What image formats are best for a website and why size matters

Choosing an image format is one of the most subtle yet critical tasks for a website. Even if the design looks perfect, large files increase page load times, degrade the user experience, and can negatively impact search rankings. Below are practical recommendations on which formats are generally best and why size and weight are important. 1) The best formats for a website: WebP and AVIF WebP is one of the most popular options: it's supported by most modern browsers and typically offers good compression without noticeable quality loss. AVIF often provides even more efficient compression (smaller file size with comparable quality), but compatibility is important: current browser versions support it better than before. If your goal is optimal performance, the most common strategy is to serve AVIF where it is supported, and WebP as a reliable fallback. 2) JPEG, PNG, and GIF – when appropriate JPEG is generally suitable for photographs and images with complex gradients: the form ... Read more »
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