Free website performance testing tools

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Here you may find some website performance testing tools to help you make your web site blazing fast.

At the time of testing, all of these tools were free and did not require any web site testing software to be installed. You simply supply your URL and your website performance test is underway.

Tuning Varnish startup parameters

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thread_pool_add_delay=2
thread_pools = (Number of CPU cores)
thread_pool_min = (800 / Number of CPU cores)
thread_pool_max = 4000
timeout_linger = 50
workspace_session=262144
malloc,(yourmemory - 20%)G