LCP
Largest Contentful Paint
2.7s
Needs Improvement
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Reserve Space for Dynamic Elements
How to optimize pabitovr.github.io
Reserve Space for Dynamic Elements
High Impact+20 points estimated
Why It Matters
Multiple elements are shifting position during load, creating a poor user experience and CLS score of 1.148.
How to Fix
Add explicit height and width CSS properties to the preset buttons container and calculator button. Use CSS skeleton screens or min-height properties to reserve space before content loads. Avoid inserting content above existing elements without reserved space.
0Needs Improvement
What This Score Means
A score of 72 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
22ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
1.15
Poor
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This generic website has moderate performance issues with a score of 72/100. The biggest problem is severe layout shifting (CLS score of 1.148), which is primarily caused by web fonts loading late and causing page elements to jump around as they render. The site also has a decent Largest Contentful Paint of 2.7 seconds, but this could be improved with better caching policies that would save about 7KB of resources. Fixing the font loading issues by preloading web fonts or using font-display: swap would dramatically improve user experience by eliminating the jarring layout shifts that occur as the page loads.
Other Optimization Recommendations
Optimize Web Font Loading Strategy
High Impact+25 points estimatedWhy It Matters:
Web fonts are causing massive layout shifts (CLS 1.148) as they load and reflow content throughout the page.
How to Fix:
Add font-display: swap to your CSS font-face declarations for Inter and JetBrains Mono. Preload critical fonts in HTML head with <link rel='preload' href='font-url' as='font' type='font/woff2' crossorigin>. Use fallback fonts with similar metrics to minimize layout shift during font swap.
Implement Long-term Asset Caching
Medium Impact+8 points estimatedWhy It Matters:
Short cache lifetimes force unnecessary re-downloads of static assets, slowing repeat visits and wasting 7 KiB of bandwidth.
How to Fix:
Configure GitHub Pages to serve CSS files with longer cache headers (1 year for versioned files). Add cache-busting parameters to your style.css when making changes. Consider using a CDN like Cloudflare for better cache control and performance.
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Optimize Network Request Chain
Your CSS dependency creates a 348ms critical request chain that delays content rendering and impacts Speed Index.
Inline Critical CSS Styles
The external CSS file is blocking initial page render, directly delaying First Contentful Paint by 156ms.
Implement Long-term Asset Caching
Short cache lifetimes force unnecessary re-downloads of static assets, slowing repeat visits and wasting 7 KiB of bandwidth.
Optimize Web Font Loading Strategy
Web fonts are causing massive layout shifts (CLS 1.148) as they load and reflow content throughout the page.