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Will VWO Code Create Extra Load on My Website?

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Minimal; just about 150–300 ms. We compress our scripts using gzip (or GNU zip) to reduce the size and heavily cache them at the server side (hello Memcache and APC) and client-side (browser caching of JavaScript). In addition, our services are hosted on SoftLayer servers for faster execution and for minimizing the load at your end.

We have smoothly tested and implemented real-time behavioral targeting, semantic targeting, and other advanced analytics technologies that exerted tremendous load on the servers. 

You can check our ping-time statistics here.


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