What is a good tool or site to use to performance

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What is a good tool or site to use to performance test a web page/site? I am trying to find a good baseline to detect how fast my page will load on one hosting provider vs another. I initially used http://www.freespeedtest.com/ but like to get opinions and links for others.

Answer 1

YSlow addin for Firefox is very good for helping you tune performance as is the NET tab of firebug.

Answer 2

For simple basic testing, use ab (ApacheBench) or httperf.

Pingdom is very useful for initial analysis of a particular page and measurement of site response. However, this is not a load test tool.

For that you have to go to the commercial tools. Here are some options:

1. Keynote
2. Gomez strong text
3. Loadrunner

I also checked out Load Impact recently and it seemed like a good basic tool.

Lastly, here's a fairly comprehensive list of options. http://www.softwareqatest.com/qatweb1.html#LOAD

Answer 3

I tried all of these tools and finally came across the "Net Export" plugin for Firebug. Now I use the "NET" tab of Firebug to trace my site performance and I can export it to .har format to view later as an archive. I can use the .har archives as baselines and then take more firebug "persist" traces and then compare them visually later.

Answer 4

I use Firefox with the FireBug and YSlow plugins installed.

Answer 5

I use this to measure a page's size and number of HTTP requests required: http://www.websiteoptimization.com/services/analyze/

I use Pingdom to measure my website's average response time.

Answer 6

Here are a few that I use:

http://www.linkvendor.com/seo-tools/speedtester.html (This one is pretty detailed)

http://www.vertain.com/?sst (Very fast and simple speed test)

http://www.iwebtool.com/speed_test (Another simple speed test)