Eliminate Unused JavaScript Bundle

How to optimize auto.ria.com

Vue SiteScore: 56/100Analyzed June 2026Re-analyze this site

Eliminate Unused JavaScript Bundle

High Impact+15 points estimated

Why It Matters

753 KiB of unused JavaScript delays LCP by 750ms and blocks main thread execution.

How to Fix

Use Vue CLI's bundle analyzer to identify dead code in NC7yBeWJ1780402474583.js (89% unused). Implement dynamic imports for route-specific components. Remove unused Google Ads and authentication scripts, or defer them until user interaction.

0Needs Improvement

What This Score Means

A score of 56 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

LCP

Largest Contentful Paint

5.8s
Poor

Good: < 2.5s

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

INP

Interaction to Next Paint

339ms
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 Vue.js site has poor performance with a score of 56/100. The biggest problem is excessive unused JavaScript (753 KiB wasted) from advertising scripts and the main Vue bundle, which is blocking the page from becoming interactive for over 21 seconds. Additionally, inefficient cache settings are wasting 910 KiB on repeat visits, and render-blocking CSS is delaying initial page rendering by 1.2 seconds. Removing unused JavaScript, implementing better caching policies, and deferring non-critical resources could improve the score by 30+ points and dramatically reduce loading times from the current 5.8 seconds.

Other Optimization Recommendations

Implement Efficient Resource Caching

High Impact+18 points estimated

Why It Matters:

Poor cache policies waste 910 KiB on repeat visits and delay LCP by 1.1 seconds.

How to Fix:

Configure long-term caching for static assets by setting Cache-Control headers to 'public, max-age=31536000' for Vue build files and images. Use CDN versioning for cache busting. Set Facebook SDK and image assets to cache for at least 7 days instead of current 20-minute policy.

Optimize Image Delivery Pipeline

Medium Impact+8 points estimated

Why It Matters:

Oversized images waste 321 KiB bandwidth and delay LCP by 200ms on mobile connections.

How to Fix:

Implement Vue's responsive image component with srcset for different screen sizes. Compress WebP images further using tools like Squoosh or ImageOptim. Serve 154x102 thumbnails instead of 345x250 for gallery preview images to match display dimensions.

Keep Your Site Fast After Optimization

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