Add to browser

Choose your browser

Install the Domain Health Checker extension from one place. Chromium-based browsers can use the current package today. More browser-specific options can be enabled here later.

Back

One package works for Chrome, Edge, Brave, Opera, Vivaldi, and Arc. Download it once, unzip it, then load the extracted folder in your browser's extensions page.

Download for Chromium

Firefox now has its own extension package with a Firefox-specific manifest for temporary loading and future signing.

Download for Firefox

Safari now has its own web-extension source package. It still needs Xcode conversion and Apple signing before installation.

Download Safari Source

Current install notes

For Chrome, Edge, Brave, Opera, Vivaldi, and Arc: download the ZIP, unzip it, open the browser extensions page, enable developer mode, then choose Load unpacked and select the extracted folder.

For Firefox: download the ZIP, open about:debugging, choose This Firefox, then load the extension using its manifest.json.

For Safari: download the source ZIP, convert it with xcrun safari-web-extension-converter, then build and sign it in Xcode.