LCP
Largest Contentful Paint
3.6s
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 staging.learn.wowlearnings.org
Eliminate Render Blocking CSS
High Impact+15 points estimated
Why It Matters
CSS files are blocking initial render and delaying LCP by 550ms with 93% unused CSS rules.
How to Fix
Use Next.js CSS optimization by splitting critical CSS with next/dynamic and code splitting. Extract above-the-fold CSS and inline it, then load remaining CSS asynchronously. Remove unused CSS rules from the 31KB stylesheet using PurgeCSS or Next.js built-in CSS tree-shaking.
0Needs Improvement
What This Score Means
A score of 81 falls in the "Needs Improvement" 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
144ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.01
Good
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This Next.js site has good performance with a score of 81/100, but there's significant room for improvement. The biggest problem is render-blocking CSS files that are delaying your page's initial display by 570ms, particularly a large stylesheet that's 93% unused CSS. Your site is also loading 281KB of unnecessary JavaScript and using outdated JavaScript polyfills that add another 40KB of bloat. Cleaning up these unused assets and optimizing your CSS delivery could easily push your score above 90 and dramatically improve your 9.4-second Time to Interactive.
Other Optimization Recommendations
Reduce JavaScript Bundle Size
High Impact+12 points estimatedWhy It Matters:
281KB of unused JavaScript is increasing LCP by 150ms and blocking main thread execution for 2.2 seconds.
How to Fix:
Enable Next.js tree-shaking and dynamic imports for Google Analytics and large components. Use next/dynamic with ssr: false for non-critical components. Split vendor bundles and lazy load third-party scripts like Google Tag Manager after page interaction.
Update JavaScript Build Target
Medium Impact+8 points estimatedWhy It Matters:
Legacy JavaScript polyfills add 40KB of unnecessary code for modern browsers supporting ES6+ features.
How to Fix:
Update Next.js config to target modern browsers by setting target: 'es2017' in next.config.js. Remove polyfills for Array.prototype.at, Object.hasOwn, and other modern features. Configure Babel to exclude unnecessary transforms for current browser support matrix.
Keep Your Site Fast After Optimization
Once your site is optimized, maintain that speed. Use DeployHQ for zero-downtime, automated deployments—so performance fixes and updates go live safely every time, without breaking your site.
Explore DeployHQ →Trusted by engineering teams shipping high-performance sites
Want to Analyze YOUR Website?
Get AI-powered performance insights with actionable fixes in 30 seconds
Related Performance Analyses
More Next.js Speed Tests
Next.js Performance Resources
Optimize Cache Strategy
Poor caching configuration forces users to re-download resources on repeat visits, missing opportunities for faster load times.
Remove Unused JavaScript Code
356KB of unused JavaScript is bloating your bundle size and slowing down page load without providing value.
Eliminate Render-Blocking CSS Resources
CSS files are blocking initial page render and delaying FCP by 1 second, directly impacting user experience.
Optimize CSS Delivery Strategy
Render-blocking CSS delays First Contentful Paint by 900ms, preventing users from seeing content quickly.