Screen Time Tracker & Website Blocker by Digital Shields - Tech
Block distracting websites with daily limits, track screen time with idle excluded, and see your real attention span. 100% private.
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About this extension
A screen time tracker and website blocker in one. See exactly how much time you spend online, block distracting websites with daily time limits, and get the one number no other screen time tracker measures: your real attention span.
Most screen time trackers tell you that you spent four hours on YouTube. Attention tells you why that happened - and gives you a site blocker strict enough to do something about it.
Free to use, no account required, and nothing you browse ever leaves your computer.
WHAT MAKES THIS SCREEN TIME TRACKER DIFFERENT
Every other website usage tracker reports totals. Totals hide the problem. Four hours in one focused block and four hours split across two hundred tab switches look identical on a pie chart, but they are not the same day.
Attention measures the shape of your focus:
• Attention span - your typical unbroken stretch on one site
• Longest focus - the best run you managed all week
• Switches per hour - how fragmented the day really was
• Rabbit holes - chains of four or more different sites with no pause between them
• Deep focus share - how much of your time was in sessions over five minutes
Nothing else in the Chrome Web Store measures this.
SCREEN TIME TRACKING THAT IS ACTUALLY ACCURATE
• Per-site screen time, updated live
• Idle time excluded automatically - walk away from the keyboard and the clock stops
• Only the active, focused tab is counted, so background tabs never inflate your numbers
• Sleep and browser restarts are handled, so a closed laptop never becomes eight hours of screen time
Most time trackers get at least one of these wrong. It is the difference between web usage stats you trust and data you ignore.
BLOCK DISTRACTING WEBSITES - DAILY TIME LIMITS THAT ACTUALLY HOLD
Set a website time limit on any site - a daily cap you choose. When you reach it the page is replaced, not a notification you can swipe away. Every tab on that domain is blocked, so switching to your second YouTube tab does not work.
Free: block websites with a daily limit from 15 minutes to 3 hours, on as many sites as you like, with a five-minute snooze.
This is a website blocker built for people who keep talking their way past ordinary blockers.
BUILT-IN TASK MANAGER AND TO-DO LIST - FREE
A to-do list lives right in the popup, because the thing you meant to do is the reason you opened the browser in the first place.
• Four lists: Today, This Week, This Month and Someday
• Add a task and press Enter - no account, no sync, no setup
• Click any task to edit it, tick it off, or move it to another list
• A badge on the toolbar shows how many tasks are still open today
• Unfinished tasks never disappear on their own. Only completed ones age out
The whole task manager is free. Pro adds due dates with overdue sorting, priorities, repeating tasks that refile themselves when you tick them, and a link from a task to a website so you can see how long that job actually took.
A DAILY FOCUS SCORE, 0 TO 100
One number for how the day went - a productivity score built from how your time split across categories and how concentrated it was. Sites are sorted automatically into Work, Learning, News, Finance, Social, Fun, Shopping and Other. No setup and no manual tagging, and you can re-categorise any site yourself in one click.
See how much time you spend online by day, yesterday, week, month, year, or as a running total since you installed. Every period compares against the one before, so you know whether you are improving. An hour-of-day heatmap shows when you actually browse, which is usually more revealing than what you browse.
PRO - $9.99 A YEAR, AFTER A 7-DAY FREE TRIAL
Every Pro feature is unlocked for seven days when you install. No card, no account, nothing to cancel - when the week is up it simply goes back to free.
• Your own categories - the eight built-in buckets not quite your work? Add up to six of your own, say whether each counts as productive, neutral or distracting, and assign any site to it. They then drive the Focus Score, your daily goal and category blocking exactly as the built-in ones do
• Daily goals and streaks - set a limit on distraction, total screen time, or a Focus Score to beat, then build a run of days you kept it. Your streak is scored against the history you already have, so it starts where you actually are rather than at zero, and the opening target is fitted to how you really browse
• Your weekly review - the extension reads your last seven days and hands you a job title you did not ask for, with the figures that earned it and one thing worth changing
• Focus sessions - a focus timer for 25, 50 or 90 minutes of blocking on demand
• Recurring schedules - "block Social and Fun, weekdays 9 to 5". Rules work by category, so websites you have never visited are covered automatically
• Strict Mode - removes the escape hatches. No snoozing, no ending a session early, no quietly raising a daily limit. Switching it off takes a delay you set in advance, while you still meant it
• Task manager add-ons - due dates, priorities, repeating tasks, and time-on-site per task
• Unlimited history - step back through any month or any year. Free keeps 180 days
• CSV export with categories, ready for a spreadsheet
• Backup and restore, so a reinstall never costs you your history
• Five extra themes: Midnight, Nord, Forest, Sepia and Rose
One payment a year. No subscription traps, no account required.
