Checks run from this browser. This copy is served over HTTPS, so it cannot check LAN devices at all — the browser blocks private-network requests from an https page, and those targets live on the NAS copy of this board instead.
A site that answers with any HTTP status (even a 404 or an error page) shows as
Reachable ~, because cross-origin rules hide the status code — only the sites with a
status.php endpoint can be confirmed healthy and earn OK ✓, with their
version.
Edit the SITES list at the top of this file to add or change targets. History is
stored locally in this browser.