Optimizing Images for Web: Quality vs Speed

Site speed is a critical ranking factor for Google. According to HTTP Archive, images often make up over 50% of a web page's total weight. Uploading raw images not only drains user data but also increases bounce rates.

Why Compress?

• Faster Loading: Smaller files mean faster data transfer and quicker First Contentful Paint.
• Lower Bandwidth Costs: If you pay for CDN or cloud storage, every byte counts.
• Better SEO: Search engines favor mobile-optimized, fast-loading pages.

Lossy vs Lossless

Many fear that compression ruins quality. However, modern algorithms (like WebP conversion or smart JPG compression) can reduce file size by 70% with virtually no visible difference. This is known as "visually lossless" compression.

Best Practices

1. Choose the Right Format: Use JPG or WebP for photos; PNG or SVG for icons and graphics.
2. Resize First: Never use CSS to shrink a 4000px image into a 300px slot. Resize dimensions first.
3. Use Tools: Always run assets through an Image Compressor before uploading.

Follow these rules to keep your site visually stunning without sacrificing performance.