I came across SiteUpTime.com which does web site monitoring, as the name implies. They offer a free plan which I just signed up for to monitor The OS Quest.
The free plan includes:
- 1 Monitor
- 30 or 60 minute check intervals
- 4 Monitoring Locations
- Email Alerts
- Monthly Reports
- Online Statistics
- Control Panel
- Web Server Monitoring (http)
- Email Server Monitoring (pop3)
- Email Server Monitoring (smtp)
- FTP Server Monitoring (ftp)
- Public Statistics
There are some reguirements on the free account. You need to link to their site (I added a badge to the right sidebar) and you need to agree to receive occassional emails about their services. Plus you can only have one free account.
The way the system works is you specify a primary location (of the four) when creating the monitor. If the site in not accessible from the selected monitor then additional locations will be checked. The locations are San Fransisco, Chicago, New York and London.
The also have Premium and Advanced plans which increase the number of monitors, frequency of monitoring and the type of services that can be monitored.
It’s worth noting that your monitoring services, not servers. So if you want to monitor both ftp, web and email on a server you’ll need three monitors.
I just signed up so I can’t really say if the service is as good as it seems. But, it will be interesting to see how Bluehost does, even though a 30 minute interval leaves a lot of time for unnoticed server reboots.