Add Image Dimensions and Caching

How to optimize sbsommar.se

Generic SiteScore: 96/100Analyzed March 2026Re-analyze this site

Add Image Dimensions and Caching

Medium Impact+1 point estimated

Why It Matters

Missing width/height attributes cause layout shifts and zero cache lifetime forces unnecessary re-downloads on repeat visits.

How to Fix

Add explicit width='70' height='70' attributes to your logo image and other content images. Configure your web server to set Cache-Control headers with max-age=31536000 (1 year) for image assets. Add proper dimensions even to lazy-loaded images to reserve layout space.

0Good

What This Score Means

A score of 96 falls in the "Good" 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

2.5s
Good

Good: < 2.5s

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

INP

Interaction to Next Paint

35ms
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 achieves an excellent performance score of 96/100, indicating very fast loading times for users. The main opportunity for improvement is optimizing image delivery, which could save 70 KB of data by properly resizing images that are currently much larger than their displayed dimensions (for example, a 375x375 pixel image being shown at only 140x105 pixels). Additionally, implementing browser caching for images could save an estimated 127 KB on repeat visits, and adding explicit width and height attributes to images would help prevent layout shifts as the page loads. While the overall performance is already strong with a Speed Index of 3.7 seconds, these image optimizations represent the most impactful remaining opportunities for enhancement.

Other Optimization Recommendations

Implement Responsive Image Sizing

High Impact+2 points estimated

Why It Matters:

Oversized images waste 70 KiB of bandwidth and delay perceived load time, particularly affecting mobile users.

How to Fix:

Create multiple image versions for different screen sizes using a tool like ImageMagick or online services. Update your HTML to use srcset attributes with appropriate sizes for testimonial images (60x60px actual display vs 375x375px current). For the hero image, serve 665x499px instead of 960x505px for mobile viewports.

Eliminate Render-Blocking CSS

High Impact+1 point estimated

Why It Matters:

Your external stylesheet blocks initial page render for 100ms, delaying First Contentful Paint.

How to Fix:

Inline critical CSS styles directly in the HTML head for above-the-fold content. Move non-critical CSS to load asynchronously using media='print' onload='this.media="all"' technique. Alternatively, split your stylesheet and only load essential styles synchronously.

Keep Your Site Fast After Optimization

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