Google's Core Web Vitals prioritize Largest Contentful Paint (LCP). Keeping hero images around this size significantly boosts rankings.
The image has (like a sunset), as "banding" will occur at lower quality levels.
It is small enough to load almost instantly on 3G and 4G networks. 40 jpg
At settings lower than 40, you may see "ghosting" or "blockiness" around high-contrast edges.
The image contains , which will become blurry or illegible. Google's Core Web Vitals prioritize Largest Contentful Paint
While "40" is great for speed, it isn't for everyone. You should avoid heavy compression if: You are displaying or professional photography.
Every JPG contains "EXIF" data—the camera model, GPS coordinates, and date. This can add 5–10KB to a file. Use a tool like TinyJPG to strip this hidden weight. When to Avoid the "40" Setting It is small enough to load almost instantly
If you're working on a project, I can help you further if you tell me: Are you trying to of 40 images?
Reducing quality to 40 can often shrink a 2MB original photo down to less than 100KB, a 95% reduction in weight. Practical Applications of 40 JPGs Recommended Resolution Expected File Size Product Thumbnails 400 x 400 px ~15 - 25 KB Blog Inline Images 800 x 600 px ~35 - 50 KB Social Media Ads 1080 x 1080 px ~80 - 120 KB How to Achieve a "40 JPG" Without Losing Quality
Higher-end tools like the Squoosh App allow you to adjust "Chroma Subsampling." Setting this to reduces color data (which the human eye is less sensitive to) while keeping the luminance sharp, helping you hit that 40KB mark easily. 3. Strip Metadata