Web Performance Load Tester™, Version 4 (WPLT4) is the only web testing tool smart enough to tell you how many users your website can handle. Use another tool, and you'll find yourself staring at charts for hours trying to figure it out—if you can even tell at all.

At the push of a button you can generate load from outside your network to test the entire application stack, including the firewall, or generate load from inside your test lab to concentrate on server performance by itself.

Our detailed, fully editable and configurable reports are available in HTML format. And WPLT4’s Application State Management™ feature analyzes your test case and configures dynamic variables for most websites automatically. Really.

Why Web Performance software?

As we developed Web Performance Load Tester™, we noticed the test case logic used the same rules over and over again. That’s when it occurred to us (as we were typing the same test case logic over and over again), that this was the perfect opportunity for automation.

Generate load from inside or outside the network

Whether you're generating load on your intranet using our instant load engines, or spinning up dozens of external load engines to test your customer-facing datacenter Load Tester can handle anything from small 100 concurrent user tests to generating 100,000 and more concurrent users.

No scripting languages to learn

Our automated record and configuration process means no complicated hand-coding, and no scripting languages to learn. Web Performance software will cut your load testing time by up to 80%.

No programming means faster testing…

Web Performance Load Tester automatically detects and configures the test cases for most situations. No muss. No fuss. And no reverse-engineering and hand-programming complicated test cases, or customizing code for complicated dynamic and state variables. All of which leaves you with more time to write new code.

..and faster testing means cheaper testing

Spending less time testing means spending less money testing. In fact, after switching to Web Performance from a popular open source package, one of our largest clients reported a five-fold increase in productivity. Many of our clients experience similar results.

Supported Technologies

WPLT3 works with your technology, on most platforms, including AJAX, Apache and homepage PHP, Java and J2EE, IIS, ASP and .NET, and Virtualization.