Introduction
When managing a Wordpress site, you may be inclined to upload images in the maximum quality just to be safe, but this can end up costing you speed, SEO and user experience. Most Wordpress sites become overloaded because of wrong image resolutions and oversized uploads as opposed to just too many images.
Recommended Image Resolutions
Desktop Images (Main Content)
Standard content width: 700–900px
Full-width sections: 1200–1600px
Hero images: max 1920px
Best practice:
Upload images at 1200px width for most use cases
Go up to 1600px only if truly full-width
Mobile Images
Most mobile screens: 360px – 430px wide
Retina displays may need 2x resolution
Best practice:
Serve images around 700–900px max for mobile
Let WordPress handle scaling with srcset
When You Do Need Higher Resolution
There are exceptions:
Use 1600–2000px images only if:
You have full-width modern layouts
Your design is very visual-heavy
You target large desktop screens
Steps: Uploading an Image
Resize the image to the necessary resolution as outlined above
Export at 70–80% quality (JPEG or WebP)
Upload to WordPress
Let WordPress handle responsive sizes
Summary
Your goal isn’t perfect image quality but to ensure your website is fast loading, with good quality visuals that ensure a smooth experience across devices for users. A slightly compressed 1200px image will outperform a 4000px “perfect” one. If you have any doubts over tthe correct size to use please contact the support team for further guidance.