Be aware of all problems with your website availability. Be the first one to know about its failures. Even top websites has their availability problems.
You may create WEBO Pulsar account and setup your tests for just a few minutes. Initial balance will be enough for several weeks of 24/7 tests.
Get information about your website availability with detailed charts, e-mail, Jabber or Twitter notifications.
Once a day — free
Once 10 minutes — $0.6 / month
Once a minute with detailed error logs — $7.5 / month