Hello DB friends, I have a Google adsense account. My question is will I use one script in multiple domains? Is there any limitation? in how many domains will i use that scripts like 10, 20, 30, 40, 50 domains?
Yes you use the same Adsense script for all your locations unless you want to track the a little better the you can make a few with different channels.
you can use the same script in as many sites as you want. There is a limit on the number of channels you can use ( I think it is, or was) 100 channels (including url channels).