How to Compress Images for Core Web Vitals (LCP), WordPress & Shopify
Pre-compressing images to WebP under 200KB before uploading to WordPress or Shopify typically improves Largest Contentful Paint (LCP) by 0.8 to 2.4 seconds on 4G mobile connections.
How Do Unoptimized Images Hurt Google Core Web Vitals and SEO Rankings?
Images account for over 55% of total page weight on the median website, and in 72% of mobile pages the Largest Contentful Paint (LCP) element is a hero banner or product photo.
Why Should You Compress Images Locally Before Uploading to WordPress?
Pre-optimizing images in your browser avoids shared hosting CPU spikes, inode bloat, and paid monthly plugin API quotas.
What Are the Ideal Image Specifications for Shopify Stores?
Keep homepage hero banners under 200 KB (1920×1080 WebP) and collection grid cards under 150 KB (1080×1080 WebP).
Frequently Asked Questions
What is the ideal image file size for SEO and fast page speed?
Aim to keep full-width hero banners under 200 KB and standard blog or product grid images under 100 KB.
Should I use loading="lazy" on my top hero banner image?
No. Never lazy-load your above-the-fold LCP hero image; use fetchpriority="high" instead.