What is uptime?

[pritsupport]

Uptime is the percentage of time that a web site is working. For example, if some host has an uptime average of 99.86%, this means that your site will be down for a total about 1 hour each month. We monitor uptime of customer websites of many web hosts and we display this data on the host's details page. Some hosts also offer "uptime guarantees" but this is not as valuable as it might appear

 

[RH-Calvin]

Yes uptime is a very important factor that defines a web host stability and reliability. Usually most hosts offer a guaranteed 99.99% uptime.

 

[Page]

Also get the right information on the best server that are always up. You don't want to have an host that keeps going down