http://www.digitalpoint.com/tools/ad-network/?action=validate_site keeps telling me that "Ads are not found on http://www.seo-blog.org/" (clicked it 10 times, I'm sure it's enough) Look at the site, hit 'end' on your keyboard and you will find ads. Setup type is: PHP; I'm quite experienced with PHP so I'm 101% sure that it's setup correctly (after all, ads ARE there) -- why doesn't validator see them? P.S. I have the exact same problem with another site, but hopefully, if I resolve issue with http://www.seo-blog.org/ same will apply to it. SO PLEASE, SOMEONE ASSIST ME.
I see the ads, so it seems to be working properly. Is your site more than 1 page? The code is supposed to be on all pages of your site (which is why it is best to install it in the header or footer).
Of course it is: http://www.google.com/search?q=site:seo-blog.org&sa=Google+Search It's in the footer, site-widely.. but it keeps saying "Ads are not found on http://www.seo-blog.org/" so I assume it doesn't even look at other pages since it can't find ads on index one :/
It looks correct to me. It sounds silly, but you might want to try and hit validate a few more times. I have a friend with a large forum and it took him hitting validate about 15 or more times.
After investigating it deeply on the server side, I came to the reason why bot doesn't see ads - because of headers with redirection used on site index I am not the only one who does normal things like setting up .htaccess's DirectoryIndex or creating RewriteRules in it so I assume it would be ok to update bot to support such redirections and simply follow them, instead of quit immediately.