Answer Summary
Key Takeaways
Let's be straight about this one, because most guides aren't: Android doesn't have a built-in switch to block a single website, and neither does Chrome for Android. What it has is time limits; useful, but not the same thing. Here's what actually works.
Step by step
- Limit apps (Digital Wellbeing): Settings → Digital Wellbeing & parental controls → App timers → tap Set timer next to an app → choose time (the app closes when time's up; timers reset at midnight).
- Focus mode: Settings → Digital Wellbeing & parental controls → Focus mode → choose apps to pause → Turn on now or Set a schedule.
- Truly block a site (options): Google Family Link (manage a child's device); or Private DNS (Settings → Network & Internet → Private DNS) for category-level filtering; or a third-party app (BlockSite, AppBlock) that covers all browsers.
- Family Link site block: Family Link app → select child → Controls → Google Chrome and web → choose a filter, or under Manage sites → Approved/Blocked sites → Add a website.
Good to know
So to be clear: Digital Wellbeing's site “timers” are time limits, not blocks, and they only apply to Chrome. And Family Link turns off Incognito on the device it manages.
If the real goal is a quieter night, the simplest fix skips software entirely: charge the phone in another room and keep a clock by the bed. More in the full guide.