PRIVATE BY DESIGN - YOUR BROWSING NEVER LEAVES THIS DEVICE
No server. No analytics. No browsing history uploaded, ever. Domains, times and every statistic are computed on your own machine and stored in local browser storage.
Site categorisation runs from a table bundled inside the extension, so classifying a website never makes a network request. The extension never reads the content of any page you visit - only the domain name. It asks for no permission to read or change data on the websites you use.
After a couple of days the extension offers to take your name and email so you can be told about updates. It is optional, it can be dismissed, and nothing is withheld if you decline. If you give it, that single submission is the only thing ever sent, and it is never combined with your browsing data.
WHO THIS IS FOR
Students who lose evenings to rabbit holes. Remote workers whose focus is quietly shredded by tab switching. Anyone with ADHD who already knows they are distracted and wants the number rather than the lecture. Anyone doing a digital detox who needs a website blocker that does not fold the moment it becomes inconvenient. Anyone chasing better time management and productivity who is tired of screen time trackers that only produce prettier charts.
HONEST ABOUT WHAT IT CANNOT DO
Strict Mode cannot stop you disabling or uninstalling the extension. It is a speed bump sized to outlast an impulse, not a lock, and the extension says so in its own interface rather than pretending otherwise.
The attention span figure is measured from your own browsing, so it needs a few days of use before it means anything.
It tracks browser time only. Time in other applications is not screen time this extension can see, and it does not claim to.
Install Attention and find out what your real attention span is. Most people are surprised, and not in a good way.
Most screen time trackers tell you that you spent four hours on YouTube. Attention tells you why that happened - and gives you a site blocker strict enough to do something about it.
Free to use, no account required, and nothing you browse ever leaves your computer.
WHAT MAKES THIS SCREEN TIME TRACKER DIFFERENT
Every other website usage tracker reports totals. Totals hide the problem. Four hours in one focused block and four hours split across two hundred tab switches look identical on a pie chart, but they are not the same day.
Attention measures the shape of your focus:
• Attention span - your typical unbroken stretch on one site
• Longest focus - the best run you managed all week
• Switches per hour - how fragmented the day really was
• Rabbit holes - chains of four or more different sites with no pause between them
• Deep focus share - how much of your time was in sessions over five minutes
Nothing else in the Chrome Web Store measures this.
SCREEN TIME TRACKING THAT IS ACTUALLY ACCURATE
• Per-site screen time, updated live
• Idle time excluded automatically - walk away from the keyboard and the clock stops
• Only the active, focused tab is counted, so background tabs never inflate your numbers
• Sleep and browser restarts are handled, so a closed laptop never becomes eight hours of screen time
Most time trackers get at least one of these wrong. It is the difference between web usage stats you trust and data you ignore.
BLOCK DISTRACTING WEBSITES - DAILY TIME LIMITS THAT ACTUALLY HOLD
Set a website time limit on any site - a daily cap you choose. When you reach it the page is replaced, not a notification you can swipe away. Every tab on that domain is blocked, so switching to your second YouTube tab does not work.
Free: block websites with a daily limit from 15 minutes to 3 hours, on as many sites as you like, with a five-minute snooze.
This is a website blocker built for people who keep talking their way past ordinary blockers.
BUILT-IN TASK MANAGER AND TO-DO LIST - FREE
A to-do list lives right in the popup, because the thing you meant to do is the reason you opened the browser in the first place.
