Image Optimisation for Websites (Faster Pages + Better SEO)
If your site feels slow, images are usually the #1 reason. Optimising images improves page speed, bounce rate, and SEO — especially on mobile.
Quick win: Crop extra background (reduces file size instantly).
Crop Image Tool
Reduce image size without losing quality
1) Use the right format
- JPG: photos (best size/quality balance)
- PNG: logos, icons, screenshots (can be large)
- HEIC/WebP/AVIF: can cause compatibility issues on uploads
2) Remove unused pixels first (crop)
Cropping reduces file size without destroying quality because you’re deleting unnecessary pixels (usually background).
Use: Crop Image Tool
3) Keep consistent dimensions
- Product images: keep same ratio across listings
- Blog images: avoid massive photos scaled down in CSS
4) Avoid common mistakes
- Uploading 4000px wide images when your site only displays 1200px
- Using PNG for large photos
- Letting platforms auto-compress badly
If uploads still fail:
Fix “file type not supported”
Image upload failed? Fix every common error