Last updated: 6 September 2026
Break the Chain does not collect, store, transmit or sell any of your data. There is no server, no account, no analytics and no telemetry. Nothing you do with this extension is visible to its author or to anyone else.
When you click Scan this page, the extension reads the links on that page and sends an HTTP request to each one, directly from your browser, to find out whether it still works. This is the same thing that would happen if you clicked every link yourself, and it is the entire purpose of the extension.
Those requests go only to the sites the links point at. They do not pass through any server belonging to the author. The extension is not told which sites you visit, and has no way to report them anywhere.
Requests are sent with your browser's existing cookies, so that a link only you can see is checked as you rather than as a stranger. Those cookies never leave your browser and are never read by the extension.
Two things are stored locally in your own browser:
chrome.storage.sync. If you have Chrome Sync switched on,
Chrome may sync these settings between your own devices, the same way it syncs your
bookmarks. That is between you and Chrome; the extension is not part of it.chrome.storage.session,
temporary storage that Chrome clears when you close the browser.Both are readable only by this extension, on your machine. Neither is ever uploaded.
The extension asks for permission to send requests to any site (<all_urls>),
because the links on a page can point anywhere and there is no way to know where in advance.
This permission is optional: installing the extension does not grant it. It is
requested from a button in the extension's popup the first time you run a scan, and you can
withdraw it at any time from Chrome's extension settings.
Any future version that changes what is described here will update this page and say so in the release notes.
Questions or concerns: open an issue on GitHub.