Optimising Images for Web in WordPress
Large images can slow down your website. Optimising ensures they load quickly while still looking sharp.
Step 1 – Resize Images Before Uploading
Use an image editor (Photoshop, Canva, or free tools like TinyPNG) to size your images appropriately:
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Full-width banners: around 1920px wide.
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Content images: 800–1200px wide.
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Thumbnails: 300–600px wide.

Step 2 – Save in the Right Format
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JPG → best for photos.
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PNG → best for graphics with transparency.
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WebP → modern format, smaller file size, good quality.

Step 3 – Compress Images
Use an online tool (like TinyPNG, Squoosh, or ShortPixel) to compress your image without noticeable quality loss.

Step 4 – Upload to the Media Library
Go to Media → Add New in WordPress and upload the optimised image.

Step 5 – Check File Size
After uploading, check that file sizes are reasonable:
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Aim for under 200KB for content images.
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Keep banners and large images under 500KB if possible.

Additional Notes
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Divi supports responsive images, so WordPress will generate different sizes automatically.
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Use caching (e.g., WP Rocket) to improve performance further.
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Always add alt text for SEO and accessibility.