Build web apps that are truly real-time
Only with WebSync, the Lamborghini of .NET

Today's users demand more than ever. Enhance your applications using WebSync, the world's most powerful comet (reverse Ajax, HTTP Push) server for the .NET platform.

Stream performance data with WebSync!
WebSync Speed
Instant and scalable, for any platform Comet for the Cloud
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Simple and powerful, for .NET and IIS Comet for .NET
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Why WebSync?

Fast

Deliver over *one hundred thousand* updates per second with every instance of WebSync.

Low Cost

Use your existing hardware or let us host the servers for you - only pay for what you need.

Easy

Right out of the box, it just works; no complicated setup procedures.

Compatible

Securely stream real-time data to just about any computer or mobile phone.

IE6+, FF2+, Chrome, Safari, Opera, Android, and many other browsers

What is WebSync?

Push data to web clients with zero configuration.

WebSync is a highly scalable HTTP Comet/Reverse Ajax server built for the Microsoft stack (ASP.NET/IIS) using the Bayeux protocol.

WebSync allow you to push live data to a web browser or any other compatible client without requiring any plugins, security changes, or dedicated servers.

WebSync leverages the power and ubiquity of IIS to allow easy integration into existing applications with a simple learning curve.

WebSync is currently used for chat, streaming stock data, live auctions, real-time monitoring, news updates, and many other applications.

Bypass firewalls and deliver tends of thousands of messages per second.

WebSync is the only production capable Comet/Reverse Ajax server for those of us using the Microsoft framework (ASP.NET/IIS).

Unlike other Comet/Reverse Ajax solutions, WebSync does not require any additional servers, different ports, or fancy configuration. WebSync works directly with IIS (or the development server shipped with Visual Studio), and can therefore be easily added to any ASP.NET project with little more than a couple web.config entries. No need to host additional servers, mess with extended installations or configuration, or figure out what security restrictions are in place - WebSync "just works".

In addition to being made for Microsoft's platform, and being very simple to use and integrate, WebSync has incredible performance. In our testing, we took a old Acer desktop with 3Gig of RAM and had over 30,000 simultaneous users and over 100,000 messages being sent per second. Now those are some numbers you can work with!

Learn more...

Don't just take
our word for it...

"I have to say WebSync is probably the best thing to come to the web in as far back as I can remember."
                    John T. Nielsen

"I can't begin to tell you how much easier and more effective WebSync is than Lightstreamer."
                    Vinh Tran

What Is Comet?

Push data to your clients instantly, as events occur

Traditionally, HTTP requests communicate with web servers synchronously.

Traditional HTTP

Traditional HTTP

With Comet (a.k.a Reverse Ajax, HTTP Push, etc), a connection is established and maintained with the server, allowing full duplex communication, meaning the server can push events out to the client in real-time.

Comet Reverse Ajax

With Comet/Reverse Ajax

WebSync uses a standards-based publish/subscribe methodology to send data to connected clients; these clients can be .NET clients, Silverlight clients, web browsers, or any other client that implements the standard protocol used with WebSync.

The data sent through WebSync is JSON (JavaScript Object Notation), a well known and highly cross-platform, cross-language standard.