Eliminate Render-Blocking CSS Resources

How to optimize whimstay.com

Generic SiteScore: 46/100Analyzed April 2026Re-analyze this site

Eliminate Render-Blocking CSS Resources

High Impact+18 points estimated

Why It Matters

CSS files are blocking page rendering and delaying First Contentful Paint by 1 second.

How to Fix

Inline critical CSS for above-the-fold content directly in the HTML. Use media queries to defer non-critical CSS or load it asynchronously with rel='preload' and onload handler. Consider CSS-in-JS solutions for Next.js to automatically optimize critical path.

0Poor

What This Score Means

A score of 46 falls in the "Poor" 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

LCP

Largest Contentful Paint

7.7s
Poor

Good: < 2.5s

Measures how long it takes for the main content to appear on screen

INP

Interaction to Next Paint

388ms
Needs Improvement

Good: < 200ms

Measures how quickly the page responds to user interactions

CLS

Cumulative Layout Shift

0.03
Good

Good: < 0.1

Measures visual stability - how much content shifts during page load

AI Performance Analysis

This vacation rental website has poor performance with a concerning score of 46/100. The biggest problem is render-blocking CSS files that are delaying the initial page display by 1 second, combined with excessive JavaScript that's keeping the page unresponsive for over 22 seconds. The site is loading over 6MB of data, with nearly half of the JavaScript going unused, and critical resources like third-party scripts from AWS WAF and Google Analytics are significantly slowing down the user experience. Fixing the render-blocking CSS, removing unused JavaScript, and optimizing the massive script payloads could potentially improve the score by 30+ points and drastically reduce load times.

Other Optimization Recommendations

Remove Unused JavaScript Code

High Impact+22 points estimated

Why It Matters:

Over 1MB of unused JavaScript is delaying LCP by 1.5 seconds and blocking user interactions.

How to Fix:

Use webpack-bundle-analyzer to identify unused code in your Next.js bundles. Implement dynamic imports for non-critical components. Remove or replace heavy third-party scripts like AWS WAF (512KB) and Google Analytics with lighter alternatives like Plausible.

Fix Forced Layout Reflows

Medium Impact+8 points estimated

Why It Matters:

JavaScript is causing 335ms of forced reflows, creating janky user experience and blocking interactions.

How to Fix:

Batch DOM reads and writes to avoid layout thrashing. Use CSS transforms instead of changing layout properties. Defer Google Maps initialization until user interaction or use static map images initially.

Keep Your Site Fast After Optimization

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