Why Screen Time isn't blocking websites on your Mac
When Screen Time is not blocking websites on a Mac, the cause is usually one of three things: Content & Privacy is turned off, the site was added to the wrong list, or you opened it in Chrome, Firefox, or another browser that Screen Time doesn't control the way it controls Safari. Fix those first. If the site still loads in Safari, check the address variant, the limit type, the passcode, and whether a macOS bug is involved.
- Confirm Screen Time and Content & Privacy are on.
- Confirm the site is on the Restricted list under Limit Adult Websites.
- Test in Safari, not another browser.
- Test the exact address you use, including
www.andm.versions. - Quit and reopen Safari, then test again.
The steps below follow Apple's guides for macOS Sonoma 14, Sequoia 15, and Tahoe 26. macOS 27 changed parts of Screen Time, and there is a note on that near the end.
Quick diagnosis
| What you see | Likely cause | Fix |
|---|---|---|
| Site opens in every browser | Content & Privacy is off, or the site is on the Allowed list | Turn it on and move the site to Restricted |
| Blocked in Safari, opens in Chrome or Firefox | Screen Time's web setting is Safari-centered | Use Safari only, or a Mac-level blocker |
example.com is blocked, www.example.com opens | Different hostname | Add each variant you use |
| Site opens after the daily limit | Limit without "Block at end of limit", or extra time allowed | Select the option and lock settings |
| Set on iPhone, not applied on Mac | Share Across Devices is off | Turn it on, or set the Mac separately |
If what you want is the same sites blocked in every browser during set hours each week, Screen Time can't do that; Cactus for Mac, made by the author of this guide, does it with one recurring schedule for $19.99 once after a 7-day free trial, and its limits are listed below.
1. Screen Time or Content & Privacy is turned off
Website restrictions live inside Content & Privacy, and that section has its own switch. Screen Time can be on while Content & Privacy is off.
- Open System Settings and click Screen Time.
- If you see Turn On App & Website Activity, turn it on. Apple's Screen Time setup guide covers this step.
- Click Content & Privacy and turn it on.
If you're in a Family Sharing group, check the Family Member menu at the top. A restriction set for one person doesn't apply to another account.
2. The site is on the wrong list, or the wrong mode is selected
Apple's web settings have three modes, and the menu label differs by version:
- Sonoma 14: Content & Privacy → Store, Web, Siri & Game Center Content → Web Content.
- Sequoia 15 and Tahoe 26: Content & Privacy → App Store, Media, Web, & Games → Safari.
The modes are Unrestricted Access, Limit Adult Websites, and Allowed Websites Only. To block a few specific sites, choose Limit Adult Websites, click Customize, and add each site under Restricted. A site added under Allowed in this mode is allowed, not blocked. That mix-up is easy to make because both lists sit in the same window.
Allowed Websites Only works the other way: everything is blocked except the list. Use it if you want a short allowlist, not a blocklist. Apple describes both modes in its App Store, Media, Web, & Games guide.
3. You're using Chrome, Firefox, Arc, Brave, or Edge
This is the cause behind most "Screen Time website block not working" reports. Apple documents the website restriction under an option labeled Safari in Sequoia and Tahoe. It does not document support for other browsers.
Apple Community threads from 2022 and 2023 describe restricted sites loading in Chrome while Safari blocks them. Some replies, like this one, suggest turning on a "ScreenTime" flag at chrome://flags. Apple doesn't document that fix, and experimental flags come and go between Chrome versions, so test it rather than rely on it.
The practical fix is to treat Screen Time's website list as a Safari control. If you use other browsers, either remove them or use a blocker that works below the browser. The guides to blocking websites in Chrome on Mac and Arc, Brave, and Firefox cover the options.
4. A private window in another browser
An Apple Community answer reports that choosing Limit Adult Websites turns off private browsing in Safari, and that it does not turn off private modes in other browsers. Apple's own guide doesn't cover private windows. In practice, a Chrome Incognito or Firefox private window is no more covered than a normal window in those browsers, for the reason above. Test a private window in each browser you use.
