Uptime is an industry leader in website performance monitoring. Uptime checks your website at one-minute intervals from 30 different locations across 6 continents. There is unlimited capability to monitor HTTP(S), Ping, SSH, TCP, UDP, DNS, SMTP, POP, and IMAP. If downtime is detected by our probe servers, you will be notified via email, SMS, or third-party push notifications. It’s easy to set up and use– start with a free account now!