Connection Statistics

These statistics come from 1 of the two servers operating this site. They are a 50% sample of traffic.

Since 23 October 2026 the checker also connects to a control host, probe-emudhra.we-have-a-problem.com, which has an ordinary publicly trusted certificate. Every client that runs the check reaches it, patched or not, so the control shows how many clients of each kind checked at all; the share of them that made no insecure connection is the share that is protected.

User agents are only known for connections that succeeded: insecure clients that accepted a compromised chain, and any client that reached the control host.

User agents are just whatever clients choose to send, so treat them with care: they are often faked, some browsers identify as others (Brave says it is Chrome), apps and bots often borrow a browser's string, and the grouping into browser, version and OS is a best guess from that string.