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Performance SEO

Why Lighthouse scores matter for your website

Kevin van Rooijen
· January 20, 2025 · 5 min read
Lighthouse Score Illustratie

Your website can look beautiful, but if it loads slowly, you lose visitors and drop in Google rankings. Lighthouse is the tool that measures how well your website performs. In this article, I explain what it is and why it matters.

What is Google Lighthouse?

Lighthouse is an open-source tool from Google that measures the quality of web pages. It analyzes your website in four important areas: Performance, Accessibility, Best Practices, and SEO.

Each category gets a score from 0 to 100. A score of 90+ is considered good, but at gooiwebsites we aim for 95+ across the board.

95+

Performance

How fast does your website load? This measures load time, interactivity, and visual stability.

100

Accessibility

Is your website accessible to everyone, including people with disabilities?

100

Best Practices

Does your website follow modern web standards and security guidelines?

100

SEO

Is your website optimized for search engines?

Why this matters

Google uses page speed as a ranking factor. A slow website literally means fewer visitors from Google. But it goes beyond SEO alone.

The numbers don't lie

  • • 53% of mobile visitors leave a site that takes longer than 3 seconds to load
  • • A 0.1 second improvement can increase conversions by 8%
  • • Google gives faster sites higher rankings

Visitors expect fast websites. If your page doesn't load within 3 seconds, chances are they'll click away. Every second of delay can cost you conversions.

How we score 95+

At gooiwebsites, we build every website with performance in mind. No WordPress, no heavy templates. This is how we do it:

Custom code, no bloat

Every website is hand-written. No unnecessary plugins or frameworks that slow down your site.

Optimized images

We use modern formats like WebP and lazy loading. Images only load when they come into view.

Critical CSS inline

The CSS needed for the initial render is directly in the HTML. No render-blocking resources.

Efficient hosting

Our servers are in Europe with CDN for fast delivery, wherever your visitors are.

Our Performance Guarantee

Every website we build scores at least 95 on Lighthouse Performance. That's not a target, but a guarantee.

Request a free analysis

Conclusion

A fast, high-scoring website is not a luxury but a necessity. It determines how Google sees you, how visitors experience you, and ultimately how many customers you attract. At gooiwebsites, performance is not an option, but standard.

Kevin van Rooijen

Founder of gooiwebsites.nl. Software developer with a passion for performance and user-friendly websites.

GitHub →

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