If you're a parent and you own an iPhone or iPad, odds are your children spend a great deal of time with them too. If you have teenagers in the house who have their own iPhone or iPads, there may be websites you want to completely block from their devices. Luckily, iOS 7 lets you easily do so. Here's how:
Launch the Settings app from the Home screen of your iPhone or iPad.
Tap on General.
Enable Restrictions and set a passcode if Restrictions aren't already enabled.
Under Allowed Content, tap on Websites.
Now tap on Limit Adult Content under the Allowed Websites section.
A new section will populate towards the bottom. Tap on Add a Website... under the Never Allow section.
Type in the full URL of the website you'd like to block and tap Done on the keyboard.
That's it. Just repeat this process for each site you'd like to block access to. Keep in mind that if certain websites have mobile sites, you may need to block them separately. For instance, to block CrackBerry completely, you would need to block www.crackberry.com, m.crackberry.com, and t.crackberry.com since they have specified sites for tablets, smartphones, and full blown browsers.
If you find a site not blocking after enter its URL, go to that site and look in the Address Bar in Safari to make sure you're blocking the correct URL. Copy it if you need to and paste it into restrictions.