5 Image Optimization Tips to Improve Load Time of Your WordPress Site
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Images are typically the largest contributor to page weight on WordPress sites. Key optimization steps include resizing images before upload to match your theme's content width, choosing modern formats like WebP (25-34% smaller than JPEG), and using a compression plugin such as ShortPixel to bulk-process existing media libraries with lossy/lossless options and automatic EXIF stripping. A CDN reduces delivery latency by serving assets from geographically closer servers. WordPress 5.5+ enables lazy loading by default, but the hero/LCP image should be excluded — WordPress 5.9+ handles this for the first image in source order, though custom themes may need manual verification. Finally, descriptive alt text improves both SEO and accessibility and should be added consistently for every meaningful image.
Table of contents
1. Resize Images Before You Upload Them2. Use the Right Format for the Job3. Use a Plugin to Compress Your Media Library4. Use a CDN to Deliver Images Faster5. Enable Lazy Loading6. Write Descriptive Alt Text for Every ImageWhere to Go From HereSort: