Image optimisation

Performance

The process of reducing image file sizes without noticeably degrading quality, ensuring fast page loads. This involves choosing appropriate formats (WebP or AVIF for photos, SVG for icons), compressing files, serving responsive sizes based on viewport, and lazy loading images below the fold. Unoptimised images are the most common cause of slow websites. Fernside automates image optimisation during build to maintain performance without manual effort.

Why it matters

Understanding “Image optimisation” helps you speak the same language as our design and development team. If you need help applying it to your project, book a Fernside call.