Filter

How AT Filter works

A filter running on every device at home, a console for parents, and a team that opens useful sites. Here is what AT Filter actually does.

The filter runs on the device

AT Filter is installed on the phone, tablet or computer and decides on the spot which sites open. Your browsing goes through no server, ours or anyone else's: it is faster, and your history stays at home.

Site lists are signed by AT Filter: the device refuses a list changed by anyone else.

Six levels, one per person

  • Essential (free): open Internet, adult sites blocked, safe search and restricted YouTube enforced.
  • Light: also blocks dangerous categories (gambling, dating, violence); as an option, lingerie and women's fashion.
  • Moderate: also blocks social networks, entertainment and image search.
  • Standard: whitelist. Only sites checked by the AT Filter team and those you request open.
  • Strict (Shmirat Einayim): stricter whitelist, women's fashion blocked, images analysed on the computer.
  • Hermetic: only sites opened one by one for your household. Ideal for a young child or a kosher phone.

Each person at home has their own level: a parent on Light, a teenager on Standard and a child on Hermetic.

Always enforced

  • No adult sites, private browsing included.
  • Safe search (SafeSearch) enforced on Google, Bing and other engines.
  • Known workarounds blocked: VPNs, encrypted DNS, proxy browsers, online browsers, virtual machines.

Cannot be removed silently

If someone turns the filter off or tries to remove the app, parents are alerted. On Windows, even an administrator cannot stop AT Filter without the parents' approval.

With reinforced protection on Android, AT Filter becomes the phone's administrator: no uninstall, no reset, no safe mode without your approval. We help you set it up.

A useful site is blocked? Just ask

From the block page, one tap sends an unblock request. The AT Filter team checks the site against a written charter and opens it for your household or for everyone. Parents can also open a site themselves, permanently or for a few hours.

The management console

  • See every device and its status, cut the Internet for 15 minutes, an hour or more.
  • Schedules (night, homework) and automatic Shabbat.
  • Open or block a site, set each person's level.
  • Email alerts if a device stops reporting or the filter is turned off.
  • AT Filter Video: only the YouTube channels you chose.

Supported devices

Available: Android phones and tablets, Windows computers, extension for Chrome, Edge and Brave. Coming soon: iPhone, iPad, Mac, Chromebook and Linux.