Reduce Main Thread Blocking

How to optimize icicilombard.com

Generic SiteScore: 16/100Analyzed January 2026

Reduce Main Thread Blocking

High Impact+20 points estimated

Why It Matters

7.9 seconds of main thread work creates 2.6 seconds of blocking time, preventing user interactions.

How to Fix

Split large JavaScript tasks using setTimeout or requestIdleCallback to yield control back to the browser. Move heavy computation to Web Workers where possible. Defer non-critical third-party scripts like Facebook Pixel and analytics until after page load using async/defer attributes.

0Poor

What This Score Means

A score of 16 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

30.7s
Poor

Good: < 2.5s

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

INP

Interaction to Next Paint

1239ms
Poor

Good: < 200ms

Measures how quickly the page responds to user interactions

CLS

Cumulative Layout Shift

0.21
Needs Improvement

Good: < 0.1

Measures visual stability - how much content shifts during page load

AI Performance Analysis

This ICICI Lombard two-wheeler insurance page has severe performance issues with an extremely poor score of 16/100. The biggest problem is excessive JavaScript execution that blocks the main thread for nearly 8 seconds, causing the page to become interactive only after 32+ seconds - an unacceptable user experience. The site loads over 1.4MB of unused JavaScript code and suffers from major layout shifts (CLS of 0.214) as content loads, particularly affecting mobile users. Immediately reducing JavaScript bundle sizes, removing unused code, and implementing proper image sizing could potentially improve the performance score by 50+ points and dramatically reduce loading times from 30+ seconds to under 5 seconds.

Other Optimization Recommendations

Eliminate Unused JavaScript Bundles

High Impact+25 points estimated

Why It Matters:

1.4MB of unused JavaScript is blocking page rendering and delaying LCP by 7 seconds.

How to Fix:

Implement code splitting in your Angular builds to load only required modules per route. Remove unused polyfills for modern browsers - your ES5 polyfills bundle contains 66KB of unnecessary code. Use webpack-bundle-analyzer to identify and eliminate dead code from your main bundles.

Fix Layout Shift Issues

Medium Impact+12 points estimated

Why It Matters:

Layout shifts of 0.214 are causing content to jump during page load, hurting user experience.

How to Fix:

Add explicit width and height attributes to all images, especially the WhatsApp and logo images causing shifts. Reserve space for dynamic content with CSS aspect-ratio or min-height properties. Preload the Muli font using <link rel='preload'> to prevent text shifting when the font loads.

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