How to block Roblox on every device in the house
Roblox is on the phone, the tablet, the laptop and the console, and every one of them hides its parental settings somewhere different. One switch at the DNS level covers all of them at once — or only the hours you choose.
Why device settings fall short
Roblox turns up wherever a child can find a screen: the family tablet, a phone, a laptop, the console in the living room. Each has its own controls in its own place, and Roblox’s own settings belong to the account — a second account, or a different device, starts from scratch.
DNS filtering sits underneath all of that. The game still has to look up an address before it can reach anything, so a rule you set once covers the app, the website and every device on the profile, whoever is signed in.
Blocking it
- Create a profile. Make a profile for the device, or one for the whole house. Each profile carries its own rules, so a child’s tablet and your own phone can differ.
- Switch on Roblox. Find Roblox in the list of apps and services and switch it on. You pick it by name; there is no list of addresses to assemble or keep up.
- Point the devices at the profile. Set the profile’s DNS address on each device, or on the router to cover everything on the network in one go. The setup guide walks through each platform.
The change happens at the resolver, so it reaches every device on the profile straight away, without touching any of them.
Consoles
A games console usually has no encrypted DNS setting of its own, so it is covered from the router: set the profile there and everything on the network inherits it, console included. The setup guide covers routers, including UniFi, OPNsense, pfSense and OpenWrt.
Only at certain times
A total block is often the wrong tool — it is the version that gets argued about and then quietly switched off. A schedule does the switching for you: Roblox off on school nights and after bedtime, back at the weekend, with nobody having to remember anything.
If the worry is gaming in general rather than one game, the same profile can block other games by name alongside it.
If it looks like it has not worked
Almost always one of these, in the order they usually turn out to be true.
- The device is on mobile data. A phone set up only through the router is unfiltered the moment it leaves the house. Phones need their own profile configured on the device.
- A VPN is carrying its own DNS. Most VPN apps resolve through their provider, which bypasses the filter completely. To resolve this, check with your VPN provider on how to configure your device to use your custom DNS as opposed to the DNS from your VPN.
- The browser is going its own way. Chrome and Firefox have a secure-DNS setting of their own that can override the device’s. Worth a look if the app is blocked but the website is not.
- The device is remembering. It may hold on to the old answer for a few minutes. Turning Wi-Fi off and on clears it.
The dashboard’s troubleshooting page queries your profile directly and shows the answer it got, which separates “the rule is not doing what I thought” from “this device is not using the resolver at all”.
One thing worth noting
Always keep in mind the difference between home devices and mobile devices. Home devices always stay home but mobile devices can leave the home. For mobile devices, do not only rely on network-wide DNS configuration since this will not follow a mobile device that leaves home. Rather, also set up DeCloudUs DNS profile directly on the mobile device so that your DNS rules stay effective inside or outside the home.