Infrastructure

Infrastructure

Apr 6, 2025

Apr 6, 2025

CDN 101: Why a Global Content Delivery Network Matters

Explore the benefits of using a CDN for your site’s speed, scalability, and security—and how Jet integrates it seamlessly.

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Daniel Cooper

Lead Solutions Engineer

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Daniel Cooper

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Grace Lee

SEO Strategist

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Grace Lee

What is a CDN?

A Content Delivery Network (CDN) is a system of distributed servers that deliver content to users based on their geographic location. Instead of every visitor connecting to a single central server, a CDN ensures that your website’s images, scripts, and other assets are loaded from the server closest to them. This leads to dramatically faster load times, especially for global audiences, and helps your site stay available even during high-traffic events.

Why does your site need a CDN?

Imagine launching a new product and suddenly seeing a massive spike in visitors from around the globe. Without a CDN, your single server can quickly become overloaded, causing slowdowns or even outages. With a CDN, traffic is automatically balanced across many servers, ensuring a smooth and fast experience for everyone. Plus, CDNs add layers of security and redundancy that protect your site from attacks and unexpected failures. 

CDN benefits table

Benefit

Description

Speed

Content loads from the nearest server

Scalability

Handles traffic spikes effortlessly

Security

DDoS protection and SSL everywhere

Reliability

Redundant nodes keep your site online

Jet’s built-in CDN means our site is fast for visitors everywhere, all the time.

Example: CDN integration code

Jet CDN integration is automatic for all users, but if you ever need to manually serve a script or asset, it’s as easy as adding this snippet: 

// Jet CDN integration is automatic, but here's a manual example:
<script src="https://cdn.jet.com/your-site-assets.js"></script>

Get template