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Compress Images for Google PageSpeed: Boost Your Score to 90+ (2026)

Google PageSpeed Insights flags unoptimized images as one of the top performance issues on most websites. Images typically account for 60-80% of a webpage's total size. Compressing them properly can lift your PageSpeed score from 50 to 90+ — which directly improves your SEO rankings.

Why Image Compression Matters for PageSpeed

Google uses Core Web Vitals as a ranking signal. The Largest Contentful Paint (LCP) metric — how fast the main content loads — is heavily influenced by image size. An uncompressed hero image at 5MB can add 3+ seconds to your LCP. Compress it to 200KB, and that drops to under 1 second.

How Much Should You Compress?

Image UseTarget SizeFormat
Hero / banner images100-250 KBWebP or JPG
Product photos50-150 KBWebP or JPG
Blog post images50-100 KBWebP
Thumbnails5-20 KBWebP
Logo / icons5-15 KBSVG or PNG

Step-by-Step: Compress Images for PageSpeed

  1. Run your site through PageSpeed Insights — note which images are flagged
  2. Download those images and compress them at Compress2PNG.com — set quality to 80% for JPG/WebP, use "Auto" to keep original format
  3. Check the before/after slider to ensure quality is still acceptable
  4. Replace the original images on your site with the compressed versions
  5. Re-run PageSpeed — you should see a 20-40 point improvement

Using Compress2PNG.com is ideal because all compression happens in your browser — no need to upload client or proprietary images to a third party. Try it free now.