You’re in the kitchen, and your child is in the next room, scrolling quietly on their phone. You suddenly wonder what they might reach in just a few taps – and whether they could stumble onto something violent, sexual, or simply not meant for kids. In that moment, you don’t need jargon; you need a simple way to block harmful websites so their phone can’t open those pages in the first place.
By turning on built-in parental controls and using website‑blocking tools on your child’s phone, you can stop harmful sites from loading and greatly reduce the chances they’ll encounter upsetting or age‑inappropriate content.
Who this guide is for:
This guide is for parents, caregivers, and educators who want a clear, easy way to block harmful websites on children’s phones.
Key takeaways:
- You can block harmful websites using settings already available on most phones, plus optional family safety apps.
- Technical controls work best when paired with clear family rules and regular conversations about what children might see online.
- Checking and updating these protections over time keeps them aligned with your child’s age and maturity.
Can you block harmful websites on a child’s phone?
Yes. There are in-built tools on both the iPhone and Android which allow you to block “harmful” websites. These are apps that help to block pornography and restrict internet access to a list of approved websites. Both Apple‘s Screen Time and Google’s Family Link are able to do this without the need for an additional app.
Blocking the apps alone, however, will not resolve the issue. A child may still access inappropriate content via a browser, search engine or a shared link. Luckily, Website filtering fills this void. It’s most effective when used in conjunction with account-level restrictions. Simultaneously you’ll have to block purchases, downloads and browser installations. This prevents a child from just going around the filter.
When not to use website blocking alone
Every restriction and parental control tool has a limit. Here is when website blocking is not enough on its own:
- If the child has already mastered some workarounds. These include using a different browser or private or incognito mode, or visiting proxy sites that don’t trigger the filter.
- If the actual problem is the behavior, rather than access. Issues such as oversharing, unsafe messaging and risky interactions on social sites demand conversation, not a web filter.
- Some families prefer a more transparent approach to privacy than using a restrictive filter. Trust is more important than monitoring.
A study from Journal of Child and Family Studies in 2023, titled “Parental Monitoring of Early Adolescent Social Technology Use in the US: A Mixed-Method Study”, states that restrictive parental monitoring (rules and limits on time or content) of adolescents’ digital media use is positively associated with problematic internet use, whereas active monitoring (discussing themes, character choices, and messages) is not associated with problematic use.
What kinds of harmful websites parents usually want to block
Most requests for “parental controls” fall into a few categories:
- Adult or sexually explicit material or content.
- An anonymous site to meet strangers and chat rooms.
- Scam pages and phishing pages that are there to steal a user’s information.
- Content that is extreme and self-destructive like self-harm, violent or other extreme categories.
- Websites that promote “oversharing,” secretive messages, or unsafe interactions with strangers.
UNICEF’s guidance on child online safety points out that perpetrators often work to earn a child’s trust, or a caregiver’s trust, first. Only after building that trust do they push for private image or video sharing. That’s why stranger-contact sites deserve as much attention as explicit content when you’re deciding what to block.
iPhone and iPad settings that can help
There are website restrictions available in Apple’s settings, under Screen Time > Content & Privacy Restrictions. This means there’s no need to install a third party app to get going.
Use Screen Time content restrictions
- Navigate to Settings > Screen Time > Content & Privacy Restrictions, and switch to on.
Limit adult websites
- To auto-filter all adult websites, under Content Restrictions, go to Web Content and set “Limit Adult Websites” to On.
Allow only specific websites
- If you have younger children, select “Allowed Websites Only.” This way, you’ll limit your child’s exposure to only the “safer” platforms on the internet.
Set a Screen Time passcode
- Use a code the child doesn’t know, and make sure it’s different from the device passcode.
- Review Safari and browser permissions
- See if other browsers exist and limit installations of new apps to make sure that a workaround browser doesn’t get installed after.
If at all possible, leave the device in Family Sharing, and control it from afar. Keep in mind that these limitations are there to support supervision, and that these are not substitutes for active supervision.
Android settings that can help
Google’s Family Link plays the same role on Android that Screen Time plays on iPhone.
- Connect the child’s device to your account and add it to the supervised profile.
Block or approve websites in Chrome
- Inside Family Link, choose “Try to block explicit sites” or manually approve and block specific URLs.
Manage browser access and app permissions
- Check if your child can install other “unknown” browsers on their phone. If they can, you need to restrict installation for new apps on their phone.
