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GA accuracy

Google Analytics, accuracy

   
5:45 pm on Aug 20, 2008 (gmt 0)

5+ Year Member



I was told recently that Google analytics is only 65% accurate. Has anyone else heard this?
3:25 pm on Aug 21, 2008 (gmt 0)

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I can't say for sure, but so far their records of our conversion goals do not mesh with our in house stats. Could this be a security issue?
3:44 pm on Aug 21, 2008 (gmt 0)

WebmasterWorld Senior Member pageoneresults is a WebmasterWorld Top Contributor of All Time 10+ Year Member



I was told recently that Google analytics is only 65% accurate.

That number seems a bit low, what is the source of that information?

I'd venture to guess that it is closer to the 85-90% mark. And that will all be industry specific. People surfing with cookies off, javascript off, failed GA calls, etc. There are a plethora of factors to take into consideration when reviewing analytics. It surely ain't as easy as it used to be!

65% accuracy? Yikes! I tend to have a little more faith than that. :)

We1tzLux, Welcome to WebmasterWorld! You've been lurking... ;)

8:52 pm on Aug 21, 2008 (gmt 0)

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One of my business partners and I noticed a couple of years ago that we were seeing around 85-95% differences in the visitor stats when viewing the same account on screen from two locations at the same time in GA.

Since then I've only ever used it as an approximate guide and with important accounts often run a couple of stats packages at the same time, especially during critical advertising campaigns.

3:05 am on Aug 22, 2008 (gmt 0)

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I believe it was someone from clicktracks or omniture. Surprise surprise. I was told this from a rep from an online directory who just switched to clicktracks from GA.

I had a little more faith as well. I was surprised at the number.

6:42 am on Aug 22, 2008 (gmt 0)

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I use Google analitics and opentracker(for real time data) on my website abd i do see huge diffrence in vistor reports...
11:21 pm on Aug 24, 2008 (gmt 0)

WebmasterWorld Senior Member 5+ Year Member



I use Urchin (to analyze log files) along with Google Analytics. Usually, they pretty much agree with eachother, but they can both be off on some days, depending on who or what is hitting my sites. I find GA to be pretty accurate though, about as accurate as they get.

Funny that you mention that you may have heard that from someone at Clicktracks. I bought their hugely overpriced Optimizer, but stopped using it after a while because I had doubts about its accuracy. That, and the interface was just horror to work with.

5:42 am on Aug 26, 2008 (gmt 0)

5+ Year Member



65% is way too low.. maybe around 85+ something
i use google analytics and i can say that its not that accurate