To help keep kids safe online, we filter and block 18+ sites, as classified by the BBFC (British Board of Film Classification).
What does this mean for you?
If you try to go to sites that are 18+, we’ll check you’re over 18. You might get a ‘Timed out’ or ‘No Response’ message if it’s a secure site (HTTPS).
How do I prove I’m over 18?
There are three ways you can do this. Once you do, we’ll take off the filters and won’t ask again.
If you’re a Pay Monthly customer, log in to My O2. Select ‘Age restricted content’ from the dropdown menu under My O2 to the left of the page, then choose the level of content filtering that’s right for you.
Go to one of our shops with photo ID (passport or driving licence).
Prove you have a credit card on our age verification page
Where can I find out more about online safety for kids?
Explore our online safety page
Pop into an O2 store and chat to one of the team
Internet Matters offer expert advice and practical tips to support your family online
You can also set up the Parental Control service, which makes sure your children can only go to sites that are suitable for them. Go to parentalcontrol.o2.co.uk to set it up.
Any issues?
If you’re using a VPN or handset encryption, the above protections won’t work. Instead, you can install parental controls and secure them with a passcode, to ensure that your child is only able to access age-appropriate content.
Sometimes we might block a site by mistake, or we might miss an adult site. If this happens, call customer services on 202 to let us know.
And some sites, which host illegal content, are automatically blocked to everyone. We can’t unblock those.
If you're not sure about any techy terms, check out our jargon buster.
Last updated: 12/02/2025
