AdSense, YPN and Chitika all use JavaScript to serve their ads. Does anyone know what percentage of internet users disable JavaScript? Is there any way I can find out how many of my visitors do not have JavaScript enabled? Thanks for your help!
Thanks Cricket! It looks like up to 10% of people have JavaScript turned off - that's a lot of impressions with no ads!
5% of my visitors don't have javascript support. Not sure if that includes bots though, that would explain quite a few percent.
Very interesting blinxdk ... that means 5% of your visitors see no AdSense / Chitika! I'm going to go through all my sites and add a couple of lines of code so that if JavaScript is turned off they will be served something. Here's what I'm using ... just plonk it in after your ad unit: <noscript> <a href="http://www.someaffiliatescheme.com/?id=1">Bla bla bla</a> </noscript> This doesn't alter any code from AdSense / YPN or Chitika so is fully complient. Using it along with alternate ads when PSAs display should help revenue.
Definitely doesn't, bots don't load javascript. This is why log based analytics often show way more uniques than tag (javascript) based ones do.
Guys you also have to factor in those firefox users who have the popular extension adblock, which I am sure you can all guess its function. It works quite well and did actually have me wondering for a while once why ads werent showing up