pre-launch SEO audit on a new page
- Diagnosing why a competitor outranks you (paste their head, paste yours, compare)
- Confirming developers shipped what you specified
- Identifying missing Open Graph tags before a social campaign goes live
- Onboarding new client sites — quick first-pass audit
- Training new SEO hires on what a healthy meta block looks like
What the audit checks
Title tag (length and presence), meta description (length and presence), canonical link, viewport, robots, Open Graph (og:title, og:description, og:image), Twitter Card, JSON-LD schema blocks, and charset. Each gets a traffic-light score: green is healthy, yellow is improvable, red is broken or missing-critical.
Foire aux questions
Why do I have to paste the source instead of just entering a URL?
Browser security (CORS) prevents tools running in your browser from fetching arbitrary URLs. A server-side fetcher would be paid; pasting the source keeps the tool free, fast, and private.
Where do I find the source?
In Chrome: Cmd+Option+U (Mac) or Ctrl+U (Windows/Linux) to view source. Copy from
Does it audit the rendered DOM or the source HTML?
The source HTML — which is what most crawlers see. For pages that inject meta tags client-side with JavaScript, audit the rendered output instead (use a tool like Screaming Frog with JS rendering).
What is a healthy title length?
50-60 characters. Below 30 you are leaving CTR opportunity on the table. Above 60 Google truncates with an ellipsis.
Need a full technical SEO audit, not just meta tag checks?
Riman Agency runs end-to-end technical SEO programs for ambitious brands.
