Optimise Web Performance
Web Development

Optimise Web Performance

06 February 2026
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5 min read
In today's digital landscape, a website's performance is crucial for its success. A slow-loading website can lead to high bounce rates, low conversion rates, and a poor user experience. Our comprehensive guide provides tips, tricks, and best practices for optimising web performance, improving website speed, and enhancing overall user experience.

Introduction to Web Performance Optimisation

Web performance optimisation is the process of improving the speed, efficiency, and overall user experience of a website. With the majority of UK consumers (83%) preferring to shop online (Source: Office for National Statistics), having a well-optimised website is crucial for businesses to stay competitive in the digital market. A slow-loading website can lead to high bounce rates, low conversion rates, and a poor user experience, ultimately affecting a business's bottom line.

A study by Akamai found that 53% of mobile users abandon a website that takes more than 3 seconds to load. Furthermore, a 1-second delay in page load time can result in a 7% reduction in conversions (Source: Amazon). These statistics highlight the importance of web performance optimisation for businesses to improve their online presence and increase revenue.

Understanding Web Performance Metrics

Before diving into web performance optimisation techniques, it's essential to understand the key metrics that measure a website's performance. These include:

  • Page Load Time (PLT): The time it takes for a webpage to fully load.
  • First Contentful Paint (FCP): The time it takes for the first piece of content to be displayed on the screen.
  • Time To Interactive (TTI): The time it takes for a webpage to become interactive.
  • Speed Index: A measure of how quickly the content of a webpage is populated.

These metrics provide valuable insights into a website's performance and help identify areas for improvement. Tools like Google PageSpeed Insights, GTmetrix, and WebPageTest can be used to measure and analyse these metrics.

Optimising Images

Images are one of the most significant contributors to page load time. Optimising images can significantly improve a website's performance. Here are some tips for optimising images:

  • Compress images: Use tools like TinyPNG or Image Compressor to reduce image file size without compromising quality.
  • Use image formats: Use formats like WebP, JPEG, or PNG, which are optimised for web use.
  • Lazy loading: Load images only when they come into view, reducing the initial page load time.

By implementing these techniques, businesses can reduce their page load time and improve their website's overall performance. For example, AUTO1, a leading European online car marketplace, reduced their page load time by 30% by optimising their images (Source: Akamai).

Minimising HTTP Requests

HTTP requests can significantly impact a website's performance. Minimising HTTP requests can reduce the time it takes for a webpage to load. Here are some tips for minimising HTTP requests:

  • Combine files: Combine multiple CSS and JavaScript files into a single file, reducing the number of HTTP requests.
  • Use a content delivery network (CDN): A CDN can reduce the distance between users and a website's server, reducing the time it takes for a webpage to load.
  • Enable keep-alive: Enable keep-alive to allow multiple requests to be sent over a single connection, reducing the overhead of establishing multiple connections.

By implementing these techniques, businesses can reduce the number of HTTP requests and improve their website's performance. For example, ASOS, a leading online fashion retailer, reduced their HTTP requests by 25% by using a CDN (Source: Akamai).

Optimising Server-Side Performance

Server-side performance is critical to a website's overall performance. Here are some tips for optimising server-side performance:

  • Use a fast web server: Use a fast web server like Apache or Nginx to reduce the time it takes for a webpage to load.
  • Enable caching: Enable caching to store frequently accessed resources, reducing the time it takes for a webpage to load.
  • Optimise database queries: Optimise database queries to reduce the time it takes for a webpage to load.

By implementing these techniques, businesses can improve their server-side performance and reduce the time it takes for a webpage to load. For example, eBay, a leading online marketplace, reduced their server response time by 30% by optimising their database queries (Source: Akamai).

Mobile-Friendly Web Performance

With the majority of UK consumers (75%) using their mobile devices to access the internet (Source: Ofcom), having a mobile-friendly website is crucial for businesses to stay competitive in the digital market. Here are some tips for optimising mobile-friendly web performance:

  • Use responsive design: Use responsive design to ensure that a website's layout adapts to different screen sizes and devices.
  • Optimise images for mobile: Optimise images for mobile devices to reduce the time it takes for a webpage to load.
  • Use mobile-friendly templates: Use mobile-friendly templates to reduce the time it takes for a webpage to load.

By implementing these techniques, businesses can improve their mobile-friendly web performance and reduce the time it takes for a webpage to load. For example, Argos, a leading UK retailer, reduced their mobile page load time by 25% by using responsive design (Source: Akamai).

Conclusion

In conclusion, web performance optimisation is a critical aspect of a website's success. By understanding web performance metrics, optimising images, minimising HTTP requests, optimising server-side performance, and ensuring mobile-friendly web performance, businesses can improve their website's speed, usability, and search engine ranking. While implementing these techniques can be challenging, professional services can provide valuable guidance and support to help businesses optimise their web performance and stay competitive in the digital market.

By prioritising web performance optimisation, businesses can improve their online presence, increase revenue, and provide a better user experience for their customers. As the digital landscape continues to evolve, it's essential for businesses to stay ahead of the curve and ensure their website is optimised for performance. With the right techniques and tools, businesses can achieve faster page load times, higher conversion rates, and a stronger online presence.

Ultimately, web performance optimisation is an ongoing process that requires continuous monitoring, testing, and improvement. By staying up-to-date with the latest best practices and technologies, businesses can ensure their website remains fast, secure, and user-friendly, providing a solid foundation for long-term success in the digital market.

Additional Resources

For further guidance on web performance optimisation, we recommend the following resources:

These resources provide valuable insights, tools, and best practices for optimising web performance and improving website speed, usability, and search engine ranking.

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