Shopify

Shopify CDN

Shopify's CDN (Content Delivery Network) automatically serves your store's images, JavaScript, and CSS from servers geographically close to your visitors. All Shopify stores use the CDN automatically — you don't need to configure it. Images hosted on Shopify are served from Shopify's globally distributed edge servers.

Why It Matters for Shopify Stores

Shopify's CDN is one of the platform's biggest performance advantages. Images uploaded to Shopify are automatically served from the closest server to each visitor, reducing latency significantly. However, the CDN only helps for assets hosted on Shopify. Third-party app scripts, fonts from external sources, and resources loaded from other domains bypass the CDN and introduce additional round-trip latency. Keeping as many assets as possible on Shopify's infrastructure maximizes CDN benefit.

How to Check Your Store

In Chrome DevTools Network tab, check the domain from which assets load. Shopify-hosted assets come from cdn.shopify.com. Third-party scripts from external domains don't benefit from Shopify's CDN.

Use the free shopify speed test tool

How to Fix It

Minimize third-party scripts. Where possible, self-host fonts and icons. Any image or asset uploaded directly to Shopify automatically benefits from CDN delivery.

Related Terms

TTFB (Time to First Byte)

Core Web Vitals

Time to First Byte is the time between a user's browser making an HTTP request and receiving the first byte of data from the server.

LCP (Largest Contentful Paint)

Core Web Vitals

Largest Contentful Paint measures how long it takes for the largest visible content element on a page — usually a hero image or headline — to finish loading.

Edge Caching

Performance

Edge caching stores copies of your store's pages, images, and assets at CDN edge servers around the world — so future requests are served from the closest edge location rather than your origin server.

Image Optimization

Performance

Image optimization is the process of reducing image file size without significantly reducing visual quality, while ensuring images are the correct format (WebP), dimensions, and compression for their use case.

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