How to block You.com

How to block You.com on every device

You.com is an AI search engine and chat assistant with agents that browse, write, and code. Below: how to block You.com in the browser, on phones and tablets, on your home or school network, and on managed devices.

Start a free trial

AI blocker suite for browsers, desktop, and mobile

Chrome
Edge
Firefox
Safari
iOS
Android
macOS
Windows

Blocks prompts and AI apps
100% on-device processing

You.com

AI search engines

you.comBlocked

1 hostname in the Nullgen catalog

Every entry also covers its subdomains, so the You.com app and API are blocked too.

What You.com connects to

These are the hostnames You.com uses for its website, its apps, and its API. Each entry is matched as a suffix — blocking you.com also blocks every subdomain of it — so the You.com app cannot slip through on a hostname that is not listed. Shared hosts that other products need are deliberately left out.

Hostnames blocked for You.com
Hostname	Role
you.com	Main website

Block You.com in the browser

Free: the Nullgen browser extension

The free extension blocks You.com and every other tool in the catalog in Chrome, Edge, Firefox, and Safari. It works on the page itself — no DNS change, no policy — and updates as the catalog grows.

Download Free Extension

Managed browsers: block the sites by policy

On a school or company fleet, push the hostnames as a browser policy so You.com is blocked even when someone uninstalls extensions. These snippets use the official Chrome, Edge, and Firefox policy names and the same hosts listed above.

Chrome and Edge — URLBlocklist

{
    "URLBlocklist": [
        "you.com"
    ]
}

Firefox — policies.json

{
    "policies": {
        "WebsiteFilter": {
            "Block": [
                "*://you.com/*",
                "*://*.you.com/*"
            ]
        }
    }
}

Chrome and Edge treat a bare hostname as the host plus every subdomain. Firefox needs both the apex and the wildcard pattern.

Need every AI tool in one file, or a .reg or macOS profile?

Open the free policy generator

Block the You.com app on phones and tablets

Nullgen mobile app

The Nullgen app blocks You.com and 100+ other AI apps and sites on the whole device with an on-device filter — the app, the website, and the API, on any network, with no DNS server to run. Included with Nullgen Pro.

Download on the App Store

Coming soon

Without Nullgen: Screen Time on iPhone and iPad

1Open Settings → Screen Time → Content & Privacy Restrictions and turn restrictions on. This covers You.com in Safari and in apps that use Apple’s web filter.
2Under Web Content, choose Limit Adult Websites — the setting that lets you deny you.com by name.
3Under Never Allow, add you.com. Safari and apps that use Apple’s web filter will refuse it.
4To keep the You.com app off the device entirely, delete it and set Installing Apps to Don’t Allow, or use Ask to Buy on a child’s Apple Account.

Without Nullgen: Family Link on Android

1Open Family Link, choose the child, then Controls → Content restrictions → Google Chrome — where You.com can be blocked by site.
2Choose Only allow approved sites, or add you.com under Blocked sites.
3Under Controls → App limits, block the You.com app, or require approval for new installs from Google Play.

Block You.com on your home or school network

A DNS blocker such as Pi-hole, AdGuard Home, NextDNS, or pfBlockerNG blocks You.com for every device on the network — laptops, phones, consoles, and the You.com app — without installing anything on them. Subscribe to the You.com file from the public blocklist, or paste the rules directly.

Subscribe to the You.com list

Every vendor, one list — on GitHub

AdGuard Home, uBlock Origin, and Brave rules

||you.com^

DNS blocking cannot see inside a VPN or a phone on mobile data. For a block that follows the device, use the Nullgen apps or an MDM profile.

Block You.com on managed devices

Schools and companies can block You.com on every managed iPhone, iPad, laptop, and Chromebook from the MDM they already run — Intune, Jamf, Kandji, or Google Workspace — with per-person policies and an approval flow for legitimate use. Nullgen Pro provides the profiles and the dashboard; these guides walk through the setup.

Start a free trial

Questions about blocking You.com

Does the free Nullgen extension block You.com?
Yes. The free extension blocks prompts on You.com and every other AI tool in the catalog in Chrome, Edge, Firefox, and Safari. It works on the page itself, so it needs no policy and no DNS change.
Will blocking You.com break other websites?
No. Every hostname on this page belongs to You.com alone. Shared websites that other products depend on are never on the list — which is also why AI features built into those products stay reachable.
Can someone get around a You.com block?
A browser-only block can be bypassed with another browser or the You.com app, and a network block can be bypassed with a VPN or a phone on mobile data. A block on the device itself — the Nullgen apps, Screen Time, or an MDM profile — follows the device wherever it goes.
Does this block the You.com app, not just the website?
A DNS or device-level block does. The app talks to the same hostnames listed above, and every entry covers its subdomains, so the app cannot slip through on a hostname that is not listed. A browser policy or extension only covers the browser.
What happens when You.com adds a new hostname?
The catalog is updated as vendors change, and the Nullgen apps, the extension, and the public blocklist all read from it, so a new hostname reaches every device without anyone editing a list by hand.

More AI search engines

Browse all 100+ AI tools

Block You.com today

Start with the free browser extension. Add Nullgen Pro when you need the You.com app blocked on phones, tablets, and desktops, with approvals for the people who really need it.

Download Free Extension Explore plans