How to Master Cloudflare Live Demos: A Beginner’s Guide

By Azon Vault On May 4, 2026

Introduction

Ever wondered how to showcase a website or app in real‑time without sharing source files? Cloudflare Live Demos does exactly that—letting you stream an interactive version of your project directly from the edge. In this guide we’ll walk through what Live Demos are, why they matter for developers and marketers, and how to set one up step by step.

What Are Cloudflare Live Demos?

Live Demos are a feature of Cloudflare Pages that let you run a live instance of your static site or Jamstack app on Cloudflare’s global network. The demo is isolated, secure, and instantly accessible via a unique URL. Visitors can interact with the site just as they would with a production deployment, while you maintain control over the underlying code.

Core Benefits

Instant performance: Powered by Cloudflare’s edge, the demo loads in milliseconds worldwide.
No extra hosting costs: Demos run on the same infrastructure as your Pages site.
Secure sandbox: Each demo runs in its own container, preventing cross‑site contamination.
Easy sharing: Share a short URL with clients, stakeholders, or on social media.

How Live Demos Work – A Simple Flow

Push code to a Git branch (e.g., demo‑feature).
Cloudflare Pages detects the branch and builds a preview.
When you enable the Live Demo toggle, a unique demo.pages.dev URL is generated.
The preview is served from Cloudflare’s edge, with automatic SSL and caching.

Step‑by‑Step Setup

1. Connect Your Repository

Log in to the Cloudflare dashboard, navigate to Pages, and click Connect to Git. Choose GitHub, GitLab, or Bitbucket and authorize the integration.

2. Create a New Project

Select the repository containing your static site. In the build settings, specify the framework (e.g., Next.js, Hugo, Vite) and the build output directory (usually dist or _site).

3. Enable Preview Branches

Under Settings → Deployments, turn on Preview Deployments. This tells Cloudflare to build a preview for every new branch or pull request.

4. Activate a Live Demo

After your preview finishes building, open the deployment details. Click the Live Demo toggle. Cloudflare will allocate a sub‑domain like demo‑myfeature.pages.dev. The demo is live immediately.

5. Customize Demo Access (Optional)

If you need password protection or token‑based access, use Pages Access Control to restrict the demo to authorized users.

Best Practices for Effective Demos

Keep it lightweight: Remove heavy analytics or third‑party scripts that could skew performance metrics.
Use environment variables: Store API keys or endpoints as CF_PAGES_* variables so the demo never exposes secrets.
Document the URL: Add the demo link to pull‑request descriptions for reviewers.
Set expiry: Demos auto‑expire after 7 days of inactivity, but you can manually delete them to keep the workspace tidy.

Common FAQ

Is a Live Demo the same as a production deployment?

No. A demo runs in an isolated environment and is intended for testing or sharing. Production sites have custom domains, advanced caching rules, and often additional security settings.

Can I run server‑side code in a Live Demo?

Live Demos support serverless functions (via Cloudflare Workers) that are part of your Pages project. They execute on the edge just like in production.

How long does a demo stay active?

The URL remains accessible as long as the branch exists and receives traffic. Inactivity for 30 days automatically disables the demo.

Do Live Demos affect my Pages quotas?

Build minutes and bandwidth are counted against the same quota as your main site, but typical demo usage is minimal.

Can I embed a Live Demo in a blog post?

Yes—embed the demo URL in an iframe or use a link button. Just ensure the surrounding page permits iframes from *.pages.dev.

Conclusion

Cloudflare Live Demos turn every feature branch into an instantly shareable, high‑performance preview. By following the steps above and applying best‑practice tweaks, you’ll impress stakeholders, speed up feedback loops, and keep your development workflow clean.

Ready to Try It?

Start a new branch, enable a Live Demo, and watch your project go live in seconds. Need help? Contact our support team for a quick walkthrough.