Uptime Monitoring
Reachability checks for any target — a URL, host, port or mail server — independent of the other modules. Each target shows current state, recent history and latency, polled on your schedule by ICMP, TCP, UDP, SMTP or HTTP(S). UDP checks send a real question where the port has one (DNS on 53, NTP on 123) and read the answer; an SMTP check holds the mail server's own conversation (greeting, EHLO, STARTTLS or TLS) so a port that answers but cannot take mail is down. Two views of one list: Internal for your team and External for what your company sees from outside, with a Move button between them.
- ICMP, TCP, UDP, SMTP and HTTP(S) checks, with uptime reports over any window
- Live status, latency and rolling uptime per target; Internal and External views of the same list
- A status page for your company at uptime.dtrvantage.com: the external targets published on a cadence you set, read at a link the licence makes — nobody signs up, and the link rotates daily with a one-hour grace
- Watch anything — appliances, hosts, mail relays, or third-party services