5. The address is a different hostname
Apple doesn't document how the Restricted list treats subdomains, and user reports disagree. Don't assume one entry covers every version of a site. Add the variants you actually visit and test each one:
www.and bare domain:reddit.comandwww.reddit.com- Mobile sites:
m.youtube.com,mobile.x.com - Other subdomains:
old.reddit.com,music.youtube.com - Separate domains:
youtu.befor YouTube,twitter.comfor X
6. The page was already open
A tab that loaded before you added the restriction can stay on screen. Reload it, or quit Safari and reopen it. If a page still appears, clear Safari's website data for that site under Safari → Settings → Privacy → Manage Website Data, then test again.
7. You set a time limit, not a block
App Limits give a daily allowance for a site. On Sonoma, Sequoia, and Tahoe, Apple's App Limits guide says to select Block at end of limit if you want the site blocked when the time runs out. Without it, the limit doesn't block.
Note that App Limits are an allowance, not a time window. They can't say "block this site from 9:00 to 17:00." For that rule, see how to block websites on a schedule.
8. No passcode, or you know the passcode
Apple's Lock Screen Time Settings option requires a passcode to change Screen Time settings and to allow more time when limits expire. Without it, the person at the Mac can simply change the setting or take more time.
If you set the passcode yourself, Screen Time adds a step but not much else. It holds up best when someone else keeps the passcode. Apple's Sonoma guide also noted that when you lock Screen Time for a family member with an administrator account, you're prompted to convert it to a standard account.
9. Share Across Devices is off, or another device changed the setting
Apple's iPhone guide says that when Share Across Devices is on, Screen Time limits and schedules apply to your iPhone, iPad, and Mac. When it's off, "each device maintains its own separate Screen Time settings" (Apple).
So a site restricted on your iPhone won't be blocked on your Mac unless the setting is shared. If it is shared, a change made on another device can also change the Mac. Check the setting on both devices, then confirm the Restricted list on the Mac itself.
10. Everything looks right and it still doesn't block
Some people report Limit Adult Websites on, the site on the Restricted list, and the site still loading. Those threads (one example) have no confirmed cause. Before assuming a bug, try these in order:
- Restart the Mac.
- Install the latest macOS update in System Settings → General → Software Update.
- Turn Content & Privacy off, then on again, and re-enter the restricted site.
- Remove the site and add it again with only the domain, such as
youtube.com, with nohttps://and no path. - Test in a new Safari window in your default profile, with Safari extensions turned off under Safari → Settings → Extensions. This rules out a profile or extension in the middle without guessing which one.
If none of that works, Apple Support is the right next step, because the cause is inside macOS.
A note on macOS 27
Apple's support site now documents macOS 27, and Screen Time changed there. App Limits are replaced by Schedules and Time Allowances, which Apple documents by category (Entertainment, Games, Social Media) rather than for a single website (Apple). One Apple page labels the button Content & Privacy Restrictions, while the Safari web settings are still documented under App Store, Media, Web, & Games. For children's accounts, Apple now documents website lists under System Settings → Family, in Apps & Websites.
Apple also says the latest Screen Time features need version 27 on all your Apple devices. If your Mac runs 27 and your iPhone doesn't, expect differences in what syncs. Labels may differ from the steps above, so match the mode names rather than the menu path.
When to use a system-level scheduled blocker instead
Screen Time is fine for a permanent Safari restriction, especially when someone else holds the passcode. It's a poor fit for two common goals: blocking the same sites in every browser, and blocking them only during set hours.
A blocker that works at the Mac level handles the first. The hosts file is the free, manual version. Cold Turkey and Freedom also cover several browsers, through per-browser extensions and a local proxy respectively, and they offer things Cactus doesn't, including app blocking, multiple schedules, and Windows or iPhone versions.
Cactus for Mac is a scheduled website blocker. You choose one recurring schedule (the weekdays, one time range, one site list), and it blocks those sites through the hosts file and the pf firewall, so the rule applies in Safari, Chrome, Firefox, Arc, and Brave without an extension. It blocks each domain and its www. version, plus m.youtube.com for YouTube and twitter.com for X. Add other subdomains yourself. An active block can't be ended early in Cactus, though a Mac administrator can still remove the app. Browser secure DNS, iCloud Private Relay, proxies, and some VPNs can get around it, so test the browsers you use. How Cactus blocks websites explains the details, and Cactus vs Screen Time compares the two side by side.
