Reduce Main Thread Blocking Time

How to optimize squeakyscleaning.com

WordPress SiteScore: 25/100Analyzed May 2026Re-analyze this site

Reduce Main Thread Blocking Time

High Impact+35 points estimated

Why It Matters

JavaScript execution blocks the main thread for 20.4 seconds, causing a Total Blocking Time of 4,290ms which severely impacts user interactions.

How to Fix

Remove or optimize the Elfsight Reviews widget (4+ seconds execution time). Defer reCAPTCHA loading until user interaction. Use WP Rocket to defer non-critical JavaScript and enable script optimization. Consider replacing heavy plugins with lighter alternatives.

0Poor

What This Score Means

A score of 25 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

13.0s
Poor

Good: < 2.5s

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

INP

Interaction to Next Paint

658ms
Poor

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 WordPress site has severe performance issues with a critically low score of 25/100. The biggest problem is excessive JavaScript execution taking over 20 seconds, primarily from third-party widgets like Elfsight reviews and Facebook tracking scripts that are blocking the main thread and causing a massive 4.3-second delay in user interactions. The site takes nearly 12 seconds just to show the first content and 13 seconds for the largest image to appear, which will frustrate users and hurt search rankings. Removing or optimizing these heavy JavaScript widgets, reducing unused code (over 2MB wasted), and implementing proper caching could potentially improve the performance score by 50+ points and dramatically enhance user experience.

Other Optimization Recommendations

Optimize Image Delivery Strategy

High Impact+25 points estimated

Why It Matters:

Images are oversized and delay LCP by 300ms, with the hero image loading lazily when it should load immediately.

How to Fix:

Remove lazy loading from the hero image and add fetchpriority='high' attribute. Install Imagify or ShortPixel to automatically compress and resize images to display dimensions. Convert large PNGs to WebP format for 30-50% size reduction.

Remove Unused JavaScript Resources

Medium Impact+15 points estimated

Why It Matters:

2,065 KiB of unused JavaScript increases load time and blocking time significantly.

How to Fix:

Use Asset CleanUp Pro to conditionally load YouTube embed scripts only when needed. Audit and remove unused WordPress plugins causing script bloat. Consider replacing the current review widget with a lighter alternative or custom solution.

Keep Your Site Fast After Optimization

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