dynaTrace AJAX Edition is a free tool for diagnosing & preventing Ajax performance issues.

The tool runs on IE & measures the performance of your AJAX application as real users are feeling it.

dynaTrace Ajax

It traces & analyzes AJAX calls through their entire round trip (DOM event, JavaScript, HTTP request, avaScript callback) and displays network traffic, CPU load, execution times & more.

dynaTrace AJAX also records every session for future offline analysis.

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