Speed checklist for ecommerce stores
Speed checks for ecommerce stores: what each one measures, how common the problem is and how to fix it on Shopify or WooCommerce.
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In this guide
- Largest Contentful Paint (LCP): how to get under 2.5 seconds
- Interaction to Next Paint (INP): what a good score is and how to improve it
- Cumulative Layout Shift (CLS): why your store jumps and how to stop it
- Slow product and collection pages: how to compare templates against the rest of your site
- Google mobile performance score: what it means and how to raise it
- Time to First Byte (TTFB): how fast your server should answer
- Page weight: how big should an ecommerce home page be?
- WebP and AVIF images: why modern formats make product pages faster
- Third-party scripts on ecommerce sites: how much is too much?
- Broken images, scripts and stylesheets: how to find failed requests