P1Issue #37
Page insight : Effeciently Encode Image
❓ What does it mean?
❓ What does it mean?
“Efficiently Encode Images” is a Google PageSpeed Insights (PSI) recommendation that tells you your images are not properly compressed or optimized.
Unoptimized images can:
Be larger in file size than necessary.
Slow down page load times.
Negatively impact Core Web Vitals like LCP (Largest Contentful Paint).
🚨 Why is it important for SEO?
🚨 Why is it bad for SEO?
Slower Page Speed ⏳
Heavy images increase load time → poor user experience.
Lower Core Web Vitals Score 📉
Google uses Core Web Vitals as a ranking signal.
Higher Bounce Rate 👎
Visitors abandon slow-loading pages, reducing engagement.
Mobile Performance Issues 📱
Large images affect bandwidth-constrained mobile users the most.
✅ How to Fix It
✅ Best Practices
Use Next-Gen Formats → Convert images to WebP or AVIF.
Compress without quality loss → Use tools like TinyPNG, Squoosh, or ImageOptim.
Serve responsive images → Use srcset and sizes in HTML for different devices.
Lazy-load offscreen images → Load images only when visible (loading="lazy").
Use CDNs for images → Faster global delivery.
❌ Bad Example
📌 Example
❌ Bad (Unoptimized Image):
<img src="shoes-banner.jpg" alt="Shoes Banner" width="1200" height="600">
shoes-banner.jpg → 1.5 MB, JPEG, not compressed.
Slows down LCP and overall page speed.
✅ Good Example
✅ Good (Optimized Image):
<img
src="shoes-banner.webp"
alt="Shoes Banner"
width="1200"
height="600"
loading="lazy">
Converted to WebP → only 250 KB.
Added lazy loading for better performance.
⚡ Result
⚡ Result of Fixing
Reduced page weight → faster load times (saves 100s of ms).
Improved Core Web Vitals → better LCP & INP scores.
SEO Boost → Google rewards faster websites in SERPs.
Improved UX → Visitors stay longer and engage more.
❓ Frequently Asked Questions
What does 'Efficiently Encode Images' mean?
'Efficiently Encode Images' is a recommendation from Google PageSpeed Insights indicating that images on your site are not properly compressed or optimized.
Why is inefficient image encoding bad for SEO?
It can lead to slower page speed, lower Core Web Vitals scores, higher bounce rates, and mobile performance issues.
How can I fix inefficient image encoding?
You can fix it by using next-gen formats, compressing images without quality loss, serving responsive images, lazy-loading offscreen images, and using CDNs for faster delivery.
What are the benefits of efficiently encoding images?
Benefits include reduced page weight, improved Core Web Vitals, SEO boosts, and enhanced user experience.