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Analyseur Ressources Bloquant le Rendu — Outil en ligne gratuit

Trouve scripts + CSS bloquant le premier paint

Colle ton HTML head → trouve scripts et CSS bloquant le rendu. Recommandations async/defer/preload. Gratuit sans inscription.

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Render-blocking analyzer

How to use this tool

  1. 1

    Paste HTML head

  2. 2

    See blocking resources

Frequently Asked Questions

Render-blocking?
Scripts without async/defer and CSS without media attr block the critical rendering path. Directly hurts LCP.

À retenir

  • Render-Blocking Resource Analyzer is a free, browser-based seo & web tool — find scripts + css blocking first paint.
  • Non signup, no downloads, no file uploads. Outils run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Render-Blocking Resource Analyzer

  1. Open the tool: Launch Render-Blocking Resource Analyzer on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Render-Blocking Resource Analyzer — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
Traité dans votre navigateur. Les outils qui ont besoin d’un service externe l’indiquent sur la page. Les visites sont comptabilisées (Google Analytics).
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
SEO & Web Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilRender-Blocking Resource Analyzer
CatégorieSEO & Web
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use Render-Blocking Resource Analyzer?

You should try Render-Blocking Resource Analyzer for a quick, private way to find scripts + css blocking first paint. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.