LCP
Largest Contentful Paint
7.6s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Eliminate Render-Blocking CSS Resources
How to optimize zadom.hr
Generic SiteScore: 66/100Analyzed December 2025
Eliminate Render-Blocking CSS Resources
High Impact+12 points estimated
Why It Matters
CSS files are blocking page rendering for 790ms, directly delaying First Contentful Paint and user experience.
How to Fix
Inline critical above-the-fold CSS directly in the HTML head. Use media='print' onload='this.media="all"' to defer non-critical CSS like quill.snow.css. Consider splitting the large compresed.css (84KB) into critical and non-critical portions.
0Needs Improvement
What This Score Means
A score of 66 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
181ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.01
Good
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This website has poor performance with a score of 66/100, primarily due to extremely slow loading times - it takes 7.6 seconds for the largest content to appear on screen. The biggest issue is a redirect from the non-www to www version that wastes 780ms before the page even starts loading, combined with massive amounts of unused CSS (104 KiB) and JavaScript (519 KiB) that aren't needed for the initial page view. The site also serves oversized images that could be reduced by 841 KiB using modern formats like WebP and proper sizing. Fixing the redirect, removing unused code, and optimizing images could dramatically improve loading speeds and boost the performance score by 30+ points.
Other Optimization Recommendations
Remove Unused CSS and JavaScript
High Impact+18 points estimatedWhy It Matters:
1MB of unused code is downloaded unnecessarily, wasting 1050ms and slowing LCP by 900ms.
How to Fix:
Use PurgeCSS to remove 96% unused CSS from compresed.css (80KB savings). Tree-shake JavaScript bundles to eliminate 519KB unused code from vendors~app.bundle.js. Consider code splitting to load only necessary components per page.
Fix Redirect Chain Performance
Medium Impact+8 points estimatedWhy It Matters:
Page redirect from zadom.hr to www.zadom.hr wastes 780ms before content loading even begins.
How to Fix:
Update all internal links to point directly to https://www.zadom.hr/. Configure server redirect to be a 301 permanent redirect. Consider implementing HSTS headers to force HTTPS without redirects for returning visitors.
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Fix Redirect Chain Performance
Page redirect from zadom.hr to www.zadom.hr wastes 780ms before content loading even begins.
Remove Unused CSS and JavaScript
1MB of unused code is downloaded unnecessarily, wasting 1050ms and slowing LCP by 900ms.
Fix Forced Reflows and JavaScript
JavaScript is causing 35ms of forced reflows and 103KB of unused Google Analytics code is blocking resources.
Optimize and Resize Images
Oversized images are wasting 237KB of bandwidth and delaying LCP by 150ms while causing layout shifts.
Frequently Asked Questions
Keep Your Site Fast After Optimization
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