# Mac Website Blocking Guides > Step-by-step guides to blocking websites on a Mac: Screen Time, Safari, Chrome, YouTube, X, Reddit, schedules, and focus while coding agents run. Canonical: https://usecactus.app/guides ## Block websites on your Mac Practical, tested guides for keeping distracting websites closed on macOS, with or without Cactus. ## Block websites on Mac - [How to block websites in Arc, Brave, and Firefox on Mac](https://usecactus.app/guides/block-websites-arc-brave-firefox-mac): How to block websites in Arc, Brave, and Firefox on a Mac: per-browser extensions and policies, why Brave Shields is not a site blocker, and one fix for all. - [How to block websites on Mac with Terminal and the hosts file](https://usecactus.app/guides/block-websites-mac-terminal-hosts-file): Block websites on a Mac from Terminal by editing /etc/hosts. Exact commands, IPv6 and www entries, DNS flush, why it often fails, and how to undo it. - [How to block websites on a schedule on Mac](https://usecactus.app/guides/block-websites-on-a-schedule-mac): Block websites during work hours on a Mac. What Screen Time can and can't schedule, what changed in macOS 27, and which scheduled website blockers fill the gap. - [How to block websites on Chrome on a Mac](https://usecactus.app/guides/how-to-block-websites-on-mac-chrome): How to block websites on Mac Chrome with an extension, Chrome's URLBlocklist policy, or a Mac-level blocker, plus why Screen Time and Secure DNS trip people up. - [How to block websites on Mac or MacBook](https://usecactus.app/guides/how-to-block-websites-on-mac): How to block websites on a Mac or MacBook with Screen Time, App Limits, the hosts file, an extension, or a recurring schedule. Steps, tradeoffs, and tests. - [Website blocker for Safari on Mac](https://usecactus.app/guides/website-blocker-for-safari-mac): Compare Screen Time, Safari extensions, and Mac-level website blockers for Safari on Mac, with current steps, Private Relay caveats, and when each one fits. - [Website blocker without an extension on Mac](https://usecactus.app/guides/website-blocker-without-extension-mac): A website blocker with no extension works in every browser on your Mac. Compare Screen Time, the hosts file, DNS filtering, and system-level apps, with caveats. ## Block a specific site - [How to block social media on your Mac](https://usecactus.app/guides/block-social-media-on-mac): Block social media on your Mac or MacBook: the exact domains for 12 networks, how to block them in Safari with Screen Time, and how to block them on a schedule. - [How to block Facebook on your Mac](https://usecactus.app/guides/how-to-block-facebook-on-mac): Block Facebook on your Mac or MacBook with Screen Time, a daily limit, or a recurring schedule. Includes the domains to add and what happens to Messenger. - [How to block Instagram on a MacBook or Mac](https://usecactus.app/guides/how-to-block-instagram-on-mac): Block Instagram on a MacBook in Safari, Chrome, or any browser: Screen Time steps for macOS 14 to 27, a work-hours schedule, and the exact hostnames to add. - [How to block Netflix on your Mac](https://usecactus.app/guides/how-to-block-netflix-on-mac): How to block Netflix on a Mac or MacBook with Screen Time, a daily limit, or a recurring schedule, and why there is no Netflix Mac app as of October 2026. - [How to block Reddit on a Mac or MacBook](https://usecactus.app/guides/how-to-block-reddit-on-mac): How to block Reddit on a MacBook in Safari or any browser: Screen Time steps, a work-hours schedule, and why old.reddit.com and i.redd.it need their own entry. - [How to block X (Twitter) on Mac](https://usecactus.app/guides/how-to-block-twitter-x-on-mac): How to block X on a Mac or MacBook: block x.com and twitter.com in Safari or Chrome, decide on t.co and embeds, and keep X off during your work hours. - [How to block YouTube on Mac or MacBook](https://usecactus.app/guides/how-to-block-youtube-on-mac): Block YouTube on a Mac or MacBook with Screen Time, a daily limit, or a recurring Cactus schedule. The exact domains to add, Shorts, and common fixes. ## Focus while coding - [How to get a Claude Code notification when it's done](https://usecactus.app/guides/claude-code-notification-when-done): Get a Claude Code notification when done: built-in desktop alerts, a Stop hook that plays a sound, and permission alerts on macOS. Copy-paste settings.json. - [The most distracting websites to block, for developers](https://usecactus.app/guides/distracting-websites-to-block-developers): The most distracting websites to block as a developer, grouped by type, with the exact hostnames to add and the sites to keep open: docs, GitHub, registries. - [What to do while Claude Code is working](https://usecactus.app/guides/what-to-do-while-claude-code-is-working): What to do while Claude Code is working: review the plan, queue the next prompt, run a second agent, or stand up. And why opening YouTube costs 20 minutes. ## Fix a block - [How to turn off SelfControl on Mac](https://usecactus.app/guides/how-to-turn-off-selfcontrol): How to turn off SelfControl on Mac: why an active block can't be stopped, what SelfControl's docs say to do when a block is stuck, and how to avoid it. - [Screen Time not blocking websites on Mac](https://usecactus.app/guides/screen-time-not-blocking-websites-mac): Screen Time not blocking websites on your Mac? Check these 10 causes, from Content & Privacy being off to Chrome, subdomains and passcodes, with current fixes.