Verify up-time of your environment.
End User Website Monitoring
Start with simulation of End User hitting your website,
|UpTimeRobot||Free with Pro services||TBD||May 15 registered account for www.bonsaiframework.com|
|BonsaiFramework Heart Beat||Free|
- Up Time -
- Partial Loads - Detect and show HTTP Response on partial page loads
https://tools.pingdom.com - Look at DNS and other aspects of your site to determine what is slowing it down.