Publishers, while I don't use a complex download solution like DLGuard (I don't want yet another database to worry about), I do use a name that is not easily guessable. Check out this fool I found in my logs trying to get into a new site of mine: http://www.endyourtinnitus.com/books http://www.endyourtinnitus.com/book http://www.endyourtinnitus.com/EndYourTinnitus.pdf http://www.endyourtinnitus.com/pdf google search site:endyourtinnitus.com http://www.endyourtinnitus.com/thanks.html http://www.endyourtinnitus.com/thankyou.html http://www.endyourtinnitus.com/downloads.html http://www.endyourtinnitus.com/download.html http://www.endyourtinnitus.com/download-page.html http://www.endyourtinnitus.com/endyourtinnitus.pdf http://www.endyourtinnitus.com/end-your-tinnitus.pdf But here's the most ridiculous part. This guy found my product through marketplace. I presume he just wanted to get a review copy. So the bozo could simply have emailed me and asked for a review copy! LOL!!! So don't make your download page anything easily guessable.
There are literally hundreds of different ways people can access to your thank you page without even typing those in Search engines.
There is a loophole where you can find them, I wont post it here and don't use it but have seen it a number of times on other forums. Thankfully the kind of person who pays money for a CB ebook is not the kind of person that would ever figure it out. A simply Google and some time could get anything that a product has to offer in the first place...