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Images are typically the single largest contributor to a page's total weight — and usually the easiest thing to fix.
Resize Before You Upload
Uploading a 4000px-wide photo to display at 800px wastes enormous bandwidth. Resize images to the actual dimensions they'll display at before uploading.
Choose the Right Format
JPEG works well for photos, PNG for images needing transparency, and modern formats like WebP offer significantly smaller file sizes than either at comparable visual quality.
Compress Without Visible Loss
Compression tools can often reduce file size by 50-80% with no perceptible quality difference — this is one of the highest-value, lowest-effort optimizations available.
Use Lazy Loading
Lazy loading defers loading images until a visitor actually scrolls near them, so a page with many images doesn't load all of them upfront, speeding up the initial page load.
Automate It
Most CMS platforms, including WordPress, have plugins that automatically compress and convert images on upload, removing the need to manually optimize every single image yourself.
