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What is the best way to measure Client Side page load times?

I'm looking to monitor the end user experience of our website and link that with timing information already logged on the server side. My assumption is that this will require javascript to to capture time stamps at the start of request (window.onbeforeunload) and at the end of loading (window.onload). Basically this - "Measuring Web application response time: Meet the client"

  1. Is there a better approach?
  2. What kind of performance penalty should I be expecting (order of magnitude)?
  3. How good are the results?
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Kam Avatar asked Feb 13 '09 20:02

Kam


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1 Answers

There is also Boomerang from Yahoo.

Has some advanced features not existing in Jiffy and Episodes. Also support Navigation Timing API in browsers that support it (Chrome 6, IE 9)

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Yasei No Umi Avatar answered Sep 19 '22 03:09

Yasei No Umi