Why no more adsense on http://www.digitalpoint.com/tools/adsense-sandbox/

http://www.digitalpoint.com/tools/adsense-sandbox/ has some adsense
but once it is in the search model, after i enter anything, adsense is gone.

did google banned the URL?

i see google is banning URLs not publishers. several of my major content URLs are banned because either they are lack of content or there are contents about deaths... i emailed them and they told me the computer did the job. so i have to split the big contents to smallers to let them have less deaths in it to show adsense.

but on your http://www.digitalpoint.com/tools/adsense-sandbox/ it does not look having any bad topics.