Proper image optimization is among the top strategies for accelerating page speed and enhancing SEO performance

Page delays drive visitors away and negatively impact your SEO standing, since speed is a core metric for search engines

The bulk of your page’s weight often comes from unoptimized images—tuning them delivers measurable gains in load speed

Your first step? Picking the ideal file type for each image

JPEG is ideal for photos and detailed visuals due to its efficient compression and color retention

For images with transparency, simple graphics, or limited color palettes, PNG is better

WebP delivers up to 30% smaller files than JPEG or PNG while preserving visual fidelity

Virtually all current browsers handle WebP—making conversion a no-brainer for performance gains

Never upload raw, uncompressed images—optimize them first

Numerous free utilities, both web-based and desktop, can shrink images with minimal perceptible loss

Tools like TinyPNG, Squoosh, or ImageOptim are easy to use and can strip unnecessary metadata and optimize encoding

Never post full-resolution photos from your device; scale them to fit your site’s maximum display size

Implement srcset to serve appropriately sized images based on screen resolution

Tailoring image sizes to device screens reduces load times and improves mobile UX

Also, 横浜市のSEO対策会社 consider using lazy loading, which delays loading images until they are about to appear in the user’s viewport

You don’t need JavaScript—just add loading=lazy to your img tags for instant performance gains

Don’t forget about alt text

Search engines rely on alt text to index visuals—proper descriptions improve chances of appearing in image results

Use natural language to describe the image—never cram in unrelated keywords

Deploy a CDN to distribute your images globally

CDNs store copies of your images on servers around the world, so users download them from a location closer to them

Geographic distance no longer slows down your image loading—CDNs bridge the gap

By taking these steps, you’ll not only make your site feel faster and more responsive but also improve your chances of ranking higher in search results

Even minor adjustments in how you handle images can yield substantial gains in UX and rankings