Turn on safer search and account supervision
- The Google SafeSearch features work well enough to filter out harmful content. Make sure these features are always on and double check that your child’s account is supervised.
The idea, like with the iPhone, is to isolate the system: one browser, one rule set. This means that there is no easy way to set up a second, unsupervised option.
If the child keeps getting around controls
This is a common occurrence and it is advisable to plan for it in advance. Failure of controls are common due to:
- Switching to a free web browser that lacks filters.
- Utilizing a VPN or incognito/private internet browser mode.
- Making new accounts apart from the supervised ones.
- Using a school device or borrowing a friend’s phone.
If you’re seeing this pattern, a practical response works better than adding more exceptions one at a time.
- Delete excess browsers and leave only one browser on the phone.
- Set up restrictions on app downloads.
- Lock down account changes so your child can’t create a new profile without your login.
- Periodically inspect the device rather than when a problem occurs.
- Start over with the rules, don’t add patches when children find workarounds.
Device-specific advice by family setup
Start with the child’s device, not the parent’s. The ecosystem the child carries determines which tools apply.
| Family Setup | Best Starting Point |
| Parent uses iPhone, child uses iPhone | Screen Time, managed through Family Sharing |
| Parent uses Android, child uses Android | Family Link, linked to the parent’s Google account |
| Parent uses iPhone, child uses Android | Family Link still applies, since it’s tied to the child’s device, not the parent’s |
| Parent uses Android, child uses iPhone | Screen Time still applies, since it’s tied to the child’s device, not the parent’s |
Make sure to not only use your own ecosystem. If the child has an iPhone, Screen Time should be the first option to look into. For the child with Android, Family Link is on top.
Comparison or alternatives
The built-in features and third-party parental control software address the same issue in different ways.
| Features | Built-in Tools | Third Party Apps |
| Cost | Free | Often subscription-based |
| Setup | Simple, no extra app needed | Requires separate installation |
| Transparency | Settings are visible to the child if they look | Can run more quietly in the background |
| Reporting | Basic usage summaries | Often more detailed alerts and activity logs |
| Cross-device Management | Works within one ecosystem (Apple or Google) | Some, like FlashGetKids, manage both iPhone and Android from a single dashboard |
For most families, the easiest and most obvious thing to get started is built-in tools. When greater detail in reporting or real-time alerts are a must, then third-party options like FlashGet Kids prove to be the most effective. They also come in handy if you desire one dashboard for multiple device types.
How to talk to your child about website restrictions
The conversation matters as much as the settings. UNICEF‘s parenting guidance recommends honest, blame-free conversations about what a child does online and who they talk to. That openness works better than silence around the rules.
- Present the objective in a positive light, as a safety issue rather than punishment.
- In layman’s terms, tell the children which websites you’re banning and the reason behind it.
- Explicitly let them know what you will and will NOT monitor.
- Offer a way to request access if a legitimate site gets caught in the filter.
- Revisit the rules as the child gets older and earns more independence.
A limitation a kid knows is a lot more lasting than a limitation he or she merely runs into.
FAQ
No. It filters out known types of harmful categories, but the new sites are not always picked up the first time. Also, if the kids are motivated to find workarounds, it is pretty easy to bypass website blocking. Complement this with conversation and account monitoring for enhanced outcomes.
Neither website blocking or app blocking by themselves is enough to keep kids safe. You’ll have to combine both approaches as apps can carry their own browsers or messaging features that bypass a website filter.
Look for any additional browsers in the device and remove them. Then limit future app installations so new ones require your approval first.
Yes. Screen Time and Family Link offer the ability to create an allow list and/or a block list. This is a better way of adding website filters than to select a single blanket setting.
If it’s not introduced with an explanation, it can. Understanding parental monitoring research, open and explained supervision is more effective in the long term. Self-imposed restrictions are more likely to fall apart if a child finds out on his/her own and feels fooled by them.
Younger children may need restrictions that are “tighter” and/or in the form of an “allow list.” While older children and teens might require a higher degree of freedom, and a continued conversation. A 2025 Pew Research survey found that 68% of parents want kids to wait until at least 12. That figure gives a rough sense of when families start loosening the reins.
If you think that your child is in danger or suspect that he or she is being groomed, then you need to track location and messages. However, that in itself is a separate discussion, and you should always start with content filtering before moving onto stricter monitoring methods.
