Remove Unused JavaScript and CSS

How to optimize staging.freshairfitness.co.uk

WordPress SiteScore: 65/100Analyzed January 2026

Remove Unused JavaScript and CSS

High Impact+18 points estimated

Why It Matters

222 KiB of unused JavaScript and 53 KiB of unused CSS block rendering and delay LCP by 450ms total.

How to Fix

Remove unused Bootstrap CSS classes or use PurgeCSS to strip unused styles. Defer Google Tag Manager and Font Awesome loading until after page load. Use WP Asset CleanUp to conditionally load scripts only where needed.

0Needs Improvement

What This Score Means

A score of 65 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

LCP

Largest Contentful Paint

2.9s
Needs Improvement

Good: < 2.5s

Measures how long it takes for the main content to appear on screen

INP

Interaction to Next Paint

109ms
Good

Good: < 200ms

Measures how quickly the page responds to user interactions

CLS

Cumulative Layout Shift

0.73
Poor

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 65/100, primarily due to severe layout stability issues that cause content to jump around as the page loads (Cumulative Layout Shift score of 0.73). The biggest problem is that the page takes 8.3 seconds to become fully interactive, mainly caused by 222 KiB of unused JavaScript from Google Tag Manager and tracking scripts, plus 53 KiB of unused CSS from Bootstrap. Additionally, web fonts are loading without proper optimization, causing text to shift when they load, and images lack proper width/height attributes which contributes to the layout instability. Removing unused code, optimizing font loading with font-display: swap, and adding explicit image dimensions could improve the score by 25+ points and dramatically reduce the jarring visual shifts users experience.

Other Optimization Recommendations

Eliminate Web Font Layout Shifts

High Impact+25 points estimated

Why It Matters:

Custom fonts cause 0.73 CLS score due to text repositioning when fonts load, severely impacting user experience.

How to Fix:

Add font-display: swap to your custom Odudosoft fonts in CSS. Use font metric overrides or size-adjust to match fallback fonts. Preload critical font files using <link rel='preload'> in your WordPress theme's header.php.

Implement Proper Browser Caching

Medium Impact+12 points estimated

Why It Matters:

3.6MB of assets load without caching headers, forcing repeat downloads and delaying LCP by 850ms.

How to Fix:

Configure WordPress caching plugin like W3 Total Cache or WP Rocket with 1-year expiry for static assets. Set cache headers for images, videos, and fonts in .htaccess or server config. Enable Gzip compression for all text resources.

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