This tutorial explains the steps required to block adult website in iOS 7 for iPad. If you want to restrict users from accessing adult oriented websites in iPad safari then you can follow the below mentioned steps.
Step 1: Tap the settings icon on the Home screen.
Step 2: Navigate to General Settings then to Restrictions option.
Enable “Restrictions” by setting a passcode (if Restrictions in not already enabled).
Also Read: Parental Controls on Android Play Store
Step 3: Scroll down to “ALLOWED CONTENT” then tap Websites.
In the Websites section, tap and mark the option with caption as “Limit Adult Content“.
Now if any one try to access porn websites using Safari browser then should see “Restricted Site” error message. This is quite useful parental control option which is available in iOS 7 for iPad.