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Inaccuracies with unique visitors

saracowie 02-12-15

Inaccuracies with unique visitors

We are seeing a large discrepancy in the number of unique visitors tested for our first experiment vs. the numbers we are seeing in Google Analytics.  We did opt to make the test go to everyone so that it's not campaign specific.
 
Could someone please help?
tomfuertes 02-13-15
 

Re: Inaccuracies with unique visitors

Hey Sara! This help article contains most of the contingencies.

https://help.optimizely.com/hc/en-us/articles/200904580-Frequently-Asked-Questions#analytics_results

With our clients, we've usually found the total numbers to align rather well, the discrepancy is usually based around the launch, configuration, or link between ga and optimizely. Do you have a URL you can provide? Happy to help debug further!
- Tom Fuertes | CTO @ CROmetrics