W3 Total Cache and site response time (as measured by Pingdom)

A few weeks ago, I botched the upgrade of the W3 Total Cache plugin on my site.  Since I had recently setup Pingdom website monitoring, I decided to leave it off for a bit and monitor the effects.  The results were pretty dramatic — site response time doubled immediately to over 1,200 ms without the caching plugin activated!  I turned the plugin back on yesterday, and site response time dropped back down to around 600 ms.  I can’t recommend this WordPress optimization plugin enough.  Check out this graph (click to enlarge).

W3 Total Cache and site response time (as measured by Pingdom)

Without Pingdom, I would have never realized the impact W3 Total Cache had on my site.  Which brings me to recommendation #2: sign-up for Pingdom.  If you only use 1 monitor, it’s totally free.

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