All of the engines have the potential to take some action on your cloaked page, ranging from dropping the page from their index to banning the domain.
Do it right, and for now you will be fine on all of them.
The following are just guidelines I follow and not directed to anyone in particular. For anyone interested here goes ...
Doing it right:
=Do not cloak many pages to one visitor page,
keep the relationship one to one as much as possible. The only exception is where you can have a few pages that remain highly relevant to the target page.
=Do not be tempted to use anyone else's code, ever.
= Do match title and description of your cloaked and visitor page, including the first sentence or so when feeding engines that do not use meta description. This avoids the snoopers who like to climb the rankings by removing their competition.
= Do link your cloaked pages as if they were real pages (which they are), and take advantage of theming, link popularity, etc.
= Be courteous to those you link to. If you show a link to a site on your visitor page(s), give them a link on your cloaked page too.
= Do not use links on your cloaked page(s) that do not exist on your human page(s). This will make your page show up for searches of that domain and they'll wonder why. Plus it's not nice.
= Always let you clients know the guidelines you will follow if cloaking is involved, be careful with any engine targetted pages they supply.
= Cloaking is not a shortcut, it is a longcut, use it to compensate for search engine spidering deficiencies not for quick hits, and be prepared to do more work not less.
= Relax, you'll have the odd visit from a spider not in your list and it will get your visitor page. Follow the above guidelines and take it in stride.
= Be your own experiment, you have no way of knowing what anyone else did that got dropped, banned, etc, use your own results as a guide.
= Stay cool, keep your chin up, and have some fun, it used to be fun didn't it??
[marker Air cloaking faq]
Edited by: Air