LCP
Largest Contentful Paint
4.1s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Reduce JavaScript Execution Time
How to optimize onthemarkhvac.com
WordPress SiteScore: 68/100Analyzed January 2026
Reduce JavaScript Execution Time
High Impact+18 points estimated
Why It Matters
JavaScript execution takes 1.4 seconds and blocks the main thread for 600ms, severely impacting TBT and user interactivity.
How to Fix
Remove or defer unused JavaScript from ServiceTitan scheduler (182KB unused) and Formidable Pro (102KB unused). Use WP Asset CleanUp to conditionally load scripts only where needed. Move Google Maps and tracking scripts to load after page interactive using defer or async attributes.
0Needs Improvement
What This Score Means
A score of 68 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
379ms
Needs Improvement
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 WordPress site has poor performance with a score of 68/100, and users experience extremely slow interactivity with a 22.5-second Time to Interactive. The biggest problem is excessive JavaScript execution taking 1.4 seconds, which blocks the main thread and prevents users from interacting with the page effectively. The site is loading over 1MB of unused JavaScript and CSS, particularly from third-party services like ServiceTitan scheduler and Google Maps, which could be deferred or removed entirely. Reducing JavaScript payloads, optimizing images (which could save 217KB), and implementing proper caching could potentially improve the performance score by 25+ points and dramatically reduce loading times.
Other Optimization Recommendations
Eliminate Render-Blocking CSS
High Impact+15 points estimatedWhy It Matters:
Render-blocking stylesheets delay First Contentful Paint by 900ms and impact LCP timing.
How to Fix:
Inline critical above-the-fold CSS directly in the HTML head. Use WP Rocket's CSS optimization to defer non-critical stylesheets like Dashicons (36KB) and third-party CSS. Remove unused CSS rules, especially from ServiceTitan (174KB) and Google Maps (49KB).
Optimize Image Delivery
Medium Impact+8 points estimatedWhy It Matters:
Oversized images waste 217KB of bandwidth and slow down perceived performance.
How to Fix:
Resize the HVAC upgrade image to match its displayed dimensions (511x681 instead of 1000x1333). Convert Google profile images to WebP format and implement responsive image sizes. Use WordPress's srcset attribute or a plugin like Smush to automatically serve appropriately sized images.
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WordPress Performance Resources
Clean Up Unused CSS Rules
67% of your CSS (19 KiB) is unused, increasing initial page load time unnecessarily.
Optimize Image Sizing and Format
Oversized images are wasting 26 KiB and contributing to slower LCP on mobile devices.
Remove Unused JavaScript Libraries
Unused JavaScript is wasting 125 KiB and delaying LCP by 750ms, severely impacting user experience.
Add Image Dimensions and Optimize
Missing image dimensions cause layout shifts and oversized images waste 27KB of bandwidth affecting load times.
Frequently Asked Questions
Keep Your Site Fast After Optimization
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