• Four lists: Today, This Week, This Month and Someday
• Add a task and press Enter - no account, no sync, no setup
• Click any task to edit it, tick it off, or move it to another list
• A badge on the toolbar shows how many tasks are still open today
• Unfinished tasks never disappear on their own. Only completed ones age out
The whole task manager is free. Pro adds due dates with overdue sorting, priorities, repeating tasks that refile themselves when you tick them, and a link from a task to a website so you can see how long that job actually took.
A DAILY FOCUS SCORE, 0 TO 100
One number for how the day went - a productivity score built from how your time split across categories and how concentrated it was. Sites are sorted automatically into Work, Learning, News, Finance, Social, Fun, Shopping and Other. No setup and no manual tagging, and you can re-categorise any site yourself in one click.
See how much time you spend online by day, yesterday, week, month, year, or as a running total since you installed. Every period compares against the one before, so you know whether you are improving. An hour-of-day heatmap shows when you actually browse, which is usually more revealing than what you browse.
PRO - $9.99 A YEAR, AFTER A 7-DAY FREE TRIAL
Every Pro feature is unlocked for seven days when you install. No card, no account, nothing to cancel - when the week is up it simply goes back to free.
• Your own categories - the eight built-in buckets not quite your work? Add up to six of your own, say whether each counts as productive, neutral or distracting, and assign any site to it. They then drive the Focus Score, your daily goal and category blocking exactly as the built-in ones do
• Daily goals and streaks - set a limit on distraction, total screen time, or a Focus Score to beat, then build a run of days you kept it. Your streak is scored against the history you already have, so it starts where you actually are rather than at zero, and the opening target is fitted to how you really browse
• Your weekly review - the extension reads your last seven days and hands you a job title you did not ask for, with the figures that earned it and one thing worth changing
• Focus sessions - a focus timer for 25, 50 or 90 minutes of blocking on demand
• Recurring schedules - "block Social and Fun, weekdays 9 to 5". Rules work by category, so websites you have never visited are covered automatically
• Strict Mode - removes the escape hatches. No snoozing, no ending a session early, no quietly raising a daily limit. Switching it off takes a delay you set in advance, while you still meant it
• Task manager add-ons - due dates, priorities, repeating tasks, and time-on-site per task
• Unlimited history - step back through any month or any year. Free keeps 180 days
• CSV export with categories, ready for a spreadsheet
• Backup and restore, so a reinstall never costs you your history
• Five extra themes: Midnight, Nord, Forest, Sepia and Rose
One payment a year. No subscription traps, no account required.
PRIVATE BY DESIGN - YOUR BROWSING NEVER LEAVES THIS DEVICE
No server. No analytics. No browsing history uploaded, ever. Domains, times and every statistic are computed on your own machine and stored in local browser storage.
Site categorisation runs from a table bundled inside the extension, so classifying a website never makes a network request. The extension never reads the content of any page you visit - only the domain name. It asks for no permission to read or change data on the websites you use.
After a couple of days the extension offers to take your name and email so you can be told about updates. It is optional, it can be dismissed, and nothing is withheld if you decline. If you give it, that single submission is the only thing ever sent, and it is never combined with your browsing data.
WHO THIS IS FOR
Students who lose evenings to rabbit holes. Remote workers whose focus is quietly shredded by tab switching. Anyone with ADHD who already knows they are distracted and wants the number rather than the lecture. Anyone doing a digital detox who needs a website blocker that does not fold the moment it becomes inconvenient. Anyone chasing better time management and productivity who is tired of screen time trackers that only produce prettier charts.
HONEST ABOUT WHAT IT CANNOT DO
Strict Mode cannot stop you disabling or uninstalling the extension. It is a speed bump sized to outlast an impulse, not a lock, and the extension says so in its own interface rather than pretending otherwise.
The attention span figure is measured from your own browsing, so it needs a few days of use before it means anything.
It tracks browser time only. Time in other applications is not screen time this extension can see, and it does not claim to.
Install Attention and find out what your real attention span is. Most people are surprised, and not in a good way.
Rated 3.7 by 3 reviewers
Permissions and data
Required permissions:
- Access browser tabs
Optional permissions:
- Access your data for docs.google.com
More information
- Add-on Links
- Version
- 2.30.1
- Size
- 293.26 KB
- Last updated
- 2 days ago (Nov 10, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection