The iPad's Safari browser allows you to enable or disable cookies and turn on private browsing. However, these settings aren't available within the Safari browser itself. Apple keeps all of custom options for most of the default apps (Safari, Notes, Photos, Music, etc.) in the iPad settings, which is where you need to go to enable cookies or turn on private browsing?
First, go to the iPad settings by tapping the settings icon. This icon looks like gears turning. (Get help getting into the iPad's settings.)
Next, scroll down the left-side window until you locate Safari. When you tap Safari, the safari's settings will show up in the main window.
To enable/disable cookies, simply locate the Privacy block and change the Accept Cookies option. Your choices are "Never", "Always" and "From Visited". The "From Visited" choice is the best for enabling cookies while keeping a moderate level of security by ensuring you have actually visited the website associated with the cookie. If you want the most secure experience, choosing "Never" will turn off cookies completely. Remember: Many websites are designed to work with cookies and may not work correctly with cookies turned off.
To turn on/off private browsing, move the tab either to "on" or "off". Private browsing does three things: (1) the iPad will no longer keep track of the websites you visit or the searches you perform in the search bar, (2) the iPad will block certain types of 'tracking' cookies from external websites and (3) the border of the Safari app will turn black to indicate you are in private mode.