How much freedom should you give your child on the Web? Follow these guidelines from Caroline Knorr, senior parenting editor at Common Sense Media.

For Kids Under 5: Build a “white list.” Choose a handful of sites you’re comfortable with, and plug them into the device your child uses. As he gets older and needs greater access, simply add to the list.

For Kids 5 to 8: Use a kid-friendly browser. Disable the browser (Safari, Chrome, etc.) on your child’s device by going to Settings. Then replace it with a kid-friendly one that you download from the app store. Consider Mobicip (free), which lets her access only sites it identifies as safe. Mobicip offers three filtering levels—strict, moderate, and mature—and lets you block specific domains, website categories, and keywords.

For 9 and Up: Go with Google SafeSearch. Paired with the controls built into your operating system and browser, this search engine does an effective job of filtering explicit images and content. On a computer, go to the preferences section in Google, click “Turn on SafeSearch” and then “Lock SafeSearch.” On a mobile device, go to Google, click “Settings,” then select “Search settings” and choose “Filter explicit results.” Repeat for each browser.