reducing image file sizes without losing quality through techniques like choosing modern formats (WebP, AVIF), resizing dimensions, compressing data, and using lazy loading, all to boost page speed, improve user experience, and enhance SEO by making images load faster and look great on any device. Key steps include choosing the right format (JPEG for photos, PNG for transparency, WebP for best balance), compressing effectively (lossy for speed, lossless for detail), resizing to actual display size, adding descriptive alt text, and implementing lazy loading.
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