CloudFlare: WebSockets for everyone

In addition to CloudFlare’s core Performance and Security capabilities, CloudFlare’s network service also includes Websockets support for all customers.

CloudFlare will accelerate your WebSockets app with a large global content delivery network, enhance reliability with DDoS protection and increase security with our IP and Web application firewall. Check out our plans page for more information.

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What is WebSockets?

WebSockets represents a giant leap for real-time web applications with features like social feeds, multimedia chat, collaborative editing, multi-player gaming, stock updates, and more.

Standardized by the IETF as RFC 6455 in 2011, WebSockets is a protocol that provides full-duplex, bi-directional communications over a single TCP port.

Because WebSockets creates a single connection and doesn’t need multiple HTTP headers, WebSockets can provide anywhere from 500:1 to a 1000:1 reduction in unnecessary HTTP header traffic compared to HTTP polling solutions.

The server no longer needs to wait for a request to come back before it sends new data; it can simply push the data to the client the moment it has new information. Tests have shown a 3:1 reduction in latency compared to polling solutions.

For more technical information on the WebSockets, you can read up on the HTML5 Web Sockets Specification.

Protecting your mission critical real-time WebSocket applications

The ability to protect and accelerate WebSockets has been one of the most requested features from our customers.


CloudFlare offers real-time protection against attacks vulnerabilities including cross site scripting attacks, SQL injections, comment spam, excessive bot crawling, to email harvesters, and more. Learn more ›


We’ve built the next-generation global content delivery network that distributes your content around the world. Our proprietary software allows us to process millions of requests per second efficiently. Learn more ›

DDoS Protection

Modern denial-of-service attacks present complex and overwhelming security challenges. CloudFlare is provisioned at the network edge matching the sophistication and scale of such threats. Learn more ›

CloudFlare makes more than 2,000,000 web properties faster and safer. Join

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