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# Welcome to Cloudflare

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Zero Trust

## Developer Platform

The Cloudflare Developer Platform provides a serverless execution environment that allows you to create entirely new applications or augment existing ones without configuring or maintaining infrastructure.

Create API Tokens

If you are going to be using the Cloudflare API, you first need an API token to authenticate your requests.

View Workers Examples

Install the WARP Client

The Cloudflare WARP client allows individuals and organizations to have a faster, more secure, and more private experience online.

Set up a tunnel

Cloudflare Tunnel provides you with a secure way to connect your resources to Cloudflare without a publicly routable IP address.

## Zero Trust

Cloudflare Zero Trust replaces legacy security perimeters with our global network, making the Internet faster and safer for teams around the world.

## Other docs you might also like

Install an Origin CA certificate

Use Origin Certificate Authority (CA) certificates to encrypt traffic between Cloudflare and your origin web server and reduce origin bandwidth.

Change your nameservers

Make Cloudflare your primary DNS provider by updating your authoritative nameservers at your domain registrar.

SSL/TLS Encryption mode

Your domain's encryption mode controls how Cloudflare connects to your origin server and how SSL certificates at your origin will be validated.

Allow traffic from specific countries only

Block requests based on a list of allowed countries by configuring a custom rule in the Web Application Firewall (WAF).

**Community**

Share ideas, answers, code and compare notes with the Cloudflare community.

**Open source**

Cloudflare contributes to the open-source ecosystem in a variety of ways, including:

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