Mobile & speed

CDN

Example: A Brooklyn pizzeria's images load in under 200ms in San Diego because Cloudflare cached them at a Los Angeles edge — without a CDN, every byte travels the full 2,800 miles each time.

Content Delivery Network, "the edge"

A global network of servers — Cloudflare, Fastly, AWS CloudFront — that keep cached copies of your site close to every visitor in the world, so the page travels 30 miles instead of 3,000. Most good hosts wire one up for free.

Why it matters

A CDN is the single biggest "I don't have to think about this" speed upgrade available. Even if half your customers are in one city, the other half get the same fast site, and your origin server does dramatically less work.

Frequently asked

What is CDN?

CDN is a global network of servers — Cloudflare, Fastly, AWS CloudFront — that keep cached copies of your site close to every visitor in the world, so the page travels 30 miles instead of 3,000. Most good hosts wire one up for free.

Why does CDN matter for a restaurant?

A CDN is the single biggest "I don't have to think about this" speed upgrade available. Even if half your customers are in one city, the other half get the same fast site, and your origin server does dramatically less work.

Glossary

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