Made by Google Chrome extension.
Suspicious Site Reporter is available at the webstore.
With the Suspicious Site Reporter extension, you’ll see an icon when you’re on a potentially suspicious site, and more information about why the site is suspicious. Click the icon to report unsafe sites to Google Safe Browsing for further evaluation.
Most users should be able to use the version of the extension in the Chrome
Web Store, but you may also compile the extension yourself by running the
following from the extension/ directory:
./do.sh install_deps [os] // os can be osx, win or linux (default)
./do.sh build
You may then load the unpacked extension from extension/build/extension.
Note that if extension is built from here instead of using the version on the webstore, the private referrer chain API will be unavailable.