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Getting slowww results, Wordpress+W3TC
09-28-2011, 09:10 AM
Post: #2
RE: Getting slowww results, Wordpress+W3TC
Wow, those first byte times are insanely high. The page cache can't possibly be working when W3TC is turned on (I know a few people have seen similar issues). I believe it requires changing some directory permissions when you first install the plugin - do you know if you did that step?

You can enable the W3TC debugging which will dump a bunch of information to the page source (as a comment at the end of the page when you view source). The debug information can also be useful because it will show you the database queries and how long each one takes which is helpful for identifying a specific plugin that is making things slow.

If you'd like me to take a look and poke around feel free to ping me off-board (pmeenan@webpagetest.org) and I can take a quick look to see if it's something easy.

As far as the CDN goes, when it is enabled there are a lot of requests that aren't being served by the CDN (possibly coded directly into the template?) but there are also a fair number that are. To see the benefit from the CDN you need to do several runs to let the CDN cache the content first. That said, it looks like your web server is relatively close to the Dulles test location so the improvement would actually be the smallest there - you should see larger gains from California or Europe (though not worth looking at until the first byte times are fixed).
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RE: Getting slowww results, Wordpress+W3TC - pmeenan - 09-28-2011 09:10 AM

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