Monitoring network

UpDownTracker customers configure checks of individual public websites and APIs. Separate probe nodes make those requests. Scheduled Standard checks start at five-minute intervals; manual checks and optional website-health observations can add requests.

Standard HTTP/HTTPS checks observe availability, expected text or static tracking code. Redirects are bounded and each destination is revalidated. HTTPS certificate observations make a TLS connection without an HTTP User-Agent. Active Tracking uses an isolated Chromium browser with bounded egress; a page can load resources from other public domains.

Standard requests carry an UpDownTracker/1.0 User-Agent with this page and the traffic class. Active Tracking keeps a Chromium-compatible User-Agent with an identifiable UpDownTracker token. The token contains no customer or monitor ID. Public source IPs appear only for explicitly published active or draining nodes; the registry may currently be empty. Check the current feed before allowlisting an address.

ips.json · ips.txt

The service is intended for authorized individual targets. IP and port-range scanning, vulnerability scanning, brute force and exploitation are prohibited. TCP, ICMP and general DNS monitor products are not active. If traffic is unwanted, report it; we can suspend a monitor, account or destination while investigating.

Report traffic · Security contact