LCP
Largest Contentful Paint
3.0s
Needs Improvement
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Eliminate Render Blocking CSS
How to optimize meetaugust.ai
Eliminate Render Blocking CSS
High Impact+8 points estimated
Why It Matters
CSS files are blocking initial render and delaying LCP by 600ms.
How to Fix
In your Next.js app, move critical CSS inline in the <head> section and defer non-critical styles. Use Next.js's built-in CSS optimization by importing only necessary styles per page. Consider using CSS-in-JS solutions like styled-components for component-specific styles.
0Good
What This Score Means
A score of 92 falls in the "Good" range (50-89). While it is better than poor (0-49), you should aim for 90+ to provide an optimal user experience and maximize SEO benefits.
This site is slower than approximately 35% of similar sites. The main issues affecting performance are image optimization, JavaScript execution time, and layout stability.
Addressing these issues could improve your conversion rate by 15-20% and boost your search engine rankings.
Core Web Vitals Analysis
INP
Interaction to Next Paint
120ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.00
Good
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This Next.js/React site performs well overall with a score of 92/100, but has one critical issue significantly impacting user experience. The biggest problem is render-blocking CSS files that are delaying the initial page display by 600ms, which directly affects how quickly users see content. Additionally, the site is carrying 129KB of unused JavaScript (particularly from Material-UI components and Google Analytics) and using outdated JavaScript polyfills that aren't needed for modern browsers, adding unnecessary weight. Fixing the render-blocking CSS by inlining critical styles and removing unused JavaScript could improve the Time to Interactive from 8.8 seconds to a much more acceptable level.
Other Optimization Recommendations
Remove Unused JavaScript Code
High Impact+6 points estimatedWhy It Matters:
129 KiB of unused JavaScript is slowing down page load and blocking main thread execution.
How to Fix:
Use Next.js dynamic imports to code-split your MUI components and load them only when needed. Configure your webpack bundle analyzer to identify unused Google Analytics features and implement gtag with selective tracking. Tree-shake unused MUI components by importing specific modules instead of the entire library.
Update JavaScript Build Target
Medium Impact+4 points estimatedWhy It Matters:
16 KiB of unnecessary polyfills are being shipped for modern browser features already supported.
How to Fix:
Update your Next.js configuration to target modern browsers by setting 'browserslist' in package.json to exclude legacy browsers. Configure Babel preset-env with 'browserslist: defaults and supports es6-module' to avoid transpiling modern JavaScript features like Array.prototype.flat and Object.fromEntries.
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Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Remove Unused JavaScript Code
46KB of unused JavaScript delays LCP by 300ms and wastes bandwidth on mobile users.
Optimize Image Sizing and Compression
Oversized images waste 84KB and delay LCP by 150ms with unnecessary data transfer.
Eliminate Render Blocking CSS
Blocking CSS delays LCP and FCP by 850ms, preventing users from seeing content quickly.
Remove Unused CSS and JavaScript
310KB of unused CSS and legacy JavaScript polyfills are unnecessarily bloating your bundles and slowing page load.