Legal

Privacy Policy

DeepBlocker is built to protect your privacy, so it collects as little as possible — effectively nothing. Everything runs locally on your device.

Last updated: 14 June 2026

The short version

  • No telemetry, no analytics, no tracking.
  • No accounts, no sign-up, no cloud.
  • Your settings and statistics never leave your device.
  • DeepBlocker only reaches the internet to download filter-list updates.

Data we collect

None. DeepBlocker has no servers and no backend. It does not collect, transmit, sell, or share any personal information, browsing history, or usage data.

Analytics and telemetry

There is no analytics SDK and no telemetry of any kind. DeepBlocker does not measure how you browse or how you use the extension.

Accounts and cloud

DeepBlocker has no accounts and no cloud synchronization. There is nothing to sign up for and nothing stored on a remote service.

Tracking

DeepBlocker does not track you. Its entire purpose is the opposite — to reduce the ads and trackers that other sites try to load.

Local storage

DeepBlocker stores the following on your device only, using your browser's local extension storage:

  • Your protection mode and settings.
  • Your enabled filter lists and their cached content.
  • Local counters, such as how many requests were blocked.

This data stays on your machine. You can clear it at any time from the dashboard or by removing the extension.

Permissions

DeepBlocker requests only the permissions it needs to block content on the pages you visit. It uses them locally and never to collect data:

  • Website data on the pages you open — to inspect and block ad and tracker requests as a page loads.
  • Tabs and navigation — to show the current site in the popup and keep per-page statistics.
  • Storage — to save your settings, filter lists, and local counters on your device.
  • Alarms — to schedule background filter-list updates.
  • Privacy settings — to apply the optional browser privacy options you turn on in Settings, such as blocking prefetching.

Filter lists

DeepBlocker uses public, community-maintained filter lists to decide what to block. It periodically downloads updated list content from public filter-list providers and content-delivery networks so your protection stays current. These updates download filter content only.

Third-party requests

The only outbound requests DeepBlocker makes are to fetch those filter-list updates. No personal data, page content, browsing history, or identifiers are sent with them. DeepBlocker does not load any analytics, advertising, or tracking scripts of its own.

Security

DeepBlocker processes everything locally inside your browser. It does not download or run remote code, and it opens no network connections other than the filter-list downloads described above. It is a Manifest V2 extension and keeps its filtering logic on your device.

Children's privacy

DeepBlocker does not collect data from anyone, including children.

Changes to this policy

If this policy changes, the updated version will be published on this page with a new date.

Contact

Questions about privacy? Reach the maker, Misaki-Sakura, on Discord: misakisakura3.