topr8 - 10:08 am on Nov 6, 2011 (gmt 0)
the only way any search engine COULD see if any of my customers have bought something on my site is if has some kind of toolbar installed on the client browser and it could work out which my payment pages were - or theoretically they could somehow work out if a customer added an item to their cart if the client looked at the view cart page....
i should think that this would be a SEVERE breach of privacy however and certainly in europe would most likely be illegal, it certainly is unethical.
>>Assuming a webmaster (just a hypothetical) does NOT use Google Analytics conversion code
personally my sales/conversion and various other data is the most valuable thing i have - i find it laughable that loads of webmasters give it away free to a third party.
[aside: i think having adsense on a page is giving away lots of data too, however at least you get paid for that, which i consider is a fair trade]