why my adsense ads don't show sometimes

I am in China. and my server works fine. but Sometimes when i refresh webpage, the Adsense ads won't show up. but after a while, i refresh again, it shows. It's been many times now, I really have no idea about that. Are you have the same problem as I do?

 

Are you using more than 3 ads per page ?
if this is a case, then please limit ad count upto 3

 

Also try upping keyword density. It's odd though that it's not showing PSA ads in the absence of anything else. I'd be tempted to check the code before and after the adsense.
Dickie

 

3 adds show on 1 page

 

Don't keep on refreshing your own pages unnecessarily for viewing ads. You are creating invalid impressions. Use preview feature of browsers to have a look at your website.

Also check the no. of ads and see if there is enough content on pages.

 

maybe you use very specific keyword eg. mesothelioma...you can't see any mesohelioma ads in most asian country.

 

Either there are no ads to show at the moment for your category or it is something with your script. I suggest calling adwords support.

 

I had the same problem , and found that if I disable these two add-ons and cleared the browser cache the ads are showing again

 

it happens on occasions, especially if they are new ad units. Good luck

 

Yea jst clear ur cache nd they ll show up!!