LCP
Largest Contentful Paint
6.8s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize Video File Caching
How to optimize zifornd.com
Generic SiteScore: 64/100Analyzed February 2026
Optimize Video File Caching
High Impact+15 points estimated
Why It Matters
17MB of video content has zero cache lifetime, forcing full re-downloads on every visit and wasting 69MB of bandwidth.
How to Fix
Set proper cache headers for video files (home-banner-animation.webm and manufacturing videos) with max-age of 31536000 (1 year). Configure CDN caching rules in NitroPack or CloudFlare for .webm files. Consider compressing videos further or using different formats for mobile devices.
0Needs Improvement
What This Score Means
A score of 64 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
120ms
Good
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 website has poor performance with a score of 64/100, primarily due to slow loading of critical resources. The biggest problem is render-blocking JavaScript files that are delaying the First Contentful Paint by 750ms, while also suffering from extremely large video files (over 70MB total) that lack proper caching. The site is experiencing forced reflows that hurt user experience, and there's significant unused JavaScript and CSS that could be removed to improve loading times. Implementing proper caching for video content, deferring non-critical JavaScript, and removing unused code could dramatically improve both the performance score and user experience.
Other Optimization Recommendations
Defer Render-Blocking JavaScript
High Impact+18 points estimatedWhy It Matters:
JavaScript files are blocking initial page render, delaying FCP by 750ms and preventing users from seeing content.
How to Fix:
Add async or defer attributes to non-critical JavaScript files, especially jQuery and Elementor scripts. Move jQuery to load after initial render using wp_enqueue_script with 'defer' parameter. Configure NitroPack to defer JavaScript execution until after FCP.
Remove Unused JavaScript Code
Medium Impact+12 points estimatedWhy It Matters:
Google Tag Manager scripts contain 139KB of unused code, slowing LCP by 600ms and wasting processing time.
How to Fix:
Audit Google Tag Manager containers (GTM-TZ239QN and GTM-MB2LXBPM) to remove unused tags and triggers. Consolidate duplicate GTM containers if possible. Use Partytown to run analytics scripts in web workers to avoid blocking main thread execution.
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Remove Unused JavaScript Code
Google Tag Manager scripts contain 139KB of unused code, slowing LCP by 600ms and wasting processing time.
Defer Render-Blocking JavaScript
JavaScript files are blocking initial page render, delaying FCP by 750ms and preventing users from seeing content.
Remove Unused CSS and JavaScript
136KB of unused JavaScript and 63KB of unused CSS waste bandwidth and slow down page parsing.
Optimize Large Video File Caching
18MB of video content lacks proper caching headers, forcing re-downloads on repeat visits and contributing to the 5-second LCP.
Frequently Asked Questions
Keep Your Site Fast After Optimization
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