How many users block google analytics?

Comparing Google Analytics with server logs

I've been running Google Analytics on my blog for around a year now, and every time I look at the data it provides, I trust it less and less. Frequently, the statistics it provides are misleading, if not flat-out wrong¹. And in addition to that, many people block google analytics, so I don't actually know how many views I'm getting.

A few days ago, I decided to compare my google analytics dashboard with my server logs² to see how many people actually block google analytics. Here's what I found:

Out of 1,253 users in my sample, 565 blocked google analytics (≈45%). The breakdown by browser was as follows:

Browser	% Blocking
Chrome	37%
Firefox	70%
Safari	39%

There were a few other browsers in the sample, but there wasn't enough data about them to be meaningful (There were <10 users of every other browser in my sample). I was expecting Firefox to be the largest, but it was a bit surprising to me that Safari and Chrome were approximately equal - I would have expected Chrome to be higher.

By operating system, it broke down as follows:

Operating System	% Blocking
Mac	48%
Windows	49%
Android	0%
iOS	17%
Linux (non-Android)	67%
ChromeOS	53%

There was also one BSD user in the sample, who blocked google analytics.

I think the only really surprising thing about this is how high the percentage on ChromeOS is - I would have expected it to be much lower. This also shows how bad the adblocking situation is on mobile right now - I'd imagine most users who block GA/ads on desktop would also want to on mobile, but can't just because it's so difficult to set up an adblocker on mobile.

It's worth noting that my blog is absolutely not average, since I attract a much more technical audience, but the numbers should be roughly transferable to other programming blogs.

If you're in NYC and want to meet up over lunch/coffee to chat about the future of technology, get in touch with me.

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