Google Analytics Opt Out (Block Tracking)

SakkTrakk (The Germanizah)—a small hakk to sakk the GA trakker

My colleague Christoffer Luthman at Mark Red has developed a small piece of code that makes it possible for website owners to offer a site-based opt-out function to visitors. It offers the possibility to block being tracked by Google Analytics on individual websites. The opt out does not work on a global level. A visitor has to opt out of being tracked by each website. The process for opting out is easy. There is simply a button to click on!

You may have seen the articles on sites like Econsultancy and TechCrunch about how Google Analytics may become banned in Germany. One of the reasons would be the lack of a possibility to opt out from being tracked without having to adjust cookie settings in the browser.

To offer a little bit of help to German website owners threatened with hefty fines we decided to make this little piece of code. It does not solve all of Google’s problems in Germany, but it’s one step in the right direction. I have written about the other points on my Swedish blog, but will leave that for now and simply focus on the opt out issue.

Test a SakkTrakk example

Download SakkTrakk now!

How does SakkTrakk work? Well, it places a cookie in the web browser for users who do not wish to be tracked. The setting in the cookie determines whether the Google Analytics tracker should be used or if the “mock object” gaOptOut.js should be used.

Implementation

Add “gaOptOut.js” within the head section of all pages:

Instead of using _getTracker(), use getOptOutTracker():

Caution: If the user deletes her cookies she’ll be tracked again until she activates SakkTrakk again. This script is provided “as is”, is free to use, and comes without any kind of warranty. Hey! it’s free, what did you expect?! You may alter the script to suit your needs. The script does currently not work if you use asynchronous tracking.

Post in German: Opt out für Google Analytics

PS. My apologies for the name of the product. My bad. I was simply inspired by the use of double k’s in German web analytics tool names. You should also know that Mark Red is a big fan of Google Analytics, but we respect privacy.