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Google AdSense Forum

How to measure amount of Adblock users

 2:21 pm on Jul 3, 2012 (gmt 0)

Is there a service that helps me convert Adblock users to whitelist my website or to measure the amount of Adblock users that visit my website?



 3:35 pm on Jul 3, 2012 (gmt 0)

Why would they want to whitelist your site ? They have installed an adblocker for a reason.


 11:10 pm on Jul 3, 2012 (gmt 0)

Once upon a time I slapped a script in my site that blocked anyone with javascript disabled or ads blocked from entering the site with instructions on how to correct the problem to gain access. Less than 1% ever continued into the site, wasn't worth the time or trouble to make them whitelist the site.

This is simple math and it depends on how accurate you want how much trouble it takes to get the information you seek. First, add up all the unique visitors from a raw log file report (AWStats or whatever) and compare to the same number reported by AdSense. Won't be exactly accurate because you can't be sure some of the visitors aren't bots.

Adblock visitors = raw log visitors - AdSense stats

If you want to get a more accurate count and eliminate most of the bots, install a bot blocking script (which you should do anyway) and then subtract all the junk the bot blocking script removed.

In that case it would be:

Adblock visitors = bot blocker allowed visitors - AdSense stats

In both above examples "Adblock visitors" will also count people with javascript disabled by default. Many people, myself included, tend to run NoScript when surfing the web to avoid being accidentally infected by malware which would also appear to the webmaster that Adblock was enabled.

To get slightly more accurate view of perhaps just users running some ad blocker, install a 3rd party javascript based tracking script like Google Analytics or Statcounter. You can usually assume anyone tracking in GA or SC at least has javascript enabled so you can then try:

AdBlock visitors = javascript stat tracking - AdSense stats

Last but not least, you cannot rely on javascript or even ads being displayed as proof it wasn't a bot because bots take screen shots and screen shots enabled all the technology used to render the screen.

Therefore, to get the most accurate stats you can, you need a bot blocker installed and a javascript based stats tracker. If you host your own javascript stats tracker it'll be even more accurate than tracker on GA or SC because of random network failures. Remember, just because the visitor can get to your site does NOT mean that they can, from their location, also connect with AdSense, Google Analytics, Stat Counter or anything else at that specific point in time. People tend to forget that network failure also plays a roll in stats discrepancies, usually more so late at night when ISPs do their upgrades than during the day.

A real simple way to see how many visitors are running javascript from raw log files is to count the unique IPs that load the javascript file. If you have a bot blocker installed that count will obviously be less and more accurate if the bot blocker has properly done it's job.


 12:26 am on Jul 4, 2012 (gmt 0)

And after all that you have done that Bill has mentioned... and even if you manage to allow them to be whitelisted, do you really think they will click on an advert ? I doubt it.


 1:10 am on Jul 4, 2012 (gmt 0)

They probably won't click but as I found out the numbers are so low it's quite irrelevant, at least it was at the time, which does set your mind at ease.

Then you know that ads aren't being clicked because either the ads suck, the site sucks, or a combination of both suck which at least has more potential to be fixed than unblocking blocked ads.


 2:46 am on Jul 4, 2012 (gmt 0)

Man, I sure wish there was a service that did all that bot blocking for you... Why, I'd *pay* for a service like that!


 1:13 pm on Jul 4, 2012 (gmt 0)

I was actually planning to build a service that does the measuring and converting. Though after your reply I'm having some doubts because it seems that only a very small amount of websites suffer from decreased revenue because of adblock users.

Anyhow thanks for your informative reply, Bill.

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