How to Block Websites When You Need Focus

It's 2pm. You opened the doc. You're on Reddit. You've been here for twenty minutes and you don't remember deciding to come.
If that's the loop you're trying to break, learning how to block websites is one of the more useful boundaries you can give yourself. Not a personality overhaul. Just a small fence between you and the thing your hand reaches for when the work gets hard.
Here's what actually works, what doesn't, and how to pick the right layer for what's pulling at you.
Blocking sites is a focus boundary, not a personality fix
I used to think the problem was discipline. I'd install something, feel virtuous for a week, find a workaround by Friday, uninstall it by Sunday, and feel worse than when I started.
What changed: I stopped expecting the block to make me a different person. The block just buys you the three seconds between "ugh, this is hard" and "let me check Twitter." That's it. That's the whole job. Research on the cost of task-switching backs this up — every interruption pulls a real tax on attention, and the goal isn't perfection, it's reducing the number of switches.
If you go in expecting a website blocker to fix your relationship with work, you'll be disappointed. If you go in expecting it to make the bad option slightly more annoying than the good one — it works.
Choose the blocking layer that matches the distraction
Not every block belongs in the same place. The trick is matching the layer to where you actually slip.
Browser-level blocks
Best for: desktop work, single-browser distraction, low setup.

If you do 90% of your work in Chrome and your distraction is Reddit or YouTube specifically, a browser extension is the lightest setup that works. Free options like BlockSite or LeechBlock cover most cases. You can set schedules, block by category, or do a hard block with no off-switch.
The honest limitation: a browser block only works in that browser. If you've got Safari open in another window, you've already lost. For Chrome specifically, Google's extension and site management documentation covers the basics. Platform menus change, so check the latest official docs before you commit.
Phone-level blocks
Best for: the actual problem, if you're honest.
Most "I need to focus" failures aren't on the laptop. They're on the phone, two feet away, lighting up. iOS has Screen Time built in, which lets you set app limits and block specific websites in Safari — Apple's Screen Time documentation walks through it. Android has Digital Wellbeing, with its own focus mode and app timers.

These tools aren't perfect. You can override most of them in a few taps. But three seconds of friction is enough most of the time. The point isn't a prison. The point is making the bad option slower than the good one.
For Safari specifically, you can also use content blockers from the App Store to block at the network level inside the browser. Heavier setup, more durable.
App-based focus sessions
Best for: deep work blocks, multi-device users, people who break their own rules.
If you've already tried browser extensions and Screen Time and you keep working around them, the next layer is a dedicated focus app — Freedom, Cold Turkey, Opal. These sync across devices, can lock you out for a set time with no override, and treat the block as a session rather than a permanent setting.

The friction of setting up a session is the feature, not the bug. If you have to choose to start a block, you're already 60% of the way to focusing.
Pair the block with a replacement plan
Here's the part most "how to block websites" guides skip. Blocking the site doesn't tell you what to do instead.
If you block Twitter at 9am and have no plan for the next two hours, you'll find a new distraction within ten minutes. Maybe it's email. Maybe it's reorganizing your desk. The urge doesn't disappear — it just looks for a new exit.
What to do during the blocked window
Have one specific thing queued up. Not "work on the project." That's too vague and your brain will refuse. Try: "write the first three bullets of the intro." Small enough that starting isn't a decision.
I keep a sticky note on my laptop with the one task for the next focus block. When I close Twitter and feel the empty-handed twitch, the note is already there.
This is also where I started leaning on Macaron, honestly. I'd block the sites, sit down, and then waste the focus window deciding what to actually do. So now I'll just say "remind me what I was working on yesterday and give me three small starting moves" — and it remembers the context from last time, instead of me re-explaining myself to a blank prompt every morning. The block creates the space. Something has to fill it.

How to restart if you bypass it
You will bypass it. That's normal. The mistake is treating one slip as evidence the whole system is broken.
When I cave and disable the blocker, I try not to spiral. I just restart the session. Same task. Same fifteen minutes. The block isn't a moral test — it's a tool. Tools get picked up and put down.
What not to do with website blockers
A short list, mostly from things I've done wrong:
- Don't block everything on day one. You'll resent the setup and uninstall it within a week. Start with the two or three worst offenders.
- Don't rely on willpower-based blocks if you've already proven you'll work around them. Pay the small monthly cost for one with a real lock mechanism.
- Don't use blocks to monitor or control other people. This guide is about your own devices and your own work. Anything else is a different conversation, and a more careful one.
- Don't expect the block to replace the underlying question — which is usually "what am I avoiding and why is this task so unpleasant right now?" The block buys you a chance to ask. It doesn't answer.
FAQ
How do I block a website on Chrome?
The simplest path is a free extension like BlockSite or LeechBlock from the Chrome Web Store. Install, add the sites you want blocked, set a schedule if you want one. For more durable blocking, Chrome supports managed policies through your Google account settings. Menu paths change often — please refer to the latest official Chrome documentation before relying on any specific step.
Can I block websites on iPhone or Android?
Yes. On iPhone, the path is Settings → Screen Time → Content & Privacy Restrictions → Content Restrictions → Web Content. On Android, Digital Wellbeing covers most needs, though Samsung, OnePlus, and other skins use different names — check the official documentation for your specific device.
For Safari on iPhone, you can also add a content blocker app from the App Store, which blocks at a layer Screen Time can't reach.
Are website blockers enough to stop procrastination?
Honestly, no. A blocker handles the reach-for-it reflex. It doesn't handle the underlying reason you're avoiding the task. If you find yourself bypassing every blocker you install, the question isn't "which blocker is best." It's "what's making this task feel unmanageable, and can I make it smaller?"
When should I use a focus app instead?
When you've tried browser extensions and phone settings and you're still slipping. Focus apps add a session structure that's harder to break and easier to start. They cost a few dollars a month and are worth it if you've burned a year of unproductive afternoons on the same five tabs.
It's not the blocker that does the work. It's the small clearing it makes in your day, and what you decide to do with it. Worth trying if you've been losing the same hour to the same tabs for months. Start with one site. See if it holds.
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