When an e-commerce company is dependent on its Web Site, downtime is unacceptable, but unfortunately it sometimes happens. It is essential that if it does happen, website owners are informed and can take action before customers are affected and business is lost.
Several companies run worldwide monitoring stations which conduct accessibility tests on websites, servers, network services, ports and hardware devices like routers, etc. At each check interval (anything from 1 to 60 minutes depending on the service selected) a series of geographically dispersed monitoring stations check your server. If more than one location detects a connection failure, an email alert is sent to the website owner. Owners are also notified when the website becomes accessible again.
Companies offering this service include: