Is there a service that allows you to find out online whether there is advertising on the site?

Question

contextual advertising

Sometimes you have to monitor various resources according to certain criteria, you have to do everything "by hand", but I would like to make everything a little easier, are there services that allow you to find out about the presence of advertising on the site?

Answer 1

And the purpose of this?

Answer 2

spywords.ru to help you.