LCP
Largest Contentful Paint
3.0s
Needs Improvement
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize Image Dimensions and Delivery
How to optimize decisionbyheart.com
Generic SiteScore: 89/100Analyzed January 2026
Optimize Image Dimensions and Delivery
High Impact+6 points estimated
Why It Matters
Oversized images waste 310 KiB of bandwidth and slow down page loading, particularly impacting mobile users.
How to Fix
Generate responsive image sizes using WordPress's built-in srcset functionality or plugins like ShortPixel. Resize the scroll-media-text mobile images from 1331px to appropriate display dimensions (657px width). Implement lazy loading for below-the-fold images and consider using WebP format with fallbacks.
0Needs Improvement
What This Score Means
A score of 89 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
176ms
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 good performance with a score of 89/100, but there are still some opportunities for improvement. The biggest issue is render-blocking JavaScript and CSS files that are delaying the initial page load by nearly 1 second, which directly impacts how quickly users see content. The site is also serving oversized images that waste 310 KB of bandwidth - images are being loaded at much higher resolutions than needed for their display size. Additionally, there's 234 KB of unused JavaScript from Google Analytics and Tag Manager that could be optimized or deferred to speed up the page.
Other Optimization Recommendations
Eliminate Render Blocking Resources
High Impact+8 points estimatedWhy It Matters:
Critical CSS and JavaScript files are blocking initial render, delaying LCP and FCP by 950ms.
How to Fix:
Inline critical CSS directly in the HTML head or use WordPress plugins like WP Rocket to automatically inline above-the-fold styles. Defer JavaScript files like email-encoder-bundle and i18n.min.js by adding async or defer attributes. Move non-critical CSS to load after first paint using media='print' onload technique.
Add Image Dimensions and Cache Headers
Medium Impact+4 points estimatedWhy It Matters:
Missing image dimensions cause layout shifts affecting CLS, while poor caching forces unnecessary re-downloads.
How to Fix:
Add explicit width and height attributes to all SVG logos and images, especially the header logo and Terranor logos. Configure server-side caching headers for matomo.js and other analytics scripts to cache for at least 1 year. Use WordPress caching plugins like W3 Total Cache to set proper browser cache lifetimes.
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Related Performance Analyses
More Generic Speed Tests
Generic Performance Resources
Implement Hero Image Optimization
The LCP hero image takes 21.6 seconds to load due to poor compression and oversized dimensions.
Optimize JavaScript Bundle Size
889KB of unused JavaScript delays LCP by 4.3 seconds and blocks user interactions for 1.3 seconds.
Eliminate Critical Request Redirects
Page redirects add 750ms delay before any content can load, severely impacting all Core Web Vitals.
Fix Image Delivery Performance
Images are oversized and unoptimized, wasting 462KB of bandwidth and slowing page load.
Frequently Asked Questions
Keep Your Site Fast After Optimization
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