Quick Reference
Element Code: PE-009
Issue: Images are not optimally compressed
Impact: Larger file sizes than necessary, slower loading
Fix: Compress images using appropriate quality settings
Detection: Lighthouse, PageSpeed Insights, image analysis tools
What Is This Issue?
Images often retain higher quality than necessary for web display. Proper compression can reduce file sizes by 20-80% with negligible visual impact.
Why This Matters for Your Website
Images typically account for the largest portion of page weight. Efficient encoding has the highest impact on load time reduction.
How to Fix This Issue
- Use compression tools: TinyPNG, Squoosh, ImageOptim
- Set appropriate quality: 80-85% for JPEG is often sufficient
- Automate: Build pipeline compression
Tools for Detection
- Squoosh: Visual compression comparison
- ImageOptim: Batch image optimization
TL;DR (The Simple Version)
Your images are larger than they need to be. Compress them using tools like TinyPNG or Squoosh. You can often reduce size by 50% or more without visible quality loss